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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - HDMI audio on ati7750 choppy with ALSA multi-channel apps"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77677#c19">Comment # 19</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - HDMI audio on ati7750 choppy with ALSA multi-channel apps"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77677">bug 77677</a>
from <span class="vcard"><a class="email" href="mailto:adf.lists@gmail.com" title="Andy Furniss <adf.lists@gmail.com>"> <span class="fn">Andy Furniss</span></a>
</span></b>
<pre>I've just changed my HD4890 for a R9 270x, which is roughly AIUI a 7870 and
have hit this issue.
Testing with mplayer I do have some differences, but would probably get duped
if I posted a new bug so -
Kernels tested drm-fixes -
3.15.0-rc2-41381-gabaafc0
3.13.0-rc6-14283-g61ef8be
3.12.0-rc7-01267-g3d3b78c
Both working and non working cases show the same alsa h/w params which is the
same as my old card which always worked eg.
access: RW_INTERLEAVED
format: S16_LE
subformat: STD
channels: 2
rate: 48000 (48000/1)
period_size: 1024
buffer_size: 16384
With mplayer as long as there is video it seems to work OK (20 mins longest
test so far).
Pure audio files or "working" video played with -vc null always fail and sound
like the mp3.
-vo null without -vc null always works OK.
Only s/w decode works, UVD will produced trashed sound, so if that's the
default for xbmc it could be something worth testing.</pre>
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