Comment # 155
on bug 66963
from Paul Bodenbenner
(In reply to comment #153) > I've got quite a few r6xx cards, however, all of the cards I have access to > work fine with dpm. Unfortunately, r6xx cards are five generations old, so > it's much harder to find people that remember or documents describing the > details and quirks of dpm on these asics so even if I managed to get a > problematic card, I'm not sure how much luck I'd have. Ok, thanks for the clarification! (In reply to comment #154) > With the people getting hangs and GPU resets, with DPM on: are you using KDE > or GNOME? > > I've noticed problems with KDE and the rv6xx and sometimes doing a soft > power cycle of laptop will result in the display hanging when it attempts to > set up kernel mode setting (KMS). I am not sure if there are also hangs, but I'm using GNOME Shell 3.10 by getting my previous described failures. Also I have to use "acpi_sleep=nonvs" as kernel parameter, otherwise system will reboot immediately instead of "trying" to wake up. With catalyst driver this worked well though.
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