Arch Linux

moormaster

Member

Registered: 2009-11-09

Posts: 15

Lenovo T400 (i965): GDM & qemu native resolution & fullscreen -> blank

Hello,

does anyone know the problem or even a solution for the following issue:

I am using archlinux on a lenovo thinkpad t400. I boot with the onboard Intel i965 graphics card into Gnome (classic mode) using GDM.

I run qemu VM (WindowsXP) using the following command:

qemu -m 1024 -vga std -drive cache=writeback,file=WindowsXP.hdd

The native resolution of my T400  is 1440x900. I can choose this resolution in the Windows guest but as soon as I switch qemu to fullscreen mode (ctrl+alt+F) the screen goes blank and i need to restart gdm to make X work again.

After some experiments I think that GDM causes this problem somehow. If i start a naked XServer by running:

$ X
$ export DISPLAY=:0.0
$ metacity &
$ gnome-session

I noticed that qemu works fine in this server even if i switch a guest to fullscreen which uses the native resolution of my notebook.

Any ideas what GDM is doing different?

Last edited by moormaster (2012-09-09 15:12:22)