[Bug 78453] [HAWAII] Get acceleration working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78453

--- Comment #115 from Kai <kai at dev.carbon-project.org> ---
(In reply to comment #106)
> Playing streams (live and recorded broadcasts) from Twitch with this setup
> is, however, neigh impossible. With the open driver and GLAMOR acceleration,
> X uses 80 % CPU time on one core and the video becomes a dia show. The Flash
> plugin is at 40 % CPU time (different core), but that's roughly the same as
> with fglrx. (For reference: my CPU is an Intel Core i7-3770K.)

After some further testing yesterday I could only reproduce the stalling of X
with "recorded brodcasts" on Twitch. It doesn't matter what stream quality you
pick (if you're patient enough to get that menu open). X starts hogging all
resources on one CPU core as soon as you load any recording (I tried four
different recordings). Live broadcasts/streams worked normally yesterday
afternoon/evening and today.


(In reply to comment #114)
> (In reply to comment #108)
> > Btw, watching a video on Twitch spams my Xorg.0.log with *tons* of:
> > > [ 21013.158] (WW) RADEON(0): radeon_dri2_flip_event_handler: Pageflip completion event has impossible msc 2822274 < target_msc 2822275
> 
> These are fixed in drm-fixes-3.16, but that hasn't been merged into
> drm-next-3.17-wip yet.

Ah, ok. I found
<http://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes-3.16&id=f53f81b2576a9bd3af947e2b1c3a46dfab51c5ef>.
Is that the correct commit for Hawaii? Doesn't look like the appropriate commit
to me (so much "Evergreen" everywhere), but it was the only one a search for
radeon_dri2_flip_event_handler yielded.

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