ATi Graphics Cards
If you have an ATi graphics card, you may experience problems such as a blank screen in the preview window or when the screensaver starts. The following configuration has been known to help with these issues.
Add the "VideoOverlay" and "OpenGLOverlay" lines to the Device section for you Radeon card in /etc/X11/xorg.conf. For example:
Section "Device" Identifier "Videocard0" Driver "radeon" Option "VideoOverlay" "on" # add this line Option "OpenGLOverlay" "off" # add this line VendorName "Videocard vendor" BoardName "ATI Radeon X1300" EndSection
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