Thanks, can you also attach the output from 'lspci -vvnn' and 'xrandr
--verbose'?
Also, could you attach two Xorg.0.log's - one from when you're booted up
properly in a high resolution, and a second from after you've blanked
the screen at the lower resolution? (This second one can be gotten
after rebooting - it's named Xorg.0.log.old). Basically, I want to see
if anything is written to the log when you do the resolution switch.
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: New => Incomplete
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[RV250 Mobility FireGL 9000] Black screen on lower resolutions on Dell Latitude
D600
https://bugs.launchpad.net/bugs/311910
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