I noticed that this has to do with the driver that gets selected for the
audio controller.
On kernel 6.5 I get this in lspci -v:
00:1f.3 Audio device: Intel Corporation CM238 HD Audio Controller (rev 31)
(prog-if 80)
Subsystem: Dell CM238 HD Audio Controller
Flags: bus master, fast devsel, latency 32, IRQ 151
Memory at edd28000 (64-bit, non-prefetchable) [size=16K]
Memory at edd00000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [50] Power Management version 3
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel, snd_soc_avs
On kernel 6.8 it is this:
00:1f.3 Audio device: Intel Corporation CM238 HD Audio Controller (rev 31)
(prog-if 80)
Subsystem: Dell CM238 HD Audio Controller
Flags: bus master, fast devsel, latency 32, IRQ 159, IOMMU group 13
Memory at edd28000 (64-bit, non-prefetchable) [size=16K]
Memory at edd00000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [50] Power Management version 3
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: snd_soc_avs
Kernel modules: snd_hda_intel, snd_soc_avs
And sometimes when booting with kernel 6.8 the sound works, and then I
get the similar output to kernel 6.5:
00:1f.3 Audio device: Intel Corporation CM238 HD Audio Controller (rev 31)
(prog-if 80)
Subsystem: Dell CM238 HD Audio Controller
Flags: bus master, fast devsel, latency 32, IRQ 159, IOMMU group 13
Memory at edd28000 (64-bit, non-prefetchable) [size=16K]
Memory at edd00000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [50] Power Management version 3
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel, snd_soc_avs
I don't really know why this happens, but I shall see if I can make
kernel 6.8/alsa to prefer snd_hda_intel (or figure why it isn't using
snd_hda_intel).
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2062985
Title:
ALSA Fails to detect any devices with kernel 6.8.0
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2062985/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
