<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - PulseAudio deals suboptimally with kernel issue with logitech usb webcam"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67644">67644</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>lennart@poettering.net
</td>
</tr>
<tr>
<th>Assignee</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>PulseAudio deals suboptimally with kernel issue with logitech usb webcam
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rocketraman@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>core
</td>
</tr>
<tr>
<th>Product</th>
<td>PulseAudio
</td>
</tr></table>
<p>
<div>
<pre>The Linux kernel, for some time, has been having random problems with Logitech
webcams. I have encountered this problem in Fedora, but there is a large
community of Ubuntu users who have this problem also.
<a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/884210">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/884210</a>
The basic issue seems to be that the kernel somehow messes up the webcam, and
the webcam has to be unplugged and replugged in order to continue.
However, while PulseAudio is not the "root cause" of the issue, it appears to
handle the problem in a sub-optimal way:
1) Once the webcam is "broken", all PulseAudio sound becomes broken, even to
devices that are still working perfectly well.
2) Once the webcam is unplugged and replugged, PulseAudio needs to be
restarted. It does not automatically recover from whatever situation it has
gotten into.
I will attach a trace from pulseaudio -vvvvv the next time this happens on my
system.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>