Wayland blocks the microphone of the webcam

[Jean-Baptiste Lallement]

Jammy daily

In the wayland session the microphone of the webcam is no available.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: libwayland-bin 1.19.0-2build1
ProcVersionSignature: Ubuntu 5.13.0-20.20-generic 5.13.14
Uname: Linux 5.13.0-20-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu73
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Dec 2 07:45:44 2021
DistUpgraded: Fresh install
DistroCodename: jammy
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Comet Lake UHD Graphics [8086:9bca] (rev 04) (prog-if 00 [VGA controller])
   Subsystem: Intel Corporation Device [8086:2081]
InstallationDate: Installed on 2020-05-31 (549 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200527)
MachineType: Intel(R) Client Systems NUC10i7FNH
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_nt06gx@/vmlinuz-5.13.0-20-generic root=ZFS=rpool/ROOT/ubuntu_nt06gx ro snd-intel-dspcfg.dsp_driver=1
SourcePackage: wayland
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/21/2019
dmi.bios.release: 5.16
dmi.bios.vendor: Intel Corp.
dmi.bios.version: FNCML357.0032.2019.1021.1624
dmi.board.asset.tag: Default string
dmi.board.name: NUC10i7FNB
dmi.board.vendor: Intel Corporation
dmi.board.version: K61360-302
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 35
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 2.0
dmi.ec.firmware.release: 3.4
dmi.modalias: dmi:bvnIntelCorp.:bvrFNCML357.0032.2019.1021.1624:bd10/21/2019:br5.16:efr3.4:svnIntel(R)ClientSystems:pnNUC10i7FNH:pvrK61081-302:skuBXNUC10i7FNH:rvnIntelCorporation:rnNUC10i7FNB:rvrK61360-302:cvnIntelCorporation:ct35:cvr2.0:
dmi.product.family: FN
dmi.product.name: NUC10i7FNH
dmi.product.sku: BXNUC10i7FNH
dmi.product.version: K61081-302
dmi.sys.vendor: Intel(R) Client Systems
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-8ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.2-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200714-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-1build1

[Daniel van Vugt (vanvugt)]

'wayland' is just the protocol library so reassigning to Mutter which implements the protocol.

Does this mean the webcam microphone works in Xorg?

[Jean-Baptiste Lallement (jibel)]

Yes, it works perfectly with Xorg.

[Daniel van Vugt (vanvugt)]

Weird. I think this is PulseAudio's responsibility but how that relates to Wayland is not obvious. One possible explanation is the number of libraries/plugins used internally in the audio system that try to connect to an X11 server (I don't know why but they do). Starting recently mutter/gnome-shell does not have Xwayland running all the time so random library components are failing to find an X11 server. Seen also in bug 1949200.

[Sebastien Bacher (seb128)]

which webbrowser are you using? do you see some volume on the setting indicator under wayland? could you try if gnome-sound-recorder has the same issue?