[Bug 47519] Xorg hangs in ioCtl in path of RADEONDownloadFromScreenCS

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Mar 20 04:07:12 PDT 2012


--- Comment #8 from Michel Dänzer <michel at daenzer.net> 2012-03-20 04:07:12 PDT ---
> Restarting X the complete X server does hang at the main loop (looks like 47512
> - but i don't know if they are related at all).

Might well be one and the same problem.

(In reply to comment #4)
> If i remove those config or set all to "on" it happens really frequently
> (enough to make me report this one here to seek help :-) ).

Option "AccelDFS" has no effect with KMS (the log file incorrectly claims
otherwise). It might be interesting to narrow down which of the other three
options really make a difference for you. My first guess would be page

(In reply to comment #5)
> dmesg

Did you capture this after a hang occurred? If so, it looks like we can rule
out the hangs being due to GPU lockups.

Does booting with radeon.msi=0 on the kernel command line work around the

(In reply to comment #7)
> I suffer this one since i'll changed from lucid to oneiric, where gnome2 was
> removed and i did switch to gnome3.

Was lucid even using KMS yet?

> Because it did freeze very often, i switched to lxde where is does not seem to
> happen

Not even for OpenGL apps? Is the GNOME3 fallback mode affected now?

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