Hello Michael, On Wed, Jul 02, 2025 at 07:21:05PM +0200, Michael Fritscher wrote: > thanks for stepping in! > > One additional info from > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1612916: Newer Windows > drivers do have the same problem .
There it's also indicated that the microphone continues to work and pavucontrol indicates output but there isn't. > Regarding binding/unbinding: Yes, it is using snd_hda_intel as well, the > card is even on the same port ( 0000:00:1f.3 ). > > 1. unbinding/binding on the system works flawlessly, if the system was not > suspended before. > > 2. unbinding, suspend, resume, bind does not help, > > 3. unbinding and binding after resume does not help as well. ok, the most likely interpretation is that this is a firmware issue then. I didn't recheck, but the statement that you're on the newest BIOS version is still true? > I think(!) that it has something to do with the codec. Perhaps missing GPIO > or something like that. Yeah, something like a GPIO that resets the output path that is asserted at suspend, and deasserted at boot but not resume. I guess someone with Windows driver debugging skills could work out the relevant difference between the driver versions 8.66.47.50 and 8.66.47.56. Maybe there is also a changelog that could give an indication?! Maybe it also helps to bring this to the attention of the hda-intel maintainers, though there doesn't seem to be a dedicated maintainer for that driver. Best regards Uwe
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