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I have a Sun keyboard attached to my gentoo PC. If I accidentally touch the key with the moon symbol on it (happens once or twice a week as I am reaching for my mouse), it triggers an orderly shutdown of my PC.

I want to stop it from doing that.

My first attempt was to deactivate the ca entry in /etc/inittab by changing it to ca:12345:ctrlaltdel:/bin/true /sbin/shutdown -h now "Fist of Bob" but the moon key still shuts down the PC.

This PC does not have an /etc/acpi directory as referenced in Have Sun keyboard moon key (116) not shut down my computer, nor does it have systemd.

I have no idea what chain of events is triggered by pressing the moon key, so I have no idea what software I should be reconfiguring to prevent the shutdown.

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  • what does this have to do with the problem? ... while reaching for my mouse Commented Aug 18, 2021 at 1:03
  • The moon key is near my mouse, and the only reason my hand goes near the moon key is when I'm reaching for my mouse. Commented Aug 18, 2021 at 3:36
  • I need to test an idea around /etc/elogind/logind.conf and HandleSuspendKey and similar settings. Commented Jan 23 at 21:26

1 Answer 1

Reset to default
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The moon key on a Sun keyboard appears to count as a "power" button to elogind.

Modifying /etc/elogind/logind.conf to include the setting HandlePowerKey=ignore (followed by a loginctl reload) prevents the moon key from shutting down my computer.

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