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#1 2014-12-14 23:57:17

Ziqumu
Member
Registered: 2014-12-14
Posts: 8

Asus Transformer book T200TA

Hello,
I'm trying to put an Archlinux on the Asus Transformer book T200TA, and I will share here my progress. I will take note of a lot of things, when I manage to do something or when something does not work. And if you have any ideas to make something works, tell me !

Current status (for TL;DR)

- Boot under archiso : Working with patch
- Boot Archlinux on the keyboard's HDD : Working by putting boot and efi partition on the internal memory
- Virtualization of Windows 8.1 under linux : Partially working only with a 64 bit linux as host
- SD card : Working with patch
- Graphics : Working
- Random freezes : Fixed ?. Didn't experienced any since my new installation with linux 4.0
- xhci_hcd bug at boot ; Work in USB2 mode only
- Backlight control : Working
- Sound : Work on both headphone and speakers in stereo but you have to edit an alsa config file for enabling sound on one or both output and for setting the sound level. Microphone not tested.
- Wifi : Working

- Bluetooth : Not working: Not working
- Battery indicator : Working With kernell patch

- Touchpad : Partially working : Only one finger and very unpleasant because the cursor move a little before you click.
- Touchscreen : Partially working : Works randomly and seems to not release click when you remove your finger.


Sources

The T200TA has a lot on common with the T100TA, so, much of my fixes come from this computer (as it has been release one year before and the T200 is currently pretty new).
- http://www.jfwhome.com/2014/03/07/perfe … book-t100/
- https://github.com/AdamWill/baytrail-m
- https://bbs.archlinux.org/viewtopic.php?id=179948

Boot under archiso

If you try to boot, it will not work. Because, as T100, it search only for 32bit efi (even if the cpu can handle 64bit OS). You can do like him.
Or you can do like me, I think it's easier, but really dirty (it's not a full script, execute it only part by part) :

## Create working directory
mkdir work
cd work

## Build grub and get missing bootloader files bootia32.efi
git clone git://git.savannah.gnu.org/grub.git
cd grub
./autogen.sh
export EFI_ARCH=i386
./configure --with-platform=efi --target=${EFI_ARCH} --program-prefix=""
make
cd grub-core
../grub-mkimage -d . -o bootia32.efi -O i386-efi -p /boot/grub ntfs hfs appleldr boot cat efi_gop efi_uga elf fat hfsplus iso9660 linux keylayouts memdisk minicmd part_apple ext2 extcmd xfs xnu part_bsd part_gpt search search_fs_file chain btrfs loadbios loadenv lvm minix minix2 reiserfs memrw mmap msdospart scsi loopback normal configfile gzio all_video efi_gop efi_uga gfxterm gettext echo boot chain eval
cp bootia32.efi ../../bootia32.efi
cd ../../
rm -r grub

##Get all file from the current archlinux install iso
#Search and replace all XXXX.XX.XX by the current release date and /dev/sdX by your usb key address. If you find a way to extract both partion from iso without dd, it should be faster than that, so tell me if you know how to do that.
dd bs=4M if="archlinux-XXXX.XX.XX-dual.iso" of=/dev/sdX
mkdir usb
mkdir newiso

# Unplug and replug your usb key and wait a little if mount doens't work :
mount /dev/sdX2 ./usb
cp -r usb/* newiso/
sync
umount usb

mount /dev/sdX1 ./usb
cp -r usb/* newiso/
sync
umount usb

rmdir usb

## Prepare new usb key content
mv bootia32.efi newiso/EFI/boot/
mkdir -p newiso/boot/grub

echo "
menuentry 'Arch Linux i686'{
echo 'Loading Linux core repo kernel ...'
linux /arch/boot/i686/vmlinuz nomodeset archisobasedir=arch archisolabel=ARCHISO
echo 'Loading initial ramdisk ...'
initrd /arch/boot/i686/archiso.img
}
menuentry 'Arch Linux x86_64'{
echo 'Loading Linux core repo kernel ...'
linux /arch/boot/x86_64/vmlinuz nomodeset archisobasedir=arch archisolabel=ARCHISO
echo 'Loading initial ramdisk ...'
initrd /arch/boot/x86_64/archiso.img
}" > newiso/boot/grub/grub.cfg

## Prepare the usb key partition
gdisk /dev/sdX
	    3       # Create blank GPT
	    o       # Create a new empty GPT
	    y 		# Proceed
	    n       # New partition
	            # Default partition number
	            # Default first sector
	            # Default last sector
	    EF00    # Bootable efi partition
	    c       # change partion's name
            ARCHISO
	    w       # Write modifications on the disk
	    Y       # Proceed

mkfs.fat -F 32 /dev/sdX1

echo mtools_skip_check=1 >> ~/.mtoolsrc
mlabel -i /dev/sdX1 -s ::ARCHISO
rm ~/.mtoolsrc

## Copy files to the usb key
mkdir usb
mount /dev/sdX1 usb
cp -r newiso/* usb/
sync
umount usb
rmdir usb

## Cleaning
cd ../
rm -r work

A better way of fixing that should be building a x86 version of the file `PreLoader` from the repo `git://git.kernel.org/pub/scm/linux/kernel/git/jejb/efitools.git` because this file is renamed as `bootx64.efi` during the archiso creation, and the missing file is the x86 equivalent : `bootia32.efi`. Anyway, I didn't manage to build it, so I gave up this path. Tell me if you find something better.

Boot Archlinux on the keyboard's HDD

I cannot currently use this computer under linux for everyday, but I need a linux to work or dev. And I have to admit that the windows UI is much better for touchscreen than any linux desktop that I tried. The internal memory is only 30GB. So I let Windows 8.1 on internal memory for "tablet mode" and linux on hard drive for "netbook mode".

I didn't find any way to make the computer boot to the hard drive (or the micro usb card of 64GB), the efi-bios don't see them (the HDD is pluged in usb 3.0, but even in USB 2.0 mode it does the same).

To make it work, you have to put the boot and efi partition on the internal memory :
- Create a boot parition (100mo ext2) on the internal memory or use the windows rescue partition (300mo, ntfs, ~86%used after grub and vmlinuz installation). And during your installation process, mount it at /boot (/dev/mmcblkpX)
- Use the windows EFI parition (100mo fat32) and mount it to /boot/efi (/dev/mmcblkpY)
- Then (re-)install linux (need internet connexion, wireless or no. Dont forget to start dhcpcd)

    mount /dev/sdbZ /mnt # with /dev/sdbZ your keyboard's hdd root partition where linux will be installed
    mkdir /mnt/boot 
    mount /dev/mmcblkpX /mnt/boot
    mkdir /mnt/boot/efi
    mount /dev/mmcblkpY /mnt/boot/efi
    pacstrap /mnt/ base grub efibootmgr
	genfstab -U -p /mnt >> /mnt/etc/fstab

- and install grub on partition

    arch-chroot /mnt
    grub-install --target=i386-efi --efi-directory=/boot/efi --bootloader-id=grub --recheck

- Edit /etc/grub.d/40_custom and add at the end :

if [ "${grub_platform}" == "efi" ]; then
	menuentry "Microsoft Windows Vista/7/8/8.1 UEFI-GPT" {
		insmod part_gpt
		insmod fat
		insmod search_fs_uuid
		insmod chain
		search --fs-uuid --set=root --hint-bios=hd0,gptY --hint-efi=hd0,gptY --hint-baremetal=ahci0,gptY [fs_uuid]
		chainloader /EFI/Microsoft/Boot/bootmgfw.efi
	}
fi

with gptY, the Y from /dev/mmcblkpY above (the efi partition)
and [hints_string] is gave by the command

grub-probe --target=fs_uuid /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi

- Apply grub config

    grub-mkconfig -o /boot/grub/grub.cfg

Now I can boot to "Windows Boot Manager" or "grub" from bios. But I choosed to have grub by default and then he ask me what I want.

To install on SD card, you can do the same, but you have first to reload the sdhci module on archiso :

modprobe -r sdhci_acpi
modprobe -r sdhci
modprobe sdhci debug_quirks=0x8000
modprobe sdhci_acpi

If one of the first two line, answere you that "the module is in use". Try to run lsmod and try to disable modules that are on the line of sdhci or sdhci_acpi module.

Virtualization

What works :
- host Win32, guest linux32
- host win32, guest win32
- host linux32, guest linux32
- host linux64, guest win
What doesn't work:
- host linux32, guest win32

Windows 8.1 guest : With QEMU and Virtualbox, same problem during installation (or boot when already installed) we got a

Your PC needs to restart.
Please hold down the power button.
Error Code: 0x0000000A
Parameters:
0xFFFFFFE6
0x0000001F
0x00000000
0x8192BFAB

After 3min virtualbox said that a critical error happend and tell us to watch the log. But it seem useless because the bug happend after 7 seconds and nothing show up after 7 seconds.

SD Card
http://www.jfwhome.com/2014/03/07/perfect-ubuntu-or-other-linux-on-the-asus-transformer-book-t100/ wrote:

The SD card reader works with newer kernels, but the sdhci module needs some configuration. Create a new file:

sudo nano /etc/modprobe.d/sdhci.conf

Then add the following:

options sdhci debug_quirks=0x8000

ctrl-o then ctrl-x to save and exit, then:

sudo mkinitcpio -p linux
Graphics

2D and 3D accelerations are enabled with xf86-video-intel 2.99.917 and mesa 10.4 :

$ glxinfo | grep direct                                    :(
direct rendering: Yes
    GL_ARB_draw_elements_base_vertex, GL_ARB_draw_indirect, 
    GL_ARB_map_buffer_range, GL_ARB_multi_bind, GL_ARB_multi_draw_indirect, 
$ glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Bay Trail x86/MMX/SSE2
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.4.0
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.4.0
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.4.0
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.0
OpenGL ES profile extensions:

However firefox doens't enable 3D acceleration by default, you have to force it. To check if it use it, go to about:support
And this mean that, it doesn't support it :

GPU Accelerated Windows	0/1 Basic

To force it :
- Got to about:config
- Set layers.acceleration.force-enabled
- Set layers.offmainthreadcomposition.enabled to true

And restart firefox. Now you should have

GPU Accelerated Windows	1/1 OpenGL (OMTC)

Warning : 3D acceleration can make firefox more buggy, so try to disable it if you have problems.
source : http://askubuntu.com/questions/491750/f … in-firefox

Random freezes

After some minutes (last time after ~40minutes) the system freeze. I don't know if it's only graphical or not. This freeze seem to happend when the cpu/gpu has a lot to do.

I've done a clean install with default kernel 4.0 in may 2015, and since that, I didn't have any freeze.

xhci_hcd bug at boot

When I enable XHCI in bios, sometime, I get that

xhci_hcd 0000:00:14.0: Error while assigning device slot ID
xhci_hcd 0000:00:14.0: Max number of devices this xHCI host supports is 32.
usb usb1-port3: couldn't allocate usb_device

The port change randomly and when it is port3, I loose the keybard and mouse and I have to make a hard reebot.

To "fix" this, I disabled XHCI (wich mean USB3) from the bios.

Still happen with kernel 4.0

Sound

With the work of  sid789. I manage to make sound work on Linux 4.0.

Save this file somewhere on your computer : asound.state

state.bytrt5640 {
#### General
	# Level
	control.1 {
		iface MIXER
		name 'DAC1 Playback Volume'
		value.0 175	# Left volume
		value.1 175	# right volume
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 175'
			dbmin -65625
			dbmax 0
			dbvalue.0 0
			dbvalue.1 0
		}
	}
	# Disable both output Right
	control.51 {
		iface MIXER
		name 'Stereo DAC MIXR DAC R1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	# Enable both Left speaker
	control.54 {
		iface MIXER
		name 'Stereo DAC MIXL DAC L1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	# Channel to listen
	control.21 {
		iface MIXER
		name 'DAC IF1 Data Switch'
		value 0
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 Normal
			item.1 Swap
			item.2 'left copy to right'
			item.3 'right copy to left'
		}
	}

	# Enable
	# Only 0 and 2 works
	control.100 {
		iface MIXER
		name 'DAI select'
		value 0
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 '1:1|2:2'
			item.1 '1:2|2:1'
			item.2 '1:1|2:1'
			item.3 '1:2|2:2'
		}
	}
##### Speaker #####

	#Enable
	control.27 {
		iface MIXER
		name 'Speaker Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	#Change a little the volume..
	control.19 {
		iface MIXER
		name 'Class D SPK Ratio Control'
		value 10
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 '1.66x'
			item.1 '1.83x'
			item.2 '1.94x'
			item.3 '2x'
			item.4 '2.11x'
			item.5 '2.22x'
			item.6 '2.33x'
			item.7 '2.44x'
			item.8 '2.55x'
			item.9 '2.66x'
			item.10 '2.77x'
		}
	}

	# Enable Left speaker
	control.62 {
		iface MIXER
		name 'Speaker L Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	# Enable right speaker
	control.61 {
		iface MIXER
		name 'Speaker R Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	# Enable right channel on right speaker
	control.67 {
		iface MIXER
		name 'SPOR MIX DAC R1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	# Enable right channel on left speaker
	control.70 {
		iface MIXER
		name 'SPOL MIX DAC R1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	# Enable left channel
	control.71 {
		iface MIXER
		name 'SPOL MIX DAC L1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

##### headphone #####
	# Enable
	control.24 {
		iface MIXER
		name 'Headphone Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	#Enable too
	control.34 {
		iface MIXER
		name 'HPO MIX DAC1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}


	# Enable Left
	control.98 {
		iface MIXER
		name 'DAC MIXL INF1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	# Enable Right
	control.96 {
		iface MIXER
		name 'DAC MIXR INF1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

	# Enable right
	control.59 {
		iface MIXER
		name 'HP R Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	# Enable Left
	control.60 {
		iface MIXER
		name 'HP L Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	# Don't know what, but change something on headphone
	control.58 {
		iface MIXER
		name 'DAC L2 Mux'
		value 0
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 IF2
			item.1 'Base L/R'
		}
	}

## Useless on output
	control.2 {
		iface MIXER
		name 'Mono Playback Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.11 {
		iface MIXER
		name 'Mono DAC Playback Volume'
		value.0 0
		value.1 0
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 175'
			dbmin -65625
			dbmax 0
			dbvalue.0 -1500
			dbvalue.1 -1500
		}
	}
	control.3 {
		iface MIXER
		name 'Speaker Channel Switch'
		value.0 false
		value.1 false
		comment {
			access 'read write'
			type BOOLEAN
			count 2
		}
	}
	control.4 {
		iface MIXER
		name 'Speaker Playback Volume'
		value.0 0
		value.1 0
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 39'
			dbmin -4650
			dbmax 1200
			dbvalue.0 -900
			dbvalue.1 -900
		}
	}
	control.5 {
		iface MIXER
		name 'HP Channel Switch'
		value.0 false
		value.1 false
		comment {
			access 'read write'
			type BOOLEAN
			count 2
		}
	}
	control.6 {
		iface MIXER
		name 'HP Playback Volume'
		value.0 0
		value.1 0
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 39'
			dbmin -4650
			dbmax 1200
			dbvalue.0 1200
			dbvalue.1 1200
		}
	}
	control.7 {
		iface MIXER
		name 'OUT Playback Switch'
		value.0 false
		value.1 false
		comment {
			access 'read write'
			type BOOLEAN
			count 2
		}
	}
	control.8 {
		iface MIXER
		name 'OUT Channel Switch'
		value.0 false
		value.1 false
		comment {
			access 'read write'
			type BOOLEAN
			count 2
		}
	}
	control.9 {
		iface MIXER
		name 'OUT Playback Volume'
		value.0 0
		value.1 0
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 39'
			dbmin -4650
			dbmax 1200
			dbvalue.0 -1950
			dbvalue.1 -1950
		}
	}
	control.10 {
		iface MIXER
		name 'DAC2 Playback Switch'
		value.0 false
		value.1 false
		comment {
			access 'read write'
			type BOOLEAN
			count 2
		}
	}
	control.12 {
		iface MIXER
		name 'IN1 Boost'
		value 8
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '0 - 8'
			dbmin 0
			dbmax 5200
			dbvalue.0 3000
		}
	}
	control.13 {
		iface MIXER
		name 'IN2 Boost'
		value 8
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '0 - 8'
			dbmin 0
			dbmax 5200
			dbvalue.0 3500
		}
	}
	control.14 {
		iface MIXER
		name 'IN Capture Volume'
		value.0 0
		value.1 0
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 31'
			dbmin -3450
			dbmax 1200
			dbvalue.0 -300
			dbvalue.1 -300
		}
	}
	control.15 {
		iface MIXER
		name 'ADC Capture Switch'
		value.0 false
		value.1 false
		comment {
			access 'read write'
			type BOOLEAN
			count 2
		}
	}
	control.16 {
		iface MIXER
		name 'ADC Capture Volume'
		value.0 0
		value.1 0
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 127'
			dbmin -17625
			dbmax 30000
			dbvalue.0 28500
			dbvalue.1 28500
		}
	}
	control.17 {
		iface MIXER
		name 'Mono ADC Capture Volume'
		value.0 0
		value.1 0
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 127'
			dbmin -17625
			dbmax 30000
			dbvalue.0 27000
			dbvalue.1 27000
		}
	}
	control.18 {
		iface MIXER
		name 'ADC Boost Gain'
		value.0 3
		value.1 3
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 3'
			dbmin 0
			dbmax 3600
			dbvalue.0 1200
			dbvalue.1 1200
		}
	}
	control.20 {
		iface MIXER
		name 'ADC IF1 Data Switch'
		value 1
		comment {
			access 'read write'
			type ENUMERATED
			count 3
			item.0 Normal
			item.1 'left copy to right'
			item.2 'right copy to left'
			item.3 Swap
		}
	}
	control.22 {
		iface MIXER
		name 'ADC IF2 Data Switch'
		value 3
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 Normal
			item.1 'left copy to right'
			item.2 'right copy to left'
			item.3 Swap
		}
	}
	control.23 {
		iface MIXER
		name 'DAC IF2 Data Switch'
		value 1
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 Normal
			item.1 'left copy to right'
			item.2 'right copy to left'
			item.3 Swap
		}
	}
	control.25 {
		iface MIXER
		name 'Headset Mic Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.26 {
		iface MIXER
		name 'Internal Mic Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.28 {
		iface MIXER
		name 'Mono MIX DAC R2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.29 {
		iface MIXER
		name 'Mono MIX DAC L2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.30 {
		iface MIXER
		name 'Mono MIX OUTVOL R Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.31 {
		iface MIXER
		name 'Mono MIX OUTVOL L Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.32 {
		iface MIXER
		name 'Mono MIX BST1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.33 {
		iface MIXER
		name 'HPO MIX DAC2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.35 {
		iface MIXER
		name 'HPO MIX HPVOL Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.36 {
		iface MIXER
		name 'OUT MIXR SPK MIXR Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.37 {
		iface MIXER
		name 'OUT MIXR BST2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.38 {
		iface MIXER
		name 'OUT MIXR BST1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.39 {
		iface MIXER
		name 'OUT MIXR INR Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.40 {
		iface MIXER
		name 'OUT MIXR REC MIXR Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.41 {
		iface MIXER
		name 'OUT MIXR DAC L2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.42 {
		iface MIXER
		name 'OUT MIXR DAC R2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.43 {
		iface MIXER
		name 'OUT MIXR DAC R1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.44 {
		iface MIXER
		name 'OUT MIXL SPK MIXL Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.45 {
		iface MIXER
		name 'OUT MIXL BST1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.46 {
		iface MIXER
		name 'OUT MIXL INL Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.47 {
		iface MIXER
		name 'OUT MIXL REC MIXL Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.48 {
		iface MIXER
		name 'OUT MIXL DAC R2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.49 {
		iface MIXER
		name 'OUT MIXL DAC L2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.50 {
		iface MIXER
		name 'OUT MIXL DAC L1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.52 {
		iface MIXER
		name 'Stereo DAC MIXR DAC R2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.53 {
		iface MIXER
		name 'Stereo DAC MIXR ANC Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.55 {
		iface MIXER
		name 'Stereo DAC MIXL DAC L2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.56 {
		iface MIXER
		name 'Stereo DAC MIXL ANC Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.57 {
		iface MIXER
		name 'DAC R2 Mux'
		value 0
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 IF2
		}
	}
	control.63 {
		iface MIXER
		name 'LOUT MIX DAC L1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.64 {
		iface MIXER
		name 'LOUT MIX DAC R1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.65 {
		iface MIXER
		name 'LOUT MIX OUTVOL L Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.66 {
		iface MIXER
		name 'LOUT MIX OUTVOL R Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.68 {
		iface MIXER
		name 'SPOR MIX SPKVOL R Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.69 {
		iface MIXER
		name 'SPOR MIX BST1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.72 {
		iface MIXER
		name 'SPOL MIX SPKVOL R Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.73 {
		iface MIXER
		name 'SPOL MIX SPKVOL L Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.74 {
		iface MIXER
		name 'SPOL MIX BST1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.75 {
		iface MIXER
		name 'SPK MIXR REC MIXR Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.76 {
		iface MIXER
		name 'SPK MIXR INR Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.77 {
		iface MIXER
		name 'SPK MIXR DAC R1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.78 {
		iface MIXER
		name 'SPK MIXR DAC R2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.79 {
		iface MIXER
		name 'SPK MIXR OUT MIXR Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.80 {
		iface MIXER
		name 'SPK MIXL REC MIXL Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.81 {
		iface MIXER
		name 'SPK MIXL INL Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.82 {
		iface MIXER
		name 'SPK MIXL DAC L1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.83 {
		iface MIXER
		name 'SPK MIXL DAC L2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.84 {
		iface MIXER
		name 'SPK MIXL OUT MIXL Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.85 {
		iface MIXER
		name 'DIG MIXR DAC R1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.86 {
		iface MIXER
		name 'DIG MIXR DAC R2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.87 {
		iface MIXER
		name 'DIG MIXL DAC L1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.88 {
		iface MIXER
		name 'DIG MIXL DAC L2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.89 {
		iface MIXER
		name 'Mono DAC MIXR DAC R1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.90 {
		iface MIXER
		name 'Mono DAC MIXR DAC R2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.91 {
		iface MIXER
		name 'Mono DAC MIXR DAC L2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.92 {
		iface MIXER
		name 'Mono DAC MIXL DAC L1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.93 {
		iface MIXER
		name 'Mono DAC MIXL DAC L2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.94 {
		iface MIXER
		name 'Mono DAC MIXL DAC R2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.95 {
		iface MIXER
		name 'DAC MIXR Stereo ADC Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.97 {
		iface MIXER
		name 'DAC MIXL Stereo ADC Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.99 {
		iface MIXER
		name 'SDI select'
		value 0
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 IF1
			item.1 IF2
		}
	}
	control.101 {
		iface MIXER
		name 'Mono ADC MIXR ADC1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.102 {
		iface MIXER
		name 'Mono ADC MIXR ADC2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.103 {
		iface MIXER
		name 'Mono ADC MIXL ADC1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.104 {
		iface MIXER
		name 'Mono ADC MIXL ADC2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.105 {
		iface MIXER
		name 'Stereo ADC MIXR ADC1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.106 {
		iface MIXER
		name 'Stereo ADC MIXR ADC2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.107 {
		iface MIXER
		name 'Stereo ADC MIXL ADC1 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.108 {
		iface MIXER
		name 'Stereo ADC MIXL ADC2 Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.109 {
		iface MIXER
		name 'Mono ADC R2 Mux'
		value 0
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 'DMIC R1'
			item.1 'DMIC R2'
			item.2 'Mono DAC MIXR'
		}
	}
	control.110 {
		iface MIXER
		name 'Mono ADC R1 Mux'
		value 'Mono DAC MIXR'
		comment {
			access 'read write'
			type ENUMERATED
			count 0
			item.0 'Mono DAC MIXR'
			item.1 ADCR
		}
	}
	control.111 {
		iface MIXER
		name 'Mono ADC L1 Mux'
		value 1
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 'Mono DAC MIXL'
			item.1 ADCL
		}
	}
	control.112 {
		iface MIXER
		name 'Mono ADC L2 Mux'
		value 0
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 'DMIC L1'
			item.1 'DMIC L2'
			item.2 'Mono DAC MIXL'
		}
	}
	control.114 {
		iface MIXER
		name 'Stereo ADC2 Mux'
		value 0
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 DMIC1
			item.1 DMIC2
			item.2 'DIG MIX'
		}
	}
	control.115 {
		iface MIXER
		name 'RECMIXR HPOR Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.116 {
		iface MIXER
		name 'RECMIXR INR Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.117 {
		iface MIXER
		name 'RECMIXR BST2 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.118 {
		iface MIXER
		name 'RECMIXR BST1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.119 {
		iface MIXER
		name 'RECMIXR OUT MIXR Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.120 {
		iface MIXER
		name 'RECMIXL HPOL Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.121 {
		iface MIXER
		name 'RECMIXL INL Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.122 {
		iface MIXER
		name 'RECMIXL BST2 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.123 {
		iface MIXER
		name 'RECMIXL BST1 Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.124 {
		iface MIXER
		name 'RECMIXL OUT MIXL Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}

# WARNING
	# !!WARN!! BUZZ ANS BREAK EVERYTHING UNTIL REBOOT !!!!!!!
	control.113 {
		iface MIXER
		name 'Stereo ADC1 Mux'
		value 1
		comment {
			access 'read write'
			type ENUMERATED
			count 1
			item.0 'DIG MIX'
			item.1 ADC
		}
	}

}

and you can load it by doing

 alsactl -f asound.state restore

To change the values, you have to edit the field "value" of a control and reload the config file with the precedent command. I tried to comment it, but I didn't test any microphone, because I didn't need it currently. We are supposed to have 2 microphones : internal and via the jack. I think it's possible, but I don't have any jack microphone, so if you need it, try to change the different settings and tell me if you find something.

I don't think any GUI, will manage to make the sound control work (even in alsamixer, it's a big mess), because there is no convention followed.

Wifi

To enable the wifi, we need to copy the firmware from your EFI vars to your system:

```
cat /sys/firmware/efi/efivars/nvram-74b00bd9-805a-4d61-b51f-43268123d113 > /lib/firmware/brcm/brcmfmac43340-sdio.txt

# Reboot or reload the module
modprobe -r brcmfmac && modprobe brcmfmac
```
You can also download the firmware from https://github.com/Asus-T100/firmware/r … 0-sdio.txt


Some of you have notice that the wifi antenna seems to overheat, and manage to fix it by executing this command
```
sudo iw wlan0 set txpower auto
```

To be continued

Personal notes :
http://superuser.com/questions/490476/h … usb-or-dvd

Last edited by Ziqumu (2017-10-30 22:27:37)

Offline

#2 2014-12-19 19:25:34

kwatrecht
Member
Registered: 2014-07-30
Posts: 7

Re: Asus Transformer book T200TA

Do you have  installed alsa-utils, pulseaudio and pulseaudio-alsa? if not try it.

Last edited by kwatrecht (2014-12-19 19:25:49)

Offline

#3 2014-12-19 21:30:45

dhead
Member
Registered: 2012-09-26
Posts: 190

Re: Asus Transformer book T200TA

@Ziqumu

Visualization -> Virtualization
Can you post the output of the following ?

 
grep -E "(vmx|svm|0xc0f)" --color=always /proc/cpuinfo

I'm very hesitant on getting a Bay-Trail-T device as my experience with an Intel's ULV GPU isn't good.
With Haswell 2995U (which got the basic GT1 GPU core) I'm experiencing slowdowns of the system when using Chromium with or without another application that render with the GPU like Kodi/XBMC.
If you're a heavy Chromium user I would love to hear if you experiencing such slowdowns.
Also, if you can please run 'testdisplay' with and without an external display and share any error message from journald, I confirmed the errors I seeing when slowdown occur also appearing when running 'testdisplay' (to be precise, similar errors).
'testdisplay' can be found in intel-gpu-tools, you'll need to build it manually with the tests enabled so I recommend getting the PKGBUILD ($ yaourt -G) and editing it, also the tests are not install by default so just run the 'testdisplay' from the source folder after building it.

Offline

#4 2014-12-23 03:43:32

Ziqumu
Member
Registered: 2014-12-14
Posts: 8

Re: Asus Transformer book T200TA

@kwatrecht : Yes, but gnome still show a dummy output. I think there is a fix for the T100, I will try but I'm not focused on sound currently.

@dhead : Thanks, corrected.
I added the output that you wanted and some other informations about vm. Do you have an Idee ?
I'm using firefox, I've checked "about:support" and GPU acceleration is not enabled on T200 (or I've done something bad with my gpu driver, but I think xf86-video-intel is enough, no ?). Don't know if I can test if chrome support it. I will try to build  intel-gpu-tools another day.

Offline

#5 2014-12-23 08:12:32

dhead
Member
Registered: 2012-09-26
Posts: 190

Re: Asus Transformer book T200TA

@Ziqumu

Your cpu supports virtualization, see this , this confirm Intel's product page,you can also try running lscpu.
I might be wrong but I don't think further steps needed in order to use virtualization (enabling in bios).

I've seen 2-3 more posts here of users trying to run Arch on Bay-Trail-T devices, I would suggest creating a generic Bay-Trail-T page based on your experience as the basics are the same like: booting, running 64bit kernel with 32bit board firmware (though newer 4gb models got 64 firmware), misc patches.

Last edited by dhead (2014-12-24 11:38:22)

Offline

#6 2014-12-24 11:18:37

Ziqumu
Member
Registered: 2014-12-14
Posts: 8

Re: Asus Transformer book T200TA

Virtualization is working on windows, so I know it is enabled, I just have to find the bug that make windows crash.

What do you mean by " creating a generic Bay-Trail-T" ? A new thread ? We could create a wiki page for theses devices but before create it, we need fixes.

I added the sdcard fix

Offline

#7 2014-12-24 11:39:30

dhead
Member
Registered: 2012-09-26
Posts: 190

Re: Asus Transformer book T200TA

@Ziqumu

Yes, I meant create a wiki page.
Maybe even have an AUR linux package with patches that aren't in upstream yet.

Offline

#8 2015-03-05 14:24:19

Dregel
Member
Registered: 2007-01-28
Posts: 32

Re: Asus Transformer book T200TA

Could we get som elaboration on some of these patches?
I'm still without battery indication, sound and wifi.

Offline

#9 2015-03-06 06:03:38

f3flight
Member
Registered: 2015-03-04
Posts: 27

Re: Asus Transformer book T200TA

+1 although my device is different (Acer Switch 10), since it also uses Atom BayTrail I think some patches may be useful for me too. Please give links to these patches/sources. I am interested in battery, sdcard, backlight and bluetooth. Thanks!

Offline

#10 2015-03-06 06:08:37

f3flight
Member
Registered: 2015-03-04
Posts: 27

Re: Asus Transformer book T200TA

Actually I've found all the info in the links you have already provided, thank you.

Offline

#11 2015-04-13 09:11:25

kde35
Member
Registered: 2015-04-13
Posts: 71

Re: Asus Transformer book T200TA

Hi, archi iso (archlinux-2015.04.01-dual.iso) boots with bootia32.efi from https://github.com/jfwells/linux-asus-t … otia32.efi , but it only leaves me with grub command shell.  How do I boot from here?  Or are you using different iso?  Thanks.

Offline

#12 2015-05-29 03:56:11

Ziqumu
Member
Registered: 2014-12-14
Posts: 8

Re: Asus Transformer book T200TA

@Dregel, I don't have time to work on that currently, sorry. Try to follow my links on T100.
@f3flight, Good luck !
@kde35 : I think it was a problem of partition name, try again, I fixed it.

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#13 2015-05-30 20:07:22

Ziqumu
Member
Registered: 2014-12-14
Posts: 8

Re: Asus Transformer book T200TA

I added the sound fix

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#14 2015-05-31 18:49:29

sid789
Member
Registered: 2015-05-31
Posts: 6

Re: Asus Transformer book T200TA

Hi! The freezes are still annoying me even with kernel 4.1. The only workaround I found is to add "nomodeset" as kernel parameter. This points to the i915 kms driver. And it fits to my observation of a flickering tty1 console. This is gone with "nomodeset".

Edit: Kernel parameter "i915.modeset=0" should work like "nomodeset". Bot both have the drawback that screen brightness is not adjustable.

Last edited by sid789 (2015-05-31 18:57:00)

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#15 2015-06-02 19:19:07

Ziqumu
Member
Registered: 2014-12-14
Posts: 8

Re: Asus Transformer book T200TA

I've just tested a new configuration that seem to work (one day and half without a crash). I have disable the 3D hardware acceleration :

Create the file : /etc/X11/xorg.conf.d/20-intel.conf And add it :

Section "Device"
   Identifier "Intel Graphics"
   Driver "intel"
   Option "NoAccel" "True"
EndSection

I have tried the nomodeset option but it was making my X server not starting (I think it was because of a personnal configuration that I've forgot to remove).

I think if it works, your option is better because you still have the hardware acceleration, right ? It's just that you cannot have high definition boot screen?
Except I can still set the brightness with xbacklight.. so maybe not..

Edit : It seem that the intel driver only support kms, so if you disable kms (via nomodeset), it disable the intel driver.. That explain why you cannot set the brightness. Source : http://askubuntu.com/a/137482

Last edited by Ziqumu (2015-06-04 13:33:03)

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#16 2015-06-04 17:20:54

sid789
Member
Registered: 2015-05-31
Posts: 6

Re: Asus Transformer book T200TA

Thank you for the information. I have tried to set the acceleration to uxa and to disable acceleration. Both didn't help. The system randomly freezes. I also have a flickering text console tty1. I wonder why the system shall behave differently... I havn't seen system freezes with windows and thus think I don't have a hardware fault.

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#17 2015-06-04 23:00:51

Ziqumu
Member
Registered: 2014-12-14
Posts: 8

Re: Asus Transformer book T200TA

I had still freeze with uxa. I still don't have any freeze with disabled acceleration. But I also have the flickering tty, but it's not a big problem as this is still usable and I don't often use it.

Maybe when you tried, it was another bug that makes you freeze (with an older version of someting).. I don't know, I will write both solution on the topic.

I've done some search on the touchpad : If you look at the device output (cat /dev/hidraw2 for me), you will see that the device don't send anything when you have two finger that touch the device (so it's not possible to use it as dualtouch). I think it's just a starting data that is send from Asus Smart Gesture under windows that start the Multi touch mode. I've start a vritual machine and I gave it the touchpad usb device (wich is also the keyboard... Usb bus 1 address 3) and I started the driver. Under windows it worked well with multitouch. I killed the virtual machine and I got back my keyboard but not the touchpad. I watch at /dev/hidraw2 and the touchpad now give information with two and more fingers (also it give immediatly data and not after a small lag like normally). After a restart it was gone as expected. I watched the usb driver with usbmon and wireshark and I tried to reproduce UsbHid exchange between computer and device but it didn't work. I still don't know why but I will continue to search.

There is 3 sub device on the usb device mouse/keyboard. 0 is the keyboard, 1 the media key (fn keys except sound) from the keyboard, and 2 the touchpad. So if someone has time to works on media keys, I don't think this is verry difficult. (It's more difficult for the sound, win and sleep button on the screeen, because I didn't find any signals from it.

I will try to work on a aur package that give our kernel with fixes this summer. (And maybe also a pre-builded version).

Last edited by Ziqumu (2015-06-04 23:15:27)

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#18 2015-06-14 12:09:01

sid789
Member
Registered: 2015-05-31
Posts: 6

Re: Asus Transformer book T200TA

Thanks that you upgraded the state file for internal loudspeakers to stereo. Did you recognize that changing the volume does not work correctly? With two clicks on the main volume buttons the volume is nearly at its maximum, further increasing the volume makes it only partially louder. I just recognized this in a very quiet situation where I wasn't able to reduce. Do you have an idea where in the state file we have set a gain which makes the master volume useless?

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#19 2015-06-16 21:11:58

sid789
Member
Registered: 2015-05-31
Posts: 6

Re: Asus Transformer book T200TA

There's a patch for the touchscreen of the t200 from Marc Höper: https://plus.google.com/115549990383524 … H9BLfQcy6A. Now the firefox grab and drag works. Maybe also other gestures.

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#20 2015-06-16 21:20:26

sid789
Member
Registered: 2015-05-31
Posts: 6

Re: Asus Transformer book T200TA

I have working wifi without problems for quite a long time now. We could figure out what's wrong on your t200. I have applied the patch from http://thread.gmane.org/gmane.linux.ker … cus=132131. I didn't succeeded applying this patch automatically (with patch command) as it is  based on some other source version. But it's no problem to make the changes manually in the kernel source.

The firmware could be your problem. I don't remember where I got mine from.

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#21 2015-06-17 23:37:45

Ziqumu
Member
Registered: 2014-12-14
Posts: 8

Re: Asus Transformer book T200TA

I currently have the default 4.0 kernel without patch, so it's normal that I don't have wifi. I didn't even tried it. I will make it in some weeks after my finals exams. Il will try all theses patches thanks !

For the sound level, you have to set the DAC1 level selector and not "speaker" or "OUT". (You can edit it on the config file or in alsamixer). My sound was working pretty well (everything manually, from output selection to sound level, but it was working). But now, I don't know what change, but the configuration constantly reset when I use VLC. So if I shut down speaker, it will come back on the next music. I don't know why.

I don't know if you have battery indicator, but if you have not, try this fixe : https://github.com/jfwells/linux-asus-t … 16-battery it worked for me on my precedent instalation.

Concerning freezes, I confirm the solution of disabling hardware acceleration, however if I switch to another tty (ctrl+alt+f2), and then come back, the interface doens't draw correctly and make X crash after some seconds.

Last edited by Ziqumu (2015-06-17 23:40:51)

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#22 2015-07-07 11:01:02

superdinotux
Member
Registered: 2015-07-07
Posts: 2

Re: Asus Transformer book T200TA

Hello,
thank you for your information about sound. Now it is working fine on my ASUS T200ta.
Instead, to get wifi working, I have followed the instruction given by http://forum.frozenbox.org/viewtopic.php?t=143.
This is an italian forum, but there is a box which itemizes the necessary instructions.

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#23 2015-07-22 14:39:43

huvber
Member
Registered: 2011-04-12
Posts: 42

Re: Asus Transformer book T200TA

sid789 wrote:

Hi! The freezes are still annoying me even with kernel 4.1. The only workaround I found is to add "nomodeset" as kernel parameter. This points to the i915 kms driver. And it fits to my observation of a flickering tty1 console. This is gone with "nomodeset".

Edit: Kernel parameter "i915.modeset=0" should work like "nomodeset". Bot both have the drawback that screen brightness is not adjustable.

I still have freezes with this on kernel parameters

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#24 2015-07-22 14:42:25

huvber
Member
Registered: 2011-04-12
Posts: 42

Re: Asus Transformer book T200TA

Ziqumu wrote:

I currently have the default 4.0 kernel without patch, so it's normal that I don't have wifi. I didn't even tried it. I will make it in some weeks after my finals exams. Il will try all theses patches thanks !

For the sound level, you have to set the DAC1 level selector and not "speaker" or "OUT". (You can edit it on the config file or in alsamixer). My sound was working pretty well (everything manually, from output selection to sound level, but it was working). But now, I don't know what change, but the configuration constantly reset when I use VLC. So if I shut down speaker, it will come back on the next music. I don't know why.

I don't know if you have battery indicator, but if you have not, try this fixe : https://github.com/jfwells/linux-asus-t … 16-battery it worked for me on my precedent instalation.

Concerning freezes, I confirm the solution of disabling hardware acceleration, however if I switch to another tty (ctrl+alt+f2), and then come back, the interface doens't draw correctly and make X crash after some seconds.

How do you disable the hardware acceleration?

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#25 2015-11-07 09:05:01

DragonX256
Member
Registered: 2015-11-07
Posts: 8

Re: Asus Transformer book T200TA

I've got a working wi-fi on 4.2.5 kernel and linux-firmware from official repo.

Instead of this command:

cp /sys/firmware/efi/efivars/nvram-74b00bd9-805a-4d61-b51f-43268123d113 /lib/firmware/brcm/brcmfmac43340-sdio.txt

I enter this command:

cat /sys/firmware/efi/efivars/nvram-74b00bd9-805a-4d61-b51f-43268123d113 > /lib/firmware/brcm/brcmfmac43340-sdio.txt

I don't know where is the difference, but now wi-fi is working - interface is visible AND Internet finally works. Without any downloaded patches and firmware files.

UPD: After that you need to reload module:

rmmod brcmfmac
modprobe brcmfmac

or reboot.

UPD2: WARNING!!1 Wi-Fi antenna is overheats when using Linux and working Wi-Fi. And it heats a lot.
I know what I'm talking about - I've disassembled the tablet and know where the wifi antenna is located.

There is choices:
1) Don't do this Wi-Fi working.
2) "blacklist brcmfmac" to /etc/modprobe.d/brcmfmac.conf for better time (don't forget about "mkinitcpio -P").
3) Wait for good Linux kernel or Broadcom firmware update.
P.S. On linux-baytrail kernel from AUR, overheat is still stay.

Maybe I only have this overheat. Try that yourself.

Last edited by DragonX256 (2015-11-14 07:23:43)

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