alsa-ucm-conf is installed. I really think it is an ACPI problem, the VMs just don't have the capabilities of dom0.
Connecting the audio controller (Multimedia audio controller [0401]: Intel Corporation Meteor Lake-P HD Audio Controller [8086:7e28] (rev 20)) to the audio VM says: [ 3.335463] sof-audio-pci-intel-mtl 0000:00:09.0: NHLT table not found [ 3.335661] sof-audio-pci-intel-mtl 0000:00:09.0: DMICs detected in NHLT tables: 0 While dom0 says: [ 37.489569] sof-audio-pci-intel-mtl 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver [ 37.544083] sof-audio-pci-intel-mtl 0000:00:1f.3: DMICs detected in NHLT tables: 2 dom0 recognizes and uses the controller correctly/fully, while a VM only does a crippled mode with some basic intel-hda functionality. Both have the same kernel, sof-drivers, etc. but the VM does not have the NHLT table. The internal microphone does not work with the VM. On Monday, March 2, 2026 at 2:23:44 PM UTC+1 Tim Faber wrote: > On 2/28/26 18:29, Peter Palensky wrote: > > My (new) laptop's built-in microphone works in dom0 but not in my audio- > > VM (i use audio-VMs with other Qubes computers and it was always fine). > > > > dmesg complains about "NHLT table not found", and in deed: dom0 has / > > sys/firmware/acpi/tables/NHLT and the VMs don't (neither using fedora > > nor debian). Is that the reason, and if so: how to fix it? > > > > Installed newer versions of alsa-sof-firmware / firmware-sof-signed but > > no change. > > > > dom0 recognizes the sound card (intel hda ALC236) with all features/ > > controls, but the audio-VM sees only a limited set and mic is dead > > (speaker works). > > > > Qubes OS R4.3 on an HP Elitebook 650 G11, Intel Core Ultra 5 135U, > > Meteor Lake-P, kernel 6.18.4-1 > > Just a wild guess: could the alsa-ucm package be missing? > -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/qubes-users/bb16d593-21f4-4477-8614-ac55374becf5n%40googlegroups.com.
