SUMMARY Just playing in Garry's Mod and left it running over night and turned off my surround receiver. After coming back the game appears to crash so I started it back up and no sound. Note: A couple of days doing this with no sound issues. Did a sound test in the Sound System Settings with no sound there either. Checking the sound output from the speaker icon in the panel and the configure window showing that HDMI is there. When game is running I see the sound bar moving for sound. Also, rear analog output device is gone or it changed to digital input S/PIDF. No S/PIDF output or this change to S/PIDF input. STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Operating System: Bazzite 43 KDE Plasma Version: 6.5.4 KDE Frameworks Version: 6.21.0 Qt Version: 6.10.1 Kernel Version: 6.17.7-ba22.fc43.x86_64 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 9700X 8-Core Processor Memory: 64 GiB of RAM (60.5 GiB usable) Graphics Processor 1: NVIDIA GeForce GTX 1080 Ti Graphics Processor 2: AMD Ryzen 7 9700X 8-Core Processor I add this HW info you need: ASUS ROG STRIX B650E-I GAMING WIFI ADDITIONAL INFORMATION The Sound is a little buggy in default stereo output from HDMI sounds awful to setting all sounds to HDMI went to wrong output by clinking on the 3 dots and selecting "Play all audio via this devices". It's confusing that one HW device jack you can change to digital in, digital out, analog in, to analog out???
Sounds like the underlying sound system broke. This is below KDE code, so I'd recommend reporting it to the Bazzite folks fur further troubleshooting.