alsa-project/alsa-lib issue #143 was opened from foutrelis: (Copying my comments over from #142 since it appears to be a different issue to that one. Sorry for the noise there!) After upgrading to alsa-lib 1.2.5 Chromium stopped playing audio until pulseaudio was restarted. Upon closer inspection, `pactl list cards` is now missing the `HDA Intel HDMI` card and only shows the `HDA Intel PCH` one. Some error messages I've gathered: - After upgrading to alsa-lib and before restarting pulseaudio, attempting to play a video in Chromium would result in: `pulseaudio[625]: Error opening PCM device front:0: Invalid argument` - Restarting pulseaudio with alsa-lib 1.2.5 installed logs the following to the journal: ``` pulseaudio[66345]: Failed to find a working profile. pulseaudio[66345]: Failed to load module "module-alsa-card" (argument: "device_id="1" name="pci-0000_00_03.0" card_name="alsa_card.pci-0000_00_03.0" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed. ``` Git bisect points to commit 63f7745be504e447923f2cde421177a2fca99340 as the first commit that results in the `Failed to find a working profile` error. After restarting pulseaudio with alsa-lib 1.2.5 installed, it appears that `pactl list cards` shows one fewer cards on my laptop which has this audio hardware: ``` $ lspci | grep Audio 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b) 00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04) ``` [alsa-lib-1.2.4-pactl-list-cards.txt](https://github.com/alsa-project/alsa-lib/files/6575475/alsa-lib-1.2.4-pactl-list-cards.txt) [alsa-lib-1.2.5-pactl-list-cards.txt](https://github.com/alsa-project/alsa-lib/files/6575476/alsa-lib-1.2.5-pactl-list-cards.txt) `pulseaudio -v` output: [pulseaudio-verbose.txt](https://github.com/alsa-project/alsa-lib/files/6577650/pulseaudio-verbose.txt) Issue URL : https://github.com/alsa-project/alsa-lib/issues/143 Repository URL: https://github.com/alsa-project/alsa-lib
