Alsa-to-Jack bridge broken in alsa* 1.2.7.x

[hlekin]

I am using a setup according to https://alsa.opensrc.org/Jack_and_Loopback_device_as_Alsa-to-Jack_bridge

Since the upgrade of alsa-lib, alsa-ucm-conf, and alsa-utils to version 1.2.7, my alsa-to-jack-bridge setup is broken: $ jack_connect system:capture_1 ploop:playback_1 ERROR ploop:playback_1 not a valid port A downgrade to versions 1.2.6 resolves the issue. Versions 1.2.7.1 result in the same error.

The relevant output of qjackctl 0.9.7-2 > Messages is: Cannot write socket fd = 25 err = Broken pipe CheckRes error Could not write notification ClientNotify fails name = cloop notification = 0 val1 = 0 val2 = 0 NotifyAddClient old_client fails name = ploop Cannot write socket fd = 28 err = Broken pipe CheckRes error Could not write notification ClientNotify fails name = ploop notification = 1 val1 = 0 val2 = 0 ERROR ploop:playback_1 not a valid port ERROR ploop:playback_2 not a valid port ERROR cloop:capture_1 not a valid port ERROR cloop:capture_2 not a valid port

Please find attached alsa-info.sh output for alsa-versions 1.2.7.1 and 1.2.6 alsa-info.sh-output-220619.zip . I am aware, that this is a very poor bug report. Please ask for any information you need!

By the way, many thanks for all your programs and the effort you put in to them.

[perexg]

The port names are different in alsa-plugins-1.2.7.1 . List the jack port names and use the new one.

[hlekin]

$ jack_lsp system:capture_1 system:capture_2 system:playback_1 system:playback_2 ploop:playback_1 ploop:playback_2 cloop:capture_1 cloop:capture_2 Calf Studio Gear:Automation MIDI In Calf Studio Gear:Equalizer 8 Band In #1 Calf Studio Gear:Equalizer 8 Band In #2 Calf Studio Gear:Equalizer 8 Band Out #1 Calf Studio Gear:Equalizer 8 Band Out #2

upgrade alsa packages

Package (6) Old Version New Version Net Change extra/alsa-lib 1.2.6.1-1 1.2.7.1-1 0,03 MiB extra/alsa-plugins 1:1.2.6-3 1:1.2.7.1-1 0,00 MiB extra/alsa-ucm-conf 1.2.6.3-1 1.2.7.1-1 0,04 MiB extra/alsa-utils 1.2.6-1 1.2.7-1 0,05 MiB multilib/lib32-alsa-lib 1.2.6.1-1 1.2.7.1-1 0,01 MiB multilib/lib32-alsa-plugins 1.2.6-1 1.2.7.1-1 0,00 MiB

qjackctl > Start

$ jack_lsp system:capture_1 system:capture_2 system:playback_1 system:playback_2 Calf Studio Gear:Automation MIDI In Calf Studio Gear:Equalizer 8 Band In #1 Calf Studio Gear:Equalizer 8 Band In #2 Calf Studio Gear:Equalizer 8 Band Out #1 Calf Studio Gear:Equalizer 8 Band Out #2

There are no new jack port names...

[perexg]

The loop ports are missing after upgrade. Are alsa_out and alsa_in tools running?

[hlekin]

How can I verify that alsa_out and alsa_in tools are running?

[hlekin]

This is from the first line in my loop2jack script: $ /usr/bin/alsa_out -j ploop -dploop Unable to get buffer size back: Invalid argument Setting of hwparams failed: Invalid argument

[perexg]

Could you try to bisect the commit which makes this utility fail? You may use LD_PRELOAD to load the test library without installing it. Example (assuming that the alsa-lib sources are in ~/git/alsa-lib tree):

LD_PRELOAD="~/git/alsa-lib/src/.libs/libasound.so.2" /usr/bin/alsa_out -j ploop -dploop

Thanks.

[hlekin]

Yes, I can try. Which test library exactly? If I check out the master brach and compile it, I will get what I have already got, v1.2.7.1?

[perexg]

There is v1.2.7.1 tag (which actually matches to master branch - f91c89da999cf4f9445ada0206ef4b7c25255cdf).

[hlekin]

The package from my distribution, which I used here, is already alsa-lib 1.2.7.1-1 (s. a.).