Description of problem: My System: Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz with Intel Mobile Express GM965/GMA X3100 (256MB) Tungsten Graphics, Inc., Mesa DRI Intel(R) 965GM GEM 20090114 2.1 Mesa 7.5-devel Linux 2.6.29.4-167.fc11.x86_64 x86_64 My 17" LCD display (native res. 1280x1024) is connected to the DVI-I port of my computer, but wrongly detected a boot time. The boot screed (blue progress bar(bubble?)) has a resolution of 800x600 located in the upper lefthand corner of the screen and so is the console screen. The graphical login(kdm) has a resolution of 1024x768 and the session starts with this wrong resolution. If I go to system-setting/display I can see that 2 displays are connected: LVDS1 @ 1024x768 and DVI1 @ 1024x768 If I change the settings for DVI1 to 1280x1024 (and/or deactivate LVDS1) the screen resets to the correct resolution, but after a session log off or a system reset the changes are gone and I have to do the same tedious routine again. Sometimes when changing the resolution the screen stays all black and only recovers when I switch to a console and back again. The console resolution stays all the time at 800x600. Adding the "nomodset" paramater to the kernel boot does not change anything. I have encloed the X.org.log + xrandr output for further reference.
Created attachment 347812 [details] xrandr output
Created attachment 347813 [details] Xorg log
Can I get 'lspci -vn' too? We probably need to quirk this machine as not having LVDS.
Created attachment 348686 [details] lspci output
I managed to work around this problem by adding 'nomodeset' to the kernel line and creating/editing the xorg.conf as below: Section "Device" Identifier "Videocard0" Driver "intel" Option "monitor-LVDS" "LVDS" EndSection Section "Monitor" Identifier "LVDS" Option "Ignore" "True" EndSection Now I have a 1280x1024 at the loging and KDE session, as it should. (see encl. new xrandr.log) glxgears performance also has been enhanced a lot, from previous ~650 fps to now ~1170 fps (same as with Debian Lenny on this machine) I do not get a bootsplash screen though, only a progress at the screen bottom. So 'rhgb' somehow doesn't seem to work with 'nomodeset'
Created attachment 348692 [details] new xrandr output
Adding 'vga=792' to the kernel line too, gives me back the bootsplash screen and a fullscreen terminal console.
Problem resolved the new kernel-2.6.29-5.191.fc11.