Hello Josef,
The new driver version is marked with “(fix)”
I installed this version per your instructions, and I got the same cmus behavior as before, but with this LOG output:
[runtime -> bsd_audio_drv] Error: LD: jump slot relocation failed for symbol: 'Genode::Timeout::Timeout(Timer::Connection&)' [runtime -> bsd_audio_drv] Error: deadlock ahead, mutex=0x161a40, return ip=0xebbb0
For adjusting volume levels let me point you to Alex' [1] Genodians post.
Thank you for additional info.
Best regards, Dima Sokolov