I have also observed a similar behavior with Ubuntu 20.04
lspci | grep Audio
09:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590] 0b:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller
uname -a
Linux jrechenknecht7 5.4.0-73-generic #82-Ubuntu SMP Wed Apr 14 17:39:42 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
and Firefox 88.0.1 (AMD64 Platform).
For me this bug also causes other applications to be distorted, too.
sudo lshw -C sound
sudo lshw -C sound *-usb:4 Beschreibung: Audio-Gerät Produkt: HD Webcam C615 Hersteller: Logitech, Inc. Physische ID: a Bus-Informationen: usb@1:a Version: 0.11 Seriennummer: 4B9FE1D0 Fähigkeiten: usb-2.00 audio-control Konfiguration: driver=uvcvideo maxpower=500mA speed=480Mbit/s *-multimedia Beschreibung: Audio device Produkt: Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590] Hersteller: Advanced Micro Devices, Inc. [AMD/ATI] Physische ID: 0.1 Bus-Informationen: pci@0000:09:00.1 Version: 00 Breite: 64 bits Takt: 33MHz Fähigkeiten: pm pciexpress msi bus_master cap_list Konfiguration: driver=snd_hda_intel latency=0 Ressourcen: irq:100 memory:fce60000-fce63fff *-multimedia Beschreibung: Audio device Produkt: Starship/Matisse HD Audio Controller Hersteller: Advanced Micro Devices, Inc. [AMD] Physische ID: 0.4 Bus-Informationen: pci@0000:0b:00.4 Version: 00 Breite: 32 bits Takt: 33MHz Fähigkeiten: pm pciexpress msi bus_master cap_list Konfiguration: driver=snd_hda_intel latency=0 Ressourcen: irq:102 memory:fc900000-fc907fff
Note that the behavior occurred when the Logitex C615 has been unplugged. I was just curious, because Dave Evans has the same webcam so I could not exclude that this may be related.
I have also observed a similar behavior
with Ubuntu 20.04
lspci | grep Audio
09:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590]
0b:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller
uname -a
Linux jrechenknecht7 5.4.0-73-generic #82-Ubuntu SMP Wed Apr 14 17:39:42 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
and Firefox 88.0.1 (AMD64 Platform).
For me this bug also causes other applications to be distorted, too.
sudo lshw -C sound
sudo lshw -C sound
Beschreibung: Audio-Gerät
Bus-Information en: usb@1:a
Seriennummer: 4B9FE1D0
Konfiguration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
Beschreibung: Audio device
Bus-Information en: pci@0000:09:00.1
Konfiguration: driver= snd_hda_ intel latency=0 fce60000- fce63fff
Beschreibung: Audio device
Bus-Information en: pci@0000:0b:00.4
Konfiguration: driver= snd_hda_ intel latency=0 fc900000- fc907fff
*-usb:4
Produkt: HD Webcam C615
Hersteller: Logitech, Inc.
Physische ID: a
Version: 0.11
Fähigkeiten: usb-2.00 audio-control
*-multimedia
Produkt: Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590]
Hersteller: Advanced Micro Devices, Inc. [AMD/ATI]
Physische ID: 0.1
Version: 00
Breite: 64 bits
Takt: 33MHz
Fähigkeiten: pm pciexpress msi bus_master cap_list
Ressourcen: irq:100 memory:
*-multimedia
Produkt: Starship/Matisse HD Audio Controller
Hersteller: Advanced Micro Devices, Inc. [AMD]
Physische ID: 0.4
Version: 00
Breite: 32 bits
Takt: 33MHz
Fähigkeiten: pm pciexpress msi bus_master cap_list
Ressourcen: irq:102 memory:
Note that the behavior occurred when the Logitex C615 has been unplugged.
I was just curious, because Dave Evans has the same webcam so I could not exclude that
this may be related.