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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Disabling flat volumes triggered master volume level to reach 100% while trying to decrease/increase it"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92207">92207</a>
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<th>Summary</th>
<td>Disabling flat volumes triggered master volume level to reach 100% while trying to decrease/increase it
</td>
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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>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>core
</td>
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<th>Assignee</th>
<td>pulseaudio-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>germano.massullo@gmail.com
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<th>QA Contact</th>
<td>pulseaudio-bugs@lists.freedesktop.org
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<th>CC</th>
<td>lennart@poettering.net
</td>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=118554" name="attach_118554" title="pulseaudio logs">attachment 118554</a> <a href="attachment.cgi?id=118554&action=edit" title="pulseaudio logs">[details]</a></span>
pulseaudio logs
(Downstream bugreport at <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1265830">https://bugzilla.redhat.com/show_bug.cgi?id=1265830</a> )
Description of problem:
Days ago I disabled PulseAudio's flat volumes due PulseAudio:
- crackling audio trouble (bugreport #92031)
- inability to correctly handle application bad behaviour about volume levels
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1265267">https://bugzilla.redhat.com/show_bug.cgi?id=1265267</a>
Disabling PulseAudio's flat volumes solved the mentioned problems, but
introduced a new one.
I usually increase / decrease volume level by using mouse wheel on KMix icon.
Both actions sometimes trigger the master volume to 100% level. While
collecting PulseAudio logs, I managed to reproduce (twice) the problem:
Note: each mousewheel step increases or decreases volume level by a 5%.
===First occurrence of the problem===
At line number 1359 you can see the volume setted at 70%:
A few moments later, I tried to increase it at 75%, but the volume level has
been pushed to 100% (line number 1459).
===Second occurrence of the problem===
At line number 18000 you can see the volume setted at 40%:
A few moments later, I tried to increase it at 45%, but the volume level has
been pushed to 100% (line number 18016).
Since on the logs, every volume level change has the form of
D: [alsa-sink-Multichannel] alsa-sink.c: Requested volume: front-left: 65536 /
100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
that "Requested volume" makes me think about PulseAudio being requested to set
the volume to 100%. So in the dubt I added in CC some guys of KDE SIG and alsa.
I can quite easly reproduce the problem, so feel free to ask me to do any test.
Version-Release number of selected component (if applicable):
pulseaudio-6.0-8.fc22.x86_64
kmix-15.04.0-1.fc22.x86_64</pre>
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