On Fri, 2022-09-23 at 08:13 -0700, stan via test wrote: > > I forgot to reply to this part of the message. I have been running > F37 > since it was rawhide, and have never heard this beep. But, I'm > running > a desktop, so that might make a difference. And a question. Are you > sure this is the PC speaker, and not something sending sound to the > sound device during startup? Does the sound come from the speakers or > does it come from the internals of the PC? The PC speaker is on the > MB, so should only be heard from inside the case. It isn't nearly so simple. The PC "squeeker" is ancient PC tech but almost every sound chip has an input to route it into the rest of the audio system and a mixer control to adjust it. Almost every PC motherboard also has a header to directly connect a speaker. This allows one to hear sounds created by the BIOS during POST, before the modern audio chip is initialized. Whether the motherboard or laptop actually connects the PC Speaker to the audio codec is almost entirely random. Whether anything is connected to the raw "squeeker" pins is random but tending more toward "not" every year that passes. Not allowing Linux to load the pcspeaker module will stop Linux from ever making a sound via that path but system level software running at higher privilege than the main OS can and often does use the speaker, over temp, fan failure, POST error, a happy beep at boot, all these things can still make sounds and there is a speaker attached or if the electrical connection is in place and the audio codec still has it enabled as a machine reboots, you can get beeps. About the only fix Linux could make is to ensure all audio channels are muted as the system goes into shutdown, reboot, sleep or suspend. That still won't stop a directly connected beeper though.
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