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?
It's during shutdown, not startup. Yes, I'm sure. It's the same sound as when I want to go to UEFI config during startup or show a one-time boot menu. The sound is unmistakable.
I run a custom kernel, and I have the config options for the speaker
set as follows:
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_PCSPKR_PLATFORM=y
# CONFIG_INPUT_PCSPKR is not set
I have the stock Fedora kernel:
# grep -i pcspkr /boot/config-5.19.9-300.fc37.x86_64
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_INPUT_PCSPKR=m
I'm aware I could blacklist the pcspkr module, but I don't want to fix this just for myself.