Bug 500919

Summary: No longer able to change audio devices
Product: [Plasma] plasmashell Reporter: GameBurrow <gameburrow>
Component: Audio in generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DOWNSTREAM    
Severity: normal CC: gameburrow, isma.af, nate, nicolas.fella
Priority: NOR    
Version First Reported In: 6.3.0   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description GameBurrow 2025-03-01 20:13:08 UTC 
SUMMARY
I encountered an issue where KDE sound panel breaks (I can't change the default devices anymore, click on the the dot in the settings panel doesn't work and if I do in the tray icon mini panel, it shows toggles it on in the UI ,but keeps the old one also one and doesn't actually switch. It worked fine until yesterday, not today, no idea why.

https://paste.gloriouseggroll.tv/?2589816ba506a11c#D5CNAZwdvtxrSJwgvx3jGKEwJdvhd7qAEQeqeXSashiL

STEPS TO REPRODUCE
1.  Connect more than 1 audio device
2. Try to switch in the audio device in the audio panel or audio settings

OBSERVED RESULT
In panel checkbox appears ticked on any device I've clicked on, old ones stay on, device doesn't change.
In sound settings, when I click on device checkbox, nothing changes

EXPECTED RESULT
It works

SOFTWARE/OS VERSIONS
```
❯ fastfetch -l none
OS: Nobara Linux 41 (KDE Plasma) x86_64
Host: ROG Strix G733ZW_G733ZW (1.0)
Kernel: Linux 6.13.5-200.nobara.fc41.x86_64
Uptime: 15 mins
Packages: 3411 (rpm), 23 (flatpak-system), 32 (flatpak-user)
Shell: zsh 5.9
Display (BOE0A69): 2560x1440 @ 240 Hz (as 2048x1152) in 17" [Built-in] *
Display (MB16A): 1920x1080 @ 60 Hz in 16" [External]
DE: KDE Plasma 6.3.0
WM: KWin (Wayland)
WM Theme: Breeze
Theme: Breeze (Nobara) [Qt], Nobara [GTK2/3/4]
Icons: Papirus-Dark [Qt], Papirus-Dark [GTK3/4]
Font: Noto Sans (11pt) [Qt], Noto Sans (11pt) [GTK3/4]
Cursor: breeze (24px)
Terminal: konsole 24.12.2
CPU: 12th Gen Intel(R) Core(TM) i9-12900H (20) @ 5.00 GHz
GPU 1: NVIDIA Geforce RTX 3070 Ti Laptop GPU [Discrete]
GPU 2: Intel Iris Xe Graphics @ 1.45 GHz [Integrated]
Memory: 7.24 GiB / 31.00 GiB (23%)
Swap: 0 B / 42.09 GiB (0%)
Disk (/): 218.35 GiB / 918.20 GiB (24%) - btrfs
Disk (/mnt/ssd2tb_linux): 1.00 TiB / 1.79 TiB (56%) - ext4
Local IP (wlo1): 192.168.1.49/24
Battery (GA50358): 100% [AC Connected]
Locale: en_GB.utf8
```

ADDITIONAL INFORMATION
I'm observing this on 2 different computers (both running same OS and all available updates installed)
Comment 1 GameBurrow 2025-03-01 20:40:38 UTC 
Something extra to note, one of the computers is clean install on friday and encounters the same issue.

I did try dowgrading pipewire wireplumber (using dnf downgrade pipewire wireplumber).
Comment 2 GameBurrow 2025-03-01 20:52:39 UTC 
One more update, what seems to do anything is right clicking on the audio device in the sound panel and choosing play all audio via this device (same with mic).. It doesn't toggle the device visually but at leasst seems to change the actually used device

https://i.imgur.com/azjhYvl.png
Comment 3 GameBurrow 2025-03-03 08:56:40 UTC 
Found what was causing the issue, it's com.dec05eba.gpu_screen_recorder flatpak as strange as it is. Uninstalling that fixed it for both computers. Will report the issue to it's author also (and link to this issue)