Upgrading to Ubuntu 24.04 has caused the Gnome Tweaks tool to lose its ability to make changes to the setting which effects what happens when the laptop lid is closed. This in turn caused my machine to suspend whenever I changed away from the machine using the KVM.
Unfortunately, with Ubuntu suspending support for 23.10, I needed to go ahead and make the upgrade.
But the good news is that with a little more research, I was able to find the setting which controls the response to the laptop lid being closed. So, without further ado, here it is:
Edit /etc/systemd/logind.conf
Remove the “#” hashtags and change the settings to ignore, then reboot your machine.
HandleLidSwitch=ignore
HandleLidSwitchExternalPower=ignore
HandleLidSwitchDocked=ignore
That is all there was to it. Too simple!!!
I hope this helps someone else,
Robba