[Bug 86351] HDMI audio garbled output on Radeon R9 280X

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=86351

--- Comment #3 from Christian Birchinger <joker at netswarm.net> ---
Retried with kernel 3.18.2:

If i constantly open new windows or constantly switch virtual desktops really
fast or do other things that keeps the desktop busy, the sound plays back
normaly.

As soon as the desktop is "idle" the sound becomes garbled again.

Playing a video also has working sound. However only stereo seems to work.
There's not enough for passthru Dolby D. The receiver gets a Dolby D link
from time to time but loses it again shortly after.

As if theres not enough bandwidth reserved for audio during desktop "idle time"
or some weird power save mode.

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