power draw? filtering? variable power use? data interference tho, we kind of ruled those out i think
but what if other oses control hw differently. maybe some freq scaling wild guesses eh i'm curious what the fix is, really... On July 26, 2026 10:11:31 AM GMT+03:00, vermaden <[email protected]> wrote: >Hi, > >I will not quote the earlier messages as I found new way to generate this >buzzing sound (for debugging). > >Works both for 14.4-RELEASE (I downgraded to that for less sound issues) and >latest 15.1-RELEASE. > >Start playing some MP3 with 'audio/deadbeef' player - I tried both PulseAudio >and OSS backends - same behavior - You need to compile Deadbeef from ports if >You want to have PulseAudio backend. > >Next install 'benchmarks/glmark2' and run it without any other parameters with >'glmark2' command. > >First benchmark is 'rotating horse', second is 'rotating crate box' - buzzing >will start at the end of 'horse' and will continue on the 'box' and rest of >the benchmarks. > >Setting these change nothing: ># sysctl hw.snd.timeout=0 ># sysctl hw.snd.latency=0 > >Bug submitted here: >https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=297059 > >Regards, >vermaden > >
