@koba I've tried each of the kernels in comment 25 and I'm afraid it rather refutes the theory that fdcc4c22b is the culprit:
The latest vanilla kernel (#1) is "good"; HDMI audio works happily. That suggests (although not conclusively) that fdcc4c22b isn't the culprit as it presumably includes that commit. The latest vanilla kernel with fdcc4c22b reverted (#2) is also "good"; HDMI audio works, although I did note dmesg had an awful lot of preempt errors reported in it (which did not appear with the vanilla kernel above). Finally, just to put the nail in the coffin of fdcc4c22b being the faulty commit, the 5.19.0-35 kernel with fdcc4c22b reverted (#3) is "bad"; exhibits the original failure with HDMI audio being unavailable. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2009136 Title: No HDMI audio under 5.19.0-35 & -37 (regression from -32) Status in linux package in Ubuntu: Confirmed Status in linux source package in Jammy: Invalid Status in linux source package in Kinetic: In Progress Bug description: CLARIFICATION: Just to avoid any confusion for those coming to this bug report; the "Jammy: invalid" status above does *not* mean that this bug doesn't affect jammy -- it does, and the kernel team is aware of this. All it reflects is that the fix has to go into the kinetic kernel package which will then flow into the kernel-hwe package implicitly. [ Original Description ] After upgrading my Ubuntu jammy (22.04) desktop to the -35 release of the kernel, I found my HDMI audio output device had disappeared. Reverting to the -32 release caused it to appear again (hence why I'm filing the bug against the kernel rather than pulseaudio). I'm attaching the dmesg output from immediately after booting each kernel, but after a bit of trimming and diffing I *think* the following lines are the salient ones: input: HDA ATI HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.1/0000:2b:00.1/sound/card0/input12 input: HDA ATI HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.1/0000:2b:00.1/sound/card0/input13 input: HDA ATI HDMI HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.1/0000:2b:00.1/sound/card0/input14 input: HDA ATI HDMI HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:03.1/0000:2b:00.1/sound/card0/input15 input: HDA ATI HDMI HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:03.1/0000:2b:00.1/sound/card0/input16 input: HDA ATI HDMI HDMI/DP,pcm=11 as /devices/pci0000:00/0000:00:03.1/0000:2b:00.1/sound/card0/input17 snd_hda_intel 0000:2b:00.1: bound 0000:2b:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu]) These lines appear in the dmesg of the -32 kernel, but not in the -35 kernel's log. Meanwhile, the following lines appear in the -35 kernel's log but not in the -32: hdaudio hdaudioC0D0: no AFG or MFG node found snd_hda_intel 0000:2b:00.1: no codecs initialized I'll also attach the output of "pactl list" under each kernel (this shows the HDMI audio sink showing up under -32, but not -35) just in case that helps shed any light on things. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2009136/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
