[SOLVED]Unknown boot option `radeon.modeset=0'

Nixxx · 2009-10-09 06:36:46

Hi All. I've just installed newest kernel from testing repo (2.6.31). After that on my MobilityRadeon X1400 the 3D acceleration stopped working (I've used "early start method" from ArchWiki). So i've set /boot/grub/menu.lst a follows:

# (0) Arch Linux
title Arch Linux
root (hd0,1)
kernel /boot/vmlinuz26 root=/dev/disk/by-uuid/ad5d0eae-969d-4e29-a98e-925480dc4519 radeon.modeset=0 ro quiet vga=838
initrd /boot/kernel26.img

And during the reebot i can see: Unknown boot option `radeon.modeset=0' ignoring

Despite it 3d acceleration works fine after that. Can someone explaint the problem?

Last edited by Nixxx (2009-10-12 23:30:58)

Zariel · 2009-10-09 07:22:00

Did you recompile your initramfs with the radeon module in after you updated ?

jauntale · 2009-10-09 08:53:44

This is a long shot - as the ati kms is enabled try to remove "vga=838".

shining · 2009-10-09 08:59:32

Actually he tried to disable this using radeon.modeset=0 . But I am not sure the "ignoring" message is good.
But I don't really know.

I am curious to know whether he got kms enabled in the end.

AndyRTR · 2009-10-09 09:36:22

Google finds a lot of this warnings but always KMS got disabled in the desired way. Maybe a few cards just make the kernel print out that weird message. "modinfo radeon" says it's a valid paramater and it's working for me.

Nixxx · 2009-10-09 13:43:34

@Zariel: While disabling KMS I've removed "radeon" from MODULES in /etc/mkinitcpio.conf and then I've lunched "mkinitcpio -p kernel26". Shoud I do anything else? As AndyRTR wrote despite this message KMS seems to be disabled bacause the 3D acceleration is working fine - "modinfo radeon" says:

filename: /lib/modules/2.6.31-ARCH/kernel/drivers/gpu/drm/radeon/radeon.ko
license: GPL and additional rights
description: ATI Radeon
author: Gareth Hughes, Keith Whitwell, others.
license: GPL
alias: pci:v00001002d00009714sv*sd*bc*sc*i*
alias: pci:v00001002d00009713sv*sd*bc*sc*i*
alias: pci:v00001002d00009712sv*sd*bc*sc*i*
...
alias: pci:v00001002d00003150sv*sd*bc*sc*i*
depends: drm,ttm,i2c-core,i2c-algo-bit
vermagic: 2.6.31-ARCH SMP preempt mod_unload 686
parm: no_wb:Disable AGP writeback for scratch registers (int)
parm: modeset:Disable/Enable modesetting (int)
parm: dynclks:Disable/Enable dynamic clocks (int)
parm: r4xx_atom:Enable ATOMBIOS modesetting for R4xx (int)
parm: vramlimit:Restrict VRAM for testing (int)
parm: agpmode:AGP Mode (-1 == PCI) (int)
parm: gartsize:Size of PCIE/IGP gart to setup in megabytes (32,64, etc)
(int)
parm: benchmark:Run benchmark (int)
parm: test:Run tests (int)
parm: connector_table:Force connector table (int)

grey · 2009-10-09 14:29:54

I've used "early start method" from ArchWiki

vs.

While disabling KMS I've removed "radeon" from MODULES in /etc/mkinitcpio.conf

Which one is it?

flamelab · 2009-10-09 14:32:12

Add "nomodeset" only.

http://bugs.archlinux.org/task/16149

Last edited by flamelab (2009-10-09 14:32:57)

Nixxx · 2009-10-09 15:27:37

@grey Wiki suggest to add "radeon" to modules in /etc/mkinitcpio.conf so going back to previous configuration I simply removed "radeon". @Flamelab - I will have no opportunity in a few comming days to check if it works can someone verify?

flamelab · 2009-10-09 15:55:21

I had "nomodeset" since I compiled the kernel myself to disable KMS. I have an Nvidia card now, so I don't know if arch devs have changed something more.

Nixxx · 2009-10-09 16:24:46

By the way does anyone know when the kernel 2.6.31 will be moved to "core" ?

Garns · 2009-10-09 19:27:42

Nixxx wrote:

By the way does anyone know when the kernel 2.6.31 will be moved to "core" ?

soon™

grey · 2009-10-09 22:38:58

You can check the arch-dev-public mailing list for stuff like that. It's interesting reading even if you're not running [testing].

damjan · 2009-10-09 23:15:38

AFAIK "radeon.modeset=0" is used only when the radeon module is builtin in the kernel.
and again AFAIK the Arch kernel has it as a module (I run my own kernels).

So you probably need to setup /etc/modprobe.d/something.conf to disable KMS

Nixxx · 2009-10-12 23:30:38

Setting "nomodeset" in the kernel append line works fine. It disables the KMS and returning no errors. For those who have problem it looks like this:

kernel /boot/vmlinuz26 root=/dev/disk/by-uuid/e267419d-eb3d-443c-8aa4-56a9980d28a6 ro vga=838 quiet nomodeset

That's a little bit shame that KMS supporting only 2D with my video card.

flamelab · 2009-10-12 23:41:55

It does support. Wait for Mesa 7.6.

Arch Linux

#1 2009-10-09 06:36:46

[SOLVED]Unknown boot option `radeon.modeset=0'

#2 2009-10-09 07:22:00

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#3 2009-10-09 08:53:44

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#4 2009-10-09 08:59:32

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#5 2009-10-09 09:36:22

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#6 2009-10-09 13:43:34

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#7 2009-10-09 14:29:54

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#8 2009-10-09 14:32:12

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#9 2009-10-09 15:27:37

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#10 2009-10-09 15:55:21

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#11 2009-10-09 16:24:46

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#12 2009-10-09 19:27:42

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#13 2009-10-09 22:38:58

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#14 2009-10-09 23:15:38

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#15 2009-10-12 23:30:38

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

#16 2009-10-12 23:41:55

Re: [SOLVED]Unknown boot option `radeon.modeset=0'

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