Arch Linux

freezway

Member

Registered: 2010-06-16

Posts: 15

[SOLVED] Cant get correct X resolution, monitor not correctly detected

I just installed arch, after moving from Ubuntu (upgrades NEVER worked) and after battling with getting HAL and sudo to work i finally can get into a GUI! The problem is I cant get more than 1024x768 on my 1920x1080 monitor. I have an nvidia GTS 250 with the nvidia driver installed (via pacman -S nvidia).

nvidia-xconfig didn'y work and only allows 640x480. so I looked into editing xorg.conf. my xorg.conf is here The DisplaySize values i got by dividing my resolution by 96 and converting to millimeters.

Here is my Xorg.0.log

and i am suspisious of this part:

 (II) Jun 16 02:36:08 NVIDIA(0): Assigned Display Device: CRT-0
(WW) Jun 16 02:36:08 NVIDIA(0): No valid modes for "1920x1080"; removing.
(WW) Jun 16 02:36:08 NVIDIA(0): 
(WW) Jun 16 02:36:08 NVIDIA(0): Unable to validate any modes; falling back to the default mode
(WW) Jun 16 02:36:08 NVIDIA(0):     "nvidia-auto-select".
(WW) Jun 16 02:36:08 NVIDIA(0): 
(II) Jun 16 02:36:08 NVIDIA(0): Validated modes:
(II) Jun 16 02:36:08 NVIDIA(0):     "nvidia-auto-select"
(II) Jun 16 02:36:08 NVIDIA(0): Virtual screen size determined to be 1024 x 768
(**) Jun 16 02:36:08 NVIDIA(0): DPI set to (96, 96); computed from "DPI" X config option

note, I did edit xorg.conf by hand.

UPDATE! Its defienatly the monitor not being detected correctly... i pulled up a 1440x900 and it works fine... Still would like it to work with my 1080p one.

UPDATE2: Turns out i needed a DVI cable... sending edid data over the vga calbe is sketchy... unfortunately the places near me only sell $22 DVI cables...

Last edited by freezway (2010-06-17 01:13:56)