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Am 11.09.2022 um 12:29 schrieb Christian Danneberg:
Hi Michael, seems to work!!! This solved the issue. Thanks! Any explanations how this happens?
As mentioned in my previous mail, systemd now defaults to sending a wall message (on shutdown/reboot/...) if there are locally logged in users.
It appears, this wall message triggers the beep on your system (you can verify that by running the wall command)
https://lists.debian.org/debian-user/2011/12/msg00323.html I'd try blacklisting the pcspkr module: echo "blacklist pcspkr" >> /etc/modprobe.d/blacklist.conf
Christian Am 10.09.22 um 23:27 schrieb Michael Biebl:Control: tags -1 + moreinfo Am 10.09.2022 um 21:57 schrieb Christian Danneberg:on every reboot or shutdown my Laptop beeps very loud (Dell E6230). This behaviour came up after the installation of Bookworm. I tried all stuff I found. Blacklisting of pcspkr kernel module, on my system I can't find a module like pcspkr or similar. Tried to find the hex code 0x07 in the binary of /sbin/shutdown. As suggested in forum.debian.de. All that had no effect.Do you get a beep if you run systemctl reboot --no-wall ? It's possibly related to https://github.com/systemd/systemd/commit/cdf370626f08ed509a5dde9d5618eed29d625032 In that case, wall messages do trigger a beep on your system. If you don't want that, you can blacklist pcspkr.
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