kernel update broken framebuffer

fukawi2 · 2009-05-24 06:57:59

Hi all,

So I just updated my system, which included a kernel update:

[2009-05-24 15:47] upgraded kernel26 (2.6.29.3-1 -> 2.6.29.4-1)

At bootup though, now my framebuffer resolution is broken. I've been using 773 which is the best match I could find for my 1440x900 LCD:

kernel /vmlinuz26 root=/dev/mapper/vgSys-root ro vga=773 5

Any ideas how I can get my normal 773 resolution back? 80x25 looks absolutely shocking

litemotiv · 2009-05-24 10:19:33

have you tried using vga="ask" to see if the modes were changed?

fukawi2 · 2009-05-25 00:43:00

litemotiv wrote:

have you tried using vga="ask" to see if the modes were changed?

I'll try when I get home and see what that does

fukawi2 · 2009-05-25 10:24:02

Nope -- no dice there. My only options are:

VGA:
80x50
80x30
80x43
80x34
VESA:
640x480
800x600
1024x768
1280x1024
1600x1200
1280x768

Interestingly, I downgraded my kernel back to 2.6.29.3-1 and booting with VGA=ask still gives me the same options, even though I can specify 773 and it works.

Hmmmm, after some quick Googling, it appears 773 is 1024x768x16, and not 1440x900 like I thought. I'll have to have a play with the 1024x768 options available. I still don't understand why 773 would stop working with a kernel upgrade though

Last edited by fukawi2 (2009-05-25 10:24:21)

patroclo7 · 2009-05-25 12:23:59

Perhaps it is the right occasion to play with KMS which perhaps can give you your native resolution.

Last edited by patroclo7 (2009-05-25 12:24:14)

fukawi2 · 2009-05-25 22:48:16

patroclo7 wrote:

Perhaps it is the right occasion to play with KMS which perhaps can give you your native resolution.

KMS is only available for Intel cards isn't it?

fukawi2 ~  $ lspci | grep VGA
01:00.0 VGA compatible controller: VIA Technologies, Inc. K8M800/K8N800/K8N800A [S3 UniChrome Pro] (rev 01)

Arch Linux

#1 2009-05-24 06:57:59

kernel update broken framebuffer

#2 2009-05-24 10:19:33

Re: kernel update broken framebuffer

#3 2009-05-25 00:43:00

Re: kernel update broken framebuffer

#4 2009-05-25 10:24:02

Re: kernel update broken framebuffer

#5 2009-05-25 12:23:59

Re: kernel update broken framebuffer

#6 2009-05-25 22:48:16

Re: kernel update broken framebuffer

Board footer