This is on a Thinkpad T30 (Radeon Mobility 7500), running Fedora Core 6 test 3, i386. xorg-x11-drivers-7.1-3 xorg-x11-drv-ati-6.6.2-4.fc6 Dual-head mode works but is very unstable, will typically not run for more than 10 or 20 minutes, then we get a hard freeze, I'm attaching xorg.conf file. A lot of other Fedora users are reporting similar hard lockups, though not specifically related to dual-head, so this may not be specific to dual-head support. In my particular case, dual-head makes the freeze happen very quickly. Built-in LCD support is very stable, even with DRI/Aiglx/Compiz. I've had a few freezes as well when running an external CRT in 1600x1200 (with the built-in LCD disabled), but not frequently. is there any way to obtain more useful debug information when this occurs ? We hate filing bugs that just say "XXX doesn't work"...
Created attachment 7404 [details] Configuration for dual-head mode
Discussions on reported symptoms and configs : http://www.redhat.com/archives/fedora-devel-list/2006-October/msg00343.html
Please try xf86-video-ati 6.6.3 or current git.
Excellent, xf86-video-ati 6.6.3 seems to fix the problem. Does this make sense in light of the 6.6.2 to 6.6.3 ChangeLog ? I'll close the bug tomorrow after some more testing.
6.6.3 seems stable. Closing.
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