Today I started using an older Compaq P110 21" monitor, replacing a severely aging Envision 17". I have an ATI 9600XT graphics card properly configured with hardware accelleration enabled. I am using SUSE 10.0 with the 2.6.13-15.7 kernel and KDE 3.5. I have MPlayer, Kaffeine, and xine installed with all the necessary codecs I need. Prior to changing monitors, everything worked fine.

I updated my xorg.conf file with the new V-sync and H-sync settings and changed the display resolution to 1600x1200 @85Hz, the maximum for this monitor. (I did this manually rather than with Sax because Sax tends to screw up my ATI settings, requiring a manual edit anyway.) Everything still works fine upon initial boot.

However, if my display resolution is ever changed, such as by using CTL-ALT-F5... or by invoking a full-screen graphical game that operates at a lower resolution, after changing back, playing a video (.avi, .mpg, .wmv ... doesn't matter) in any player results in the video being squeezed into the left half of the player window. Going to full-screen doesn't alter this. That is, I can see the entire video, but the player window shows half the screen with the video and the other half black.

Here is my monitor section from xorg.conf

and the screen section

Any ideas?