Public bug reported:
Since the upgrade to Ubuntu 8.10, I can no longer switch to lower
resolutions than 1400x1050 on my Dell Latitude D600 laptop when using
the Open Source ATI Radeon driver in X. When switching to a lower
resolution the screen goes black.
Lower resolutions work without problems on the terminal screens (CTRL+F1
to CTRL+F6), they also work without problems in X when using the vesa
driver.
I tried adding the Option "NoDCC" to xorg.conf, but Xorg.0.log showed
that this option was ignored. Adding the Option "IgnoreEDID" also didn't
make a difference, but I'm also not sure if it was actually used.
Attached is my current xorg.log.
** Affects: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided
Status: New
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Black screen on lower resolutions on Dell Latitude D600 / Radeon RV250
(Mobility FireGL 9000)
https://bugs.launchpad.net/bugs/311910
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