[Not Solved Anymore] 2.6.32, KMS and Intel

rent0n · 2010-01-01 13:49:24

Hi,
I have a GM965 Intel graphics card and I'm having some issues with the latest kernel update.

I was used to set the framebufffer resolution by appending to the kernel line:

vga=773

to obtain a 1024x768 resolution (although my native resolution is 1280x800, it was fine).

How am I supposed to obtain a boot process at the right resolution now that, with kernel 2.6.32, KMS has been enabled by default on Intel graphics cards?

Currently, if I leave vga=733, it starts 1024x768 and when udev loads there's a blank screen and then change resolution to 1280x800.
On the contrary if I remove the vga option from the kernel line I have a text boot and then blank screen and new 1280x800 change in resolution when udev starts. Is this the behaiviour KMS should have?

Any help/hints would be much appreciated, thanks!

Last edited by rent0n (2010-02-11 19:59:42)

Archiee · 2010-01-01 14:41:39

Hmm.. maybe you can try to add "i915.modeset=1" to your "kernel"line in GRUB.
from http://wiki.archlinux.org/index.php/Int … Setting.29

rent0n · 2010-01-01 17:05:25

Yes, thank you.
Following the procedure on the wiki partially solves the problem.
However no arch logos for me at boot process anymore...:(

EDIT: most importantly I'm having issues while typing on ttys: it seems that key pressure is not detected on the first time. Not sure this is related actually...

rent0n · 2010-01-01 17:51:23

Ok, I found the solution.
The big problem is KMS indeed, and disabling it (like in 2.6.31) solves both the resolution problem and the strange problem with typing in consoles (ttys).

Basically, I've added

i915.modeset=0 vga=773

to the kernel line in menu.lst.

Also check that you don't have the intel_agp i915 module in the MODULES section on /etc/mkinitcpio.conf and run:

sudo mkinitcpio -p kernel26

Reboot and everything sholud be fine.

rent0n · 2010-02-11 20:03:57

After last xf86-video-intel this method no longer works because KMS is now mandatory on Intel drivers.
As a result, I've got some strange changes in resolution and no more arch logos during boot, but a native 1280x800 resolution in consoles (ttys).

The big problem is that in ttys my keyboard behaves very badly: sometimes a pressed key is not recognized and I have to press it again; actually I can't even login on ttys because I probably make errors I can't see when typing my password. No problems at all in X.

Any help please?

EDIT: Apparently, the strange keyboard behaviour only affects tty1 but not the others ttys. Very, very strange...

Last edited by rent0n (2010-02-11 20:16:25)

Cdh · 2010-02-11 21:00:30

I had the keyboard problem only while X was running. At the moment it seems to be gone. But maybe I just don't use tty1.

davidgurvich · 2010-02-12 00:55:30

I MUST add nomodeset to the grub kernel line with intel i830 graphics. Without that the screen just goes black. I wonder, if I booted into Xorg directly what would happen?

rent0n · 2010-02-13 08:22:40

News!

Thanks to this thread, I discovered that my problem seems to be caused by SLiM: http://developer.berlios.de/bugs/?func= … up_id=2663

They will provide a patch quite soon I think!

EDIT: And now we also have an Arch Linux bug report: http://bugs.archlinux.org/task/18313

Last edited by rent0n (2010-02-13 08:27:31)

Arch Linux

#1 2010-01-01 13:49:24

[Not Solved Anymore] 2.6.32, KMS and Intel

#2 2010-01-01 14:41:39

Re: [Not Solved Anymore] 2.6.32, KMS and Intel

#3 2010-01-01 17:05:25

Re: [Not Solved Anymore] 2.6.32, KMS and Intel

#4 2010-01-01 17:51:23

Re: [Not Solved Anymore] 2.6.32, KMS and Intel

#5 2010-02-11 20:03:57

Re: [Not Solved Anymore] 2.6.32, KMS and Intel

#6 2010-02-11 21:00:30

Re: [Not Solved Anymore] 2.6.32, KMS and Intel

#7 2010-02-12 00:55:30

Re: [Not Solved Anymore] 2.6.32, KMS and Intel

#8 2010-02-13 08:22:40

Re: [Not Solved Anymore] 2.6.32, KMS and Intel

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