[Intel-gfx] Lenovo X60 with i945: Setting resolution in GRUB to 1024×768

[Paul Menzel]

Am Sonntag, den 18.01.2015, 16:56 -0500 schrieb Felix Miata:
> Paul Menzel composed on 2015-01-18 12:20 (UTC+0100):
> 
> > on the Lenovo X60 with i945 graphics (and vendor BIOS), for using
> > fastboot, that means to avoid a modeset, I want to set the desired
> > resolution in GRUB using the option `GRUB_GFXMODE=1024x768` in
> > `/etc/default/grub`.
> 
> Making a change in /etc/default/grub does not take effect until the actual
> Grub menu is rebuilt. It's a config file, not a menu file.

I know and ran `sudo update-grub` afterward. Thank you for the hint
though.

> > Unfortunately that does not have an effect and the
> > resolution is only 640a×480.
> 
> IIRC, I've solved this problem in the distant past by in BIOS setup changing
> memory size reserved for video controller from 1M to 8M.

Unfortunately I was unable to find such a configuration option in the
BIOS menu.

> > The GRUB developer told me that this is likely a Video BIOS issue.
> 
> > Am I out of luck or do you know of possible solutions or do you have
> > pointers how to debug this? GRUB’s `vbeinfo` lists the resolution of
> > 1024×768.
> 
> GRUB_GFXMODE=1024x768 assumes you are using Grub2. In Grub legacy what you
> need is video=1024x768 or video=1024x768 at 60 on the kernel cmdline. I have
> multiple i945G systems using both vga=1024x768 at 60 and Grub Legacy, but none
> Lenovo.

Good to know. Hopefully it can be solved in GRUB 2.

> Which distro are you using?

Debian Jessie/testing


Thanks,

Paul
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