https://www.alsa-project.org/main/index.php?action=history&feed=atom&title=Detailed_changes_v1.2.15.2_v1.2.15.3Detailed changes v1.2.15.2 v1.2.15.3 - Revision history2026-04-06T10:15:16ZRevision history for this page on the wikiMediaWiki 1.39.0https://www.alsa-project.org/main/index.php?title=Detailed_changes_v1.2.15.2_v1.2.15.3&diff=14742&oldid=prevPerex: 1 revision imported2026-01-13T08:15:02Z<p>1 revision imported</p>
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</td></tr></table>Perexhttps://www.alsa-project.org/main/index.php?title=Detailed_changes_v1.2.15.2_v1.2.15.3&diff=14741&oldid=prevalsa>Perex at 08:15, 13 January 20262026-01-13T08:15:02Z<p></p>
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{| align="right"<br />
| __TOC__<br />
|}<br />
=Detailed changelog between 1.2.15.2 and 1.2.15.3 releases=<br />
=Changelog between 1.2.15.2 and 1.2.15.3 releases=<br />
==alsa-lib==<br />
===Core===<br />
- Release v1.2.15.3<br />
===Sequencer API===<br />
- seq: return back old snd_seq_drain_output behaviour for -EAGAIN<br />
<code><br />
It seems that many applications did not follow the documentation<br />
including pyalsa sequencer module, thus return the previous<br />
behaviour and correct documentation.<br />
<br />
Closes: https://github.com/alsa-project/alsa-lib/issues/493</code><br />
==alsa-ucm-conf==<br />
===Configuration===<br />
- HDA-analog: Fix the phantom jack detection if block<br />
<code><br />
The hpvol assignment should depend on speaker/line out detection.<br />
<br />
Link: https://github.com/alsa-project/alsa-ucm-conf/issues/685</code><br />
- HDA-analog: Use phantom jacks to determine the device for single output<br />
<code><br />
Improve previous commit (change) to determine the output type (device).<br />
<br />
Link: https://github.com/alsa-project/alsa-ucm-conf/issues/685</code><br />
- HDA-analog: Add output when only 'Master Playback' control exists<br />
<code><br />
There is a case when only one output is present (e.g. internal<br />
speakers or hp output). In this case, the driver offers only<br />
master volume controls.<br />
<br />
Add also more related cleanups for the line out and SOF HDA configs.<br />
<br />
Link: https://github.com/alsa-project/alsa-ucm-conf/issues/685</code><br />
- sof-hda-dsp: remove some debug lines<br />
<code><br />
Since 1.2.15, there is a better way to see the variable traces, e.g.:<br />
<br />
LIBASOUND_DEBUG=trace alsaucm -c hw:sofhdadsp dump text</code><br />
- sof-hda-dsp: Headphone output is optional<br />
<code><br />
Align changes with commit c8b5541.</code><br />
- ucm2: HDA: Fix headphone detection<br />
<code><br />
It appears that there are devices with just switches (no<br />
volume controls). Test presence of 'Headphone Playback Switch'<br />
control.<br />
<br />
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=2428561</code><br />
- USB-Audio: Add volume controls to Behringer UMCx0xHD direct profiles<br />
<code><br />
The new direct macro and 'Syntax 8' updates allows to add<br />
volume control to UCM direct profile for those cards.<br />
<br />
Link: https://github.com/alsa-project/alsa-ucm-conf/issues/662</code><br />
- USB-Audio: Fix UR22C firmware version condition<br />
<code><br />
Closes: https://github.com/alsa-project/alsa-ucm-conf/pull/684</code><br />
- USB-Audio: Add support for UR24C firmware version channel differences<br />
<code><br />
Closes: https://github.com/alsa-project/alsa-ucm-conf/pull/684</code><br />
===Description===<br />
- Release v1.2.15.3<br />
</div>alsa>Perex