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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - HDMI: whining noise (high frequent beep)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99290">99290</a>
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<th>Summary</th>
<td>HDMI: whining noise (high frequent beep)
</td>
</tr>
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<th>Product</th>
<td>PulseAudio
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>alsa
</td>
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<th>Assignee</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>dollinger.florian@gmx.de
</td>
</tr>
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<th>QA Contact</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>lennart@poettering.net
</td>
</tr></table>
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<div>
<pre>When I plug in my TV's HDMI cable into my laptop (Acer Aspire R3 131T, Intel
Audio) i get a really annoying, high frequent whine from the TV speakers.
It doesn't matter how loud the volume is set, the whistle is always the same
until I playback some music or video or something else via HDMI, even if the
music is super silent - the noise disappears as long as the music lasts.
After hitting the pause button, the debug log looks something like that:
--------------------------
D: [alsa-sink-HDMI 0] alsa-sink.c: Cutting sleep time for the initial
iterations by half.
D: [pulseaudio] module-udev-detect.c: /dev/snd/controlC0 is accessible: yes
D: [pulseaudio] module-udev-detect.c: Resuming all sinks and sources of card
alsa_card.pci-0000_00_1b.0.
D: [alsa-sink-HDMI 0] sink-input.c: Requesting rewind due to corking
D: [alsa-sink-HDMI 0] alsa-sink.c: Requested to rewind 76688 bytes.
D: [alsa-sink-HDMI 0] alsa-sink.c: Limited to 6224 bytes.
D: [alsa-sink-HDMI 0] alsa-sink.c: before: 1556
D: [alsa-sink-HDMI 0] alsa-sink.c: after: 1556
D: [alsa-sink-HDMI 0] alsa-sink.c: Rewound 6224 bytes.
D: [alsa-sink-HDMI 0] sink.c: Processing rewind...
D: [alsa-sink-HDMI 0] sink-input.c: Have to rewind 6224 bytes on render
memblockq.
D: [alsa-sink-HDMI 0] sink-input.c: Have to rewind 12448 bytes on implementor.
D: [alsa-sink-HDMI 0] source.c: Processing rewind...
--------------------------
The funny thing is, if I run a "speaker test" (HDMI) on gnomes audio settings,
then the noise doesn't appear again (until i pause another video/music again),
the debug log looks like that when the noise is gone:
--------------------------
D: [alsa-sink-HDMI 0] alsa-sink.c: after: 1632
D: [alsa-sink-HDMI 0] alsa-sink.c: Rewound 6528 bytes.
D: [alsa-sink-HDMI 0] sink.c: Processing rewind...
D: [alsa-sink-HDMI 0] sink-input.c: Have to rewind 6528 bytes on render
memblockq.
D: [alsa-sink-HDMI 0] source.c: Processing rewind...
I: [pulseaudio] sink-input.c: Freeing input 24 "Vorne Rechts"
--------------------------
It also doesn't happen on the _internal_ speakers of my laptop, after hitting
pause on VLC, the debug looks like that:
--------------------------
I: [pulseaudio] module-stream-restore.c: Synced.
D: [alsa-sink-ALC255 Analog] protocol-native.c: Requesting rewind due to end of
underrun.
D: [alsa-sink-ALC255 Analog] sink-input.c: Requesting rewind due to uncorking
D: [alsa-sink-ALC255 Analog] alsa-sink.c: Requested to rewind 352800 bytes.
D: [alsa-sink-ALC255 Analog] alsa-sink.c: Limited to 6608 bytes.
D: [alsa-sink-ALC255 Analog] alsa-sink.c: before: 1652
D: [alsa-sink-ALC255 Analog] alsa-sink.c: after: 1652
D: [alsa-sink-ALC255 Analog] alsa-sink.c: Rewound 6608 bytes.
D: [alsa-sink-ALC255 Analog] sink.c: Processing rewind...
D: [alsa-sink-ALC255 Analog] sink.c: latency = 773
D: [alsa-sink-ALC255 Analog] source.c: Processing rewind...
D: [alsa-sink-ALC255 Analog] sink-input.c: Requesting rewind due to corking
D: [alsa-sink-ALC255 Analog] alsa-sink.c: Requested to rewind 101200 bytes.
D: [alsa-sink-ALC255 Analog] alsa-sink.c: Limited to 6224 bytes.
D: [alsa-sink-ALC255 Analog] alsa-sink.c: before: 1556
D: [alsa-sink-ALC255 Analog] alsa-sink.c: after: 1556
D: [alsa-sink-ALC255 Analog] alsa-sink.c: Rewound 6224 bytes.
D: [alsa-sink-ALC255 Analog] sink.c: Processing rewind...
D: [alsa-sink-ALC255 Analog] sink.c: latency = 729
D: [alsa-sink-ALC255 Analog] sink-input.c: Have to rewind 6224 bytes on render
memblockq.
D: [alsa-sink-ALC255 Analog] sink-input.c: Have to rewind 12448 bytes on
implementor.
D: [alsa-sink-ALC255 Analog] source.c: Processing rewind...
--------------------------
My System is:
Linux Apricity (12-2016)
based on Linux Arch
Pulseaudio Version 9</pre>
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