Home

Wed, Feb. 6th, 2008, 10:55 am
Screen Resolution Broken with X11

So I just got a new wide screen monitor. It's an HP L2045w (20" widescreen). My video chipset (on-board) is an Intel 82845G/GL[Brookdale-G]/GE Chipset. The native resolution of the screen should be 1680x1050 at 60Hz.
However, on Fedora 7 I did a "system-config-display --reconfig" and the Hz was stuck at 75Hz, which only allowed me to choose 1600x1200 virtual with 1280x1024 actual, or 1280x1024 actual without virtual.
After some hunting around it seems like these onboard chipsets don't "know" about widescreen support natively. Intel relies on the vendor to suppy their own BIOS patches to support modes not natively in the vBIOS. This site might help: http://www.geocities.com/stomljen/ and there's some discussion here http://groups.google.com/group/915resolution and https://bugs.freedesktop.org/show_bug.cgi?id=643
However, just to make it VERY short... there's an intel experimental xorg server that provides the native modes needed. Instead of using the 'i810' driver, try using the 'intel' driver. First ALT-TAB-F1 to a console, login as root. Go into runlevel 3, by typing "init 3". Then when you run "system-config-display --reconfig" edit the "Video Card" under the "Hardware" tab to select the "Intel - Experimental modesetting driver for Intel integrated graphics chipsets". Don't forget the change your monitor type and hard code the native resolution for your monitor. Finally go back into runlevel 5 by typing "init 5".