Works after kernel upgrade to 2.6.20-2-generic. But I had to go back to my old settings in xorg.conf:
Section "Device" Identifier "Ati Mobility Radeon X1400" Driver "fglrx" Option "ForceMonitors" "lvds,crt1" Option "Centermode" "off" Option "VideoOverlay" "on" Option "OpenGLOverlay" "off" Option "OverlayOnCRTC2" "0" Option "PseudoColorVisuals" "off" Option "HSync2" "31-64" Option "VRefresh2" "56-75" Option "UseFastTLS" "2" #Option "DesktopSetup" "horizontal" #Option "EnablePrivateBackZ" "on" Option "Mode2" "1280x1024,1024x768,800x600,640x480" Option "TexturedVideo" "on" BusID "PCI:1:0:0" EndSection
Works after kernel upgrade to 2.6.20-2-generic. But I had to go back to my old settings in xorg.conf:
Section "Device" uals" "off" ackZ" "on" 1024x768, 800x600, 640x480"
Identifier "Ati Mobility Radeon X1400"
Driver "fglrx"
Option "ForceMonitors" "lvds,crt1"
Option "Centermode" "off"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
Option "OverlayOnCRTC2" "0"
Option "PseudoColorVis
Option "HSync2" "31-64"
Option "VRefresh2" "56-75"
Option "UseFastTLS" "2"
#Option "DesktopSetup" "horizontal"
#Option "EnablePrivateB
Option "Mode2" "1280x1024,
Option "TexturedVideo" "on"
BusID "PCI:1:0:0"
EndSection