Public bug reported: This problem came up after installing Xubuntu 20.04.02 on this computer, which used Xubuntu 18.04 before. Ifter installing the system, I installed some programs, among them Sound Switcher Indicator 2.3.6 and I unistalled firefox after I had installed Chromium instead.
My first test of Audio/Video: When streaming e.g. from https://www.france24.com/fr/direct, I can see the video part but I hear nothing. I am sure that the loudspeaker is not muted. pavucontrol shows me a blue slider switch. Its tab "playback" shows a varying Chromium playback indicator and the associated fader has influence on the amplitude of the shown intensity. (Note: I am using a German version so my transaltions of the items might be off a bit, still I hpe that it can be understood). I have no HDMI cable connected to the computer and no USB-sound device is plugged into it. The laptop has an internal microphone and an internal loudspeaker. In pavucontrol's tab "output devices" it shows something like "no output devices available" when "only hardware devices" are selected there. In pavucontrol's tab "configuration" I can select nothing. I am quite confident that this is not a hardware bug, because the audio system worked before I upgraded to Xubuntu 20.04.02. I also tried alsamixer. in F2 it offers two cards: 0: PCH and 1: HDMI. When I type 0 there to select the PCH one, nothing happens. If I type 1, nothing happens either (I expected the latter since there is no HDMI- device connected). In the levels above, one of the offered items is highlighted and the selection can be moved by up or down. Most of the files in /proc/asound are empty: $ ls -l /proc/asound insgesamt 0 dr-xr-xr-x 6 root root 0 2021-07-30 17:46 card0 dr-xr-xr-x 6 root root 0 2021-07-30 17:46 card1 -r--r--r-- 1 root root 0 2021-07-30 17:46 cards -r--r--r-- 1 root root 0 2021-07-30 17:46 devices lrwxrwxrwx 1 root root 5 2021-07-30 17:46 HDMI -> card1 -r--r--r-- 1 root root 0 2021-07-30 17:46 hwdep -r--r--r-- 1 root root 0 2021-07-30 17:46 modules dr-xr-xr-x 4 root root 0 2021-07-30 17:46 oss lrwxrwxrwx 1 root root 5 2021-07-30 17:46 PCH -> card0 -r--r--r-- 1 root root 0 2021-07-30 17:46 pcm dr-xr-xr-x 6 root root 0 2021-07-30 17:46 seq -r--r--r-- 1 root root 0 2021-07-30 17:46 timers -r--r--r-- 1 root root 0 2021-07-30 17:46 version Probably this will give a hint (perhaps it is also visible from the automatically collected information). I think I had tried the sound system with the live stick before installation. But I'll repeat that test again and tell you the outcome. Kind regards melolontha ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: pulseaudio 1:13.99.1-1ubuntu3.11 ProcVersionSignature: Ubuntu 5.8.0-63.71~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-63-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.18 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperMD5CheckResult: skip CurrentDesktop: XFCE Date: Fri Jul 30 17:08:50 2021 InstallationDate: Installed on 2021-07-28 (1 days ago) InstallationMedia: Xubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) SourcePackage: pulseaudio Symptom: audio Symptom_Card: HDA-Intel - HDA Intel PCH Symptom_Jack: Speaker, Internal Title: [VPCCA3S1E, Realtek ALC269, Speaker, Internal] Pulseaudio fails to detect card UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/24/2011 dmi.bios.release: 21.0 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: R2100V2 dmi.board.asset.tag: N/A dmi.board.name: VAIO dmi.board.vendor: Sony Corporation dmi.board.version: N/A dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Sony Corporation dmi.chassis.version: N/A dmi.ec.firmware.release: 21.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR2100V2:bd08/24/2011:br21.0:efr21.0:svnSonyCorporation:pnVPCCA3S1E:pvrC609VVH0:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.family: VAIO dmi.product.name: VPCCA3S1E dmi.product.sku: N/A dmi.product.version: C609VVH0 dmi.sys.vendor: Sony Corporation ** Affects: pulseaudio (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1938584 Title: [VPCCA3S1E, Realtek ALC269, Speaker, Internal] Pulseaudio fails to detect card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1938584/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs