Upon updating to kernel 5.3.16 audio over nvidia HDMI become distorted and unusable. Driver version in use is 440.40, the latest release from nvidia.
Booting to previous kernel (5.3.15) returns audio to a usable state.
Standard, analog audio is not effected.
Possibly related to?:
It is probably best if you report this upstream to the alsa-devel list: alsa-devel there is not much we can do about this at the distro level.
Thanks for the tip and I have done so, referencing this report and the one from the link above.
Created attachment 1646509 [details]
Kernel patch to fix HDMI audio with kernel 5.3.16
This patch fixed the problem for me with version 5.3.16.
FYI to anyone who wants to try, I followed the steps on this webpage:
The patch is here:
I hope this helps!
Bug confirmed for:
kernel 5.3.16.fc30 and NVIDIA kmod 440.44
But it's independent from the used Alsa lib/tools version. Alsa had an update today and I tested downgrading of it first,
but it does not matter.
The only difference between working and not working is the choosen kernel version.
As the mentioned Kernel Patch fixes the issue, a fast kernel rebuild and push would be a good idea.
The 5.4.x rebase is going to be the next build, I've asked for it to be queued up for that.
With nouveau drivers it also happens
The issue appears to be fixed as of kernel-5.4.5-300.fc31.x86_64. Thank you!
I confirm that the problem is solved with the kernel from testing.
with the push of kernel 5.4.7 to stable, this br can be closed now.
Thank you for reporting that this is fixed now, closing.
This issue happens for me at 5.6.6-300.fc32.x86_64 again ... why?
Sorry for the brainless comment, I will report to the alsa-devel list referring follow comment:
> It is probably best if you report this upstream to the alsa-devel list: alsa-devel there is not much we can do about this at the distro level.