Screen Resolution problem in openSUSE 11.3 GNOME

When i some times start up the system the screen switches to a lower resolution.
Then when i restart my system and it switches to 1152x864
What can be causing this problem and how do we root out this ?

I don’t have a definite answer for the cause of this strange behaviour, but it may be possible to coax the preferred resolution every time with a simple edit to /etc/X11/xorg.conf.d/50-monitor.conf

You can try adding your preferred resolution to this configuration file

Option "PreferredMode" "1152x864"

You’ll need to ediit this file with root privileges

gnomesu gedit /etc/X11/xorg.conf.d/50-monitor.conf

Be careful with your editing, and restart the X-server after you’ve finished with CTRL-ALT-Backspace (twice).

See how that goes.

First of all i thank you very much for your reply
The edit and x-server restart as well as multiple restarts of OS did not help
The edit was made as follows
After the edit failed to work i removed the entry again and a OS restart later 1152x864 is available.

The following question might have been the cause of the switching resolution i am facing:-
I actually use bleachbit regularly and it has a X11 cleaning menu.Should i avoid using that menu ?Can that cause this problem?

Section "Monitor"
  Identifier "Default Monitor"

  ## If your monitor doesn't support DDC you may override the
  ## defaults here
  #HorizSync 28-85
  #VertRefresh 50-100

  ## Add your mode lines here, use e.g the cvt tool
Option "PreferredMode" "1152x864"
EndSection

I’m not sure what the cause of your problem was. In general, the Xorg server is capable of autodetecting the native resolution of your display at startup, without the help of any manual config entries. Anyway, looks as if your problem is sorted. :slight_smile: