Bug#585600: linux-image-2.6.32-5-686: KMS does not detect display resolutions
On Sat, Jun 12, 2010 at 09:02:33AM +0200, Olivier Berger wrote:
> Hi.
>
> Since the latest radeon X driver has entered testing, KMS is enabled on my machine, which results in display resolution badly configured with my monitor. I used to have 1280x1024 and no longer have (the fallback 1024x768 is set).
>
> The dmesg messages about EDID being wrong show the problem.
>
> Maybe this is linked to a KVM display switch being present ?
>
> In any case, this is all fine again if I change modesetting to off in /etc/modprobe.d/radeon-kms.conf.
>
> Thanks in advance.
>
> Best regards,
>
FYI, the following workaround allowed me to keep using 1280x1024. I've added the following lines to /etc/gdm/Init/Default :
xrandr --newmode "1280x1024_60.00" 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
xrandr --addmode VGA-0 1280x1024_60.00
Now, I can select the preferred mode with gnome-display-properties and it is kept across session restarts.
Hope this helps.
Best regards,
--
Olivier BERGER
(OpenPGP: 1024D/B4C5F37F)
http://www.olivierberger.com/weblog/
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