F11: Why is Xorg failing to allow 1600x1200 resolutions?

James Wilkinson fedora at aprilcottage.co.uk
Mon Aug 24 18:59:21 UTC 2009


Daniel B. Thurman wrote:
> On F8/9/10, I was able to drop in my xorg.conf
> file into /etc/X11 directory and was able to get
> the X display to recognize the Monitor type and
> get 1600x1200 resolution, but for some reason,
> I am not able to do this with F11.
> 
> My montor is a Hitachi CM715, and my onboard
> video is an Intel 82945G/GZ Integrated graphics
> controller.
> 
> I have tried system-config-display & it seems
> to limit my resolution to 1280x1024.
> 
> How can I resolve this problem?

This is probably because you’ve got kernel mode-setting turned on. The
graphics mode setting (including the resolution) happens very early on
in the boot sequence, before / is mounted. So it can’t read your
xorg.conf file.

I’m in a very similar situation, and filed
https://bugzilla.redhat.com/show_bug.cgi?id=512602 over a month ago.

For the time being, live with 1280x1024 or put nomodeset into the kernel
command line (in grub) – unless anyone knows of a way of configuring KMS
resolution from within grub?

Hope this helps,

James.

-- 
E-mail:     james@ | ... clueless he is not. He's just selective about which
aprilcottage.co.uk | clues to pay attention to.
                   |     -- Shmuel (Seymour J.) Metz




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