I would like to report that with -32 kernel sound works fine and -35
does not in a more complex configuration. AMD RX 560 is bypassed into a
virtual machine using IOMMU. A display port connection is used.
I'm attaching 'sudo lspci -nvvv' for -32 and -35 kernels invoked from
the virtual machine.
This is the difference between them:
diff --git a/lspci.32.iommu b/lspci.35.iommu
index e7f7560..058c719 100644
--- a/lspci.32.iommu
+++ b/lspci.35.iommu
@@ -34,9 +34,9 @@
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
- Status: D3 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
+ Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
- Address: 00000000fee09000 Data: 0024
+ Address: 0000000000000000 Data: 0000
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
** Attachment added: "lspci.iommu.32.vs.35.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2009136/+attachment/5656327/+files/lspci.iommu.32.vs.35.log
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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.
Currently known affected cards:
* HD 7700 (comment 8)
* R9 290 (comment 21)
* RX 550 (LP: #2012141, and comment 27)
* RX 570 (mine)
* RX 580 (LP: #2009276, and comment 28)
* WX 3200 (comment 29)
* RX 6600 (LP: #2009542)
* RX 6700 (LP: #2009275)
[ 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.
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