Dell XPS 13 9350 Late 2015

mkey · 2015-12-14 10:24:16

dedsm wrote:

I'm really sure I have the 9350, USB-C and all, and my screen dims when I have dark content, brightens up when I have white content

Well, this is not ambient light sensor related.
This behavior is probably managed by your desktop manager.
Which one are you using ?

Last edited by mkey (2015-12-14 10:25:15)

dedsm · 2015-12-14 10:28:09

btw, it's not an Ambient Light Sensor, it's Content Adaptive Backlight, and it's builtin into the display firmware, no fix on sight apparently https://github.com/advancingu/XPS13Linu … -100466492

zetxx · 2015-12-14 13:57:41

dedsm wrote:

btw, it's not an Ambient Light Sensor, it's Content Adaptive Backlight, and it's builtin into the display firmware, no fix on sight apparently https://github.com/advancingu/XPS13Linu … -100466492

actually there is a fix: https://github.com/advancingu/XPS13Linu … -160201004

friimaind · 2015-12-14 14:09:31

zetxx wrote:

dedsm wrote:
btw, it's not an Ambient Light Sensor, it's Content Adaptive Backlight, and it's builtin into the display firmware, no fix on sight apparently https://github.com/advancingu/XPS13Linu … -100466492
actually there is a fix: https://github.com/advancingu/XPS13Linu … -160201004

Please kindly note: fix is suitable only for QHD displays because FHD has a locked firmware management.

Last edited by friimaind (2015-12-14 14:09:53)

dedsm · 2015-12-14 14:19:15

zetxx wrote:

actually there is a fix: https://github.com/advancingu/XPS13Linu … -160201004

yes, I noticed, sadly I removed all traces of windows and also have a LUKS full disk encryption with LVM inside, I don't think that plays too well with resizing, I'll try to install Windows 10 on an external drive and test, I'll post my findings here.

davidgf · 2015-12-14 18:56:59

Hey guys, how did you managed to get power down so much!?

I'm using zetxx's TLP config file in github, but I'm getting around 6.8Watts

Is there any other thing I can try? I think I'm good with GPU/DMC firmware so I have no idea what else to try.

Thanks!

SheepOnMeth · 2015-12-14 19:16:01

I have the FHD model (please always specify) , during the day the brightness is between 30 to 50 % (xcalib -co 70 -a) .

I use OpenBox and tint2. My system use between 3.9 to 6 Watts with Chromium and some tabs,Geany, WiFi streaming HEVC/H.265 video and play it with mpv (hardware accelerate).

I am using the last bios without any trouble.

Last edited by SheepOnMeth (2015-12-14 21:50:48)

zetxx · 2015-12-14 21:48:40

did anyone got this error on bios reverting
http://i.imgur.com/OO5cYot.png

davidgf · 2015-12-14 23:06:19

Ugh looks ugly. What happened & how? Have you been able to fix it?

dedsm · 2015-12-14 23:39:56

After struggling to get Windows installed just to run the CABC disabler, I can confirm (as the rest of the people in github) it works!

Maybe it's important to note that you need the Intel driver installed in windows for the program to run, else it won't be able to write the firmware.

davidgf · 2015-12-14 23:50:37

Hey can you explain a bit how this automatic brightness thing works? I mean, I haven't noticed it I think, so I'm a bit curious about it...
It might be cool to try to reproduce it and see how is actually disabled, but I guess if it goes through the driver it will be hard to trace and create a driver for it on linux.

friimaind · 2015-12-15 08:25:45

davidgf wrote:

Hey can you explain a bit how this automatic brightness thing works? I mean, I haven't noticed it I think, so I'm a bit curious about it...
It might be cool to try to reproduce it and see how is actually disabled, but I guess if it goes through the driver it will be hard to trace and create a driver for it on linux.

I think that this article could be useful

zetxx · 2015-12-15 09:48:53

davidgf wrote:

Ugh looks ugly. What happened & how? Have you been able to fix it?

i didnt fix it, after downgrading bios to 1.0.5 i had this error message, after that my screen dissipated and fan was running on 100 % for 2 min while bios downgraded, after that the pc restarted and voila ... i thing that this is an error because of intel managment engine to downgrade its firmware, is after little searching i thing its ok

dedsm · 2015-12-15 10:09:22

davidgf wrote:

Hey can you explain a bit how this automatic brightness thing works? I mean, I haven't noticed it I think, so I'm a bit curious about it...
It might be cool to try to reproduce it and see how is actually disabled, but I guess if it goes through the driver it will be hard to trace and create a driver for it on linux.

In https://github.com/advancingu/XPS13Linux/issues/2 there is a huge history about the problem, including a website you can use to test it and a video showing it, and also the fix:

http://tylerwatt12.com/dc/
https://vid.me/8Ger

the fix is permanent, so you login in windows, execute the program, and the display will never do that again, unless you reverse it, the executables for enabling/disabling the CABC are there.

Last edited by dedsm (2015-12-15 10:11:28)

davidgf · 2015-12-15 19:07:20

Saw the video, definetly not affected ;D
BTW anything new on 4.4.0-rc5?

zetxx · 2015-12-15 19:23:32

davidgf wrote:

BTW anything new on 4.4.0-rc5?

nothing new

friimaind · 2015-12-16 09:47:10

Hi guys, I'm trying to install 4.4-rc* on my XPS 9350 256GB FHD but I have a big problem: when I select any 4.4-rc* kernel on grub i receive a black window on boot.
I googled a lot and I tried various fix but I can't figure out how can I debug the situation because I don't have any message on the screen (I tried to close the monitor, ctrl+alt+t, ctrl+f1..).
I think that is related to the video driver, do you have any ideas?

Last edited by friimaind (2015-12-16 09:47:28)

ksim · 2015-12-16 10:03:25

friimaind wrote:

Hi guys, I'm trying to install 4.4-rc* on my XPS 9350 256GB FHD but I have a big problem: when I select any 4.4-rc* kernel on grub i receive a black window on boot.
I googled a lot and I tried various fix but I can't figure out how can I debug the situation because I don't have any message on the screen (I tried to close the monitor, ctrl+alt+t, ctrl+f1..).
I think that is related to the video driver, do you have any ideas?

try to add nvme module to your modules in mkinitcpio.conf .

friimaind · 2015-12-16 10:12:01

ksim wrote:

friimaind wrote:
Hi guys, I'm trying to install 4.4-rc* on my XPS 9350 256GB FHD but I have a big problem: when I select any 4.4-rc* kernel on grub i receive a black window on boot.
I googled a lot and I tried various fix but I can't figure out how can I debug the situation because I don't have any message on the screen (I tried to close the monitor, ctrl+alt+t, ctrl+f1..).
I think that is related to the video driver, do you have any ideas?
try to add nvme module to your modules in mkinitcpio.conf .

Thank you ksim, i tried to add nvme and i915 module to "/etc/initramfs-tools/modules" and "sudo update-initramfs -u -k all" but unfortunately the problem is still there
Is this the same?

Last edited by friimaind (2015-12-16 10:12:57)

ksim · 2015-12-16 10:43:27

friimaind wrote:

Thank you ksim, i tried to add nvme and i915 module to "/etc/initramfs-tools/modules" and "sudo update-initramfs -u -k all" but unfortunately the problem is still there
Is this the same?

looks like you are using Ubuntu/debian, do you have i915 firmware files in your initramfs?

friimaind · 2015-12-16 13:34:19

ksim wrote:

friimaind wrote:
Thank you ksim, i tried to add nvme and i915 module to "/etc/initramfs-tools/modules" and "sudo update-initramfs -u -k all" but unfortunately the problem is still there
Is this the same?
looks like you are using Ubuntu/debian, do you have i915 firmware files in your initramfs?

Yes, sorry for the inaccuracy, i'm on Ubuntu 15.10 and I added i915 in "/etc/initramfs-tools/modules".
On kernel.log I see this error: i915 0000:00:02.0: registered panic notifier

vilavil · 2015-12-16 13:45:29

Did you upgrade your BIOS to 1.1.7? I've been getting a black screen on most boots since I upgraded that. Booting only works 1 time out of 3 roughly.

I tried posting in the Dell Support Forums concerning the NVME problems with the battery life in Linux but no answer.

friimaind · 2015-12-16 13:46:26

vilavil wrote:

Did you upgrade your BIOS to 1.1.7? I've been getting a black screen on most boots since I upgraded that. Booting only works 1 time out of 3 roughly.
I tried posting in the Dell Support Forums concerning the NVME problems with the battery life in Linux but no answer.

Yes I'm on the latest bios.

SheepOnMeth · 2015-12-16 16:32:43

@friimaind Your issue is more linked to Grub/Ubuntu/Debian boot configuration and how you compile the kernel that Archlinux and the XPS13. You should try the Ubuntu forum.Specify the rc that you are trying to use.

zetxx · 2015-12-16 21:32:28

dedsm wrote:

zetxx wrote:
actually there is a fix: https://github.com/advancingu/XPS13Linu … -160201004
yes, I noticed, sadly I removed all traces of windows and also have a LUKS full disk encryption with LVM inside, I don't think that plays too well with resizing, I'll try to install Windows 10 on an external drive and test, I'll post my findings here.

then let me know did you managed to install it

Last edited by zetxx (2015-12-17 09:33:34)

Arch Linux

#151 2015-12-14 10:24:16

Re: Dell XPS 13 9350 Late 2015

#152 2015-12-14 10:28:09

Re: Dell XPS 13 9350 Late 2015

#153 2015-12-14 13:57:41

Re: Dell XPS 13 9350 Late 2015

#154 2015-12-14 14:09:31

Re: Dell XPS 13 9350 Late 2015

#155 2015-12-14 14:19:15

Re: Dell XPS 13 9350 Late 2015

#156 2015-12-14 18:56:59

Re: Dell XPS 13 9350 Late 2015

#157 2015-12-14 19:16:01

Re: Dell XPS 13 9350 Late 2015

#158 2015-12-14 21:48:40

Re: Dell XPS 13 9350 Late 2015

#159 2015-12-14 23:06:19

Re: Dell XPS 13 9350 Late 2015

#160 2015-12-14 23:39:56

Re: Dell XPS 13 9350 Late 2015

#161 2015-12-14 23:50:37

Re: Dell XPS 13 9350 Late 2015

#162 2015-12-15 08:25:45

Re: Dell XPS 13 9350 Late 2015

#163 2015-12-15 09:48:53

Re: Dell XPS 13 9350 Late 2015

#164 2015-12-15 10:09:22

Re: Dell XPS 13 9350 Late 2015

#165 2015-12-15 19:07:20

Re: Dell XPS 13 9350 Late 2015

#166 2015-12-15 19:23:32

Re: Dell XPS 13 9350 Late 2015

#167 2015-12-16 09:47:10

Re: Dell XPS 13 9350 Late 2015

#168 2015-12-16 10:03:25

Re: Dell XPS 13 9350 Late 2015

#169 2015-12-16 10:12:01

Re: Dell XPS 13 9350 Late 2015

#170 2015-12-16 10:43:27

Re: Dell XPS 13 9350 Late 2015

#171 2015-12-16 13:34:19

Re: Dell XPS 13 9350 Late 2015

#172 2015-12-16 13:45:29

Re: Dell XPS 13 9350 Late 2015

#173 2015-12-16 13:46:26

Re: Dell XPS 13 9350 Late 2015

#174 2015-12-16 16:32:43

Re: Dell XPS 13 9350 Late 2015

#175 2015-12-16 21:32:28

Re: Dell XPS 13 9350 Late 2015

Board footer