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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - module-udev-detect fails to create sink for sound card"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107037">107037</a>
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<th>Summary</th>
<td>module-udev-detect fails to create sink for sound card
</td>
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<th>Product</th>
<td>PulseAudio
</td>
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>modules
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<th>Assignee</th>
<td>pulseaudio-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>tukkek@gmail.com
</td>
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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
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<p>
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<pre>Created <span class=""><a href="attachment.cgi?id=140339" name="attach_140339" title="Debian testing packages installed/upgraded/removed immediately before sound was lost">attachment 140339</a> <a href="attachment.cgi?id=140339&action=edit" title="Debian testing packages installed/upgraded/removed immediately before sound was lost">[details]</a></span>
Debian testing packages installed/upgraded/removed immediately before sound was
lost
After updating Debian testing today my sound completely broke. I have managed
to fix the issue by enabling "module-alsa-sink" on "/etc/pulse/default.pa".
Even as "module-udev-detect" found the card, for some reason it didn't create a
sink for it, falling back to a null sink ("Dummy output") instead.
Before that, I tried using "module-detect" instead of "module-udev-detect" and
it did manage to find my cards and create a non-null sink but I still didn't
get any sound. I think in all likelihood it was just using the wrong card
because everything seemed to be working fine, except that I didn't get any
actual audio from the connected ports.
I'm using a HDA ATI SB card on a Realtek ALC887-VD chip on an old M5A78L-M
LX/BR ASUS motherboard and since activating "module-alsa-sink" everything is
working as intended. I'll updated this issue if anything else comes up.
Pùlseaudio version is 11.1.
This is my first time going into Pulseaudio to find a solution myself but since
I did manage to resolve the problem I think I got a decent grasp on what is
happening. I apologize if I'm making any wrong assumptions or writing nonsense.
What is crazy is that the Debian upgrade I made today was fairly small and
didn't touch any package that would obviously cause this issue. I will attach a
list of the packages that changed (most stuff is just me removing Wine). The
only things that I can imagine caused this issue were either
"gstreamer1.0-plugins-ugly" (unlikely) or" libstdc++6" (equally unlikely but
could explain an unexpected behavior change on udev-detect). Maybe I'm missing
something so feel free to take a look at the apt log.
Thanks for all the great work on Pulseaudio - other than this instance, it's
been many years since I had any trouble at all :)
(By the way, searching for "linux" "no sound" "dummy output" online shows a lot
of hits if you filter only results from the past month, many with the same
story of recent upgrade/install on a Debian-based distro. Probably same issue?)</pre>
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