Comment 12 for bug 190506

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Bryce Harrington (bryce) wrote :

My suspicion here is that the LVDS doesn't have its preferred mode set properly, and so gdm is randomly picking 1280x1024 from that. But that's just a guess. Most likely this requires a quirk.

The way to test this theory would be to add the following to your xorg.conf:

Section "Monitor"
        ...
        Option "PreferredMode" "1680x1050"
EndSection

If that makes everything work properly for you, then I'll look into getting a quirk added for it.