My OQO has a VIA chipset. From the hwconf:
class: VIDEO bus: PCI detached: 0 desc: "VIA Technologies, Inc. CX700M2 UniChrome PRO II Graphics" vendorId: 1106 deviceId: 3157 subVendorId: 1106 subDeviceId: 3157 pciType: 1 pcidom: 0 pcibus: 1 pcidev: 0 pcifn: 0
When I install Centos, I default to the vesa driver, and it operates at the monitor's native 800x480. Of course I want more and to physically scroll the screen to see all of the content (the OQO has slide bars on it that do cause the current active window to scroll).
When I change the monitor settings to Generic LCD 1024x768, I get that and 800x600 as an option. If I change the screen resolution to either 800x600 or 1024x768, and log out of X and log back in, my resolution is unchanged at 800x480.
So I tried using the VIA driver that comes with Centos. It does not list the CX700, but, you know, give it a try.
At first I get errors from X when logging in, finally I get changes to occur, but I am still at 800x480. Selecting 800x600 or 1024x768 mkaes no difference. Below is my /etc/X11/xorg.conf. Any ideas on what to try?
# Xorg configuration created by system-config-display
Section "ServerLayout" Identifier "single head configuration" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" EndSection
Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection
Section "Monitor" Identifier "Monitor0" ModelName "LCD Panel 1024x768" ### Comment all HorizSync and VertSync values to use DDC: HorizSync 31.5 - 48.0 VertRefresh 56.0 - 65.0 Option "dpms" EndSection
Section "Device" Identifier "Videocard0" Driver "vesa" EndSection
Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection