Dell Latitude CPx J-Series

From openSUSE

Making X-Windows Work in 1024x768

After installing SuSE 10.0 OSS you have wondered why you just can't switch to a resolution different from 800x600 (for example it would be nice to use the full physical resolution of the display)? I have too.

To solve this you have to do the following:

1. Edit the file /boot/grub/menu.lst (You'll have to do this as root). Change the parameter vga=0x314 to vga=0x317.
2. run the command mkinitrd -s 1024x768.

After a reboot the system should show up with a full-sized boot-screen and a full-sized X-Windows. You might have to change the resolution of your X-Windows manually.

If you want to use a different resolution (e.g. for using an external monitor) you need to replace the 0x317 with the corresponding VESA-mode and the 1024x768 with the actual resolution.

Don't ask me why you have to use the same resolution with the framebuffer and the X-Windows-system. Seems to be a bug in the driver or a flaw in the graphicsadapter. So you'll have to "make it so".