The screen resolution is 1024x768 after boot. But after I press "Ctrl+Alt+Backspace", the screen resolution goes down to 800x600. I have tried many times, but the problem is just there. My video card is "ATI Technologies Inc Radeon R250 [Mobility FireGL 9000]" and I am using "ati" driver. I have tried to use "vesa" driver, the problem disappears when using that driver. Reproducible: Always
attach the file /var/log/Xorg.0.log before you press Ctrl+Alt+Backspace and then another one for after you do it.
Created attachment 127282 [details] X.org.0.log before Ctrl-Alt-Backspace
Created attachment 127283 [details] X.org.0.log after Ctrl-Alt-Backspace
Looks to me like a bug in the radeon driver as it's detecting a second monitor attached to your VGA port on the second run. You can override that with the following option in your Device section... Option "MonitorLayout" "LVDS, NONE" But you should log this bug upstream if you really don't have a second monitor connected. It isn't a gentoo fault.
It works. Thanks very mush. But where should I post the problem to? I am just a linux user and do not know exactly where is the homepage of xf86-video-ati.
(In reply to comment #5) > It works. Thanks very mush. > But where should I post the problem to? I am just a linux user and do not know > exactly where is the homepage of xf86-video-ati. Chen, http://bugs.freedesktop.org/, search before you file a bug there. Or you write to the xorg-driver-ati@lists.x.org mailing list.
This bug should properly be fixed with newer versions of the -ati driver. If it's not the case, please open a bug in FreeDesktop's bugzilla like Christian suggested in comment #6. Thanks