kbin account: e0qdk@kbin.social
This is my Lemmy alt. I’m about 50/50 between kbin and reddthat these days, but my kbin account is more established. If you’re looking for my older posts, check there.
Interests: programming, video games, anime, music composition
I don’t know about KDE in particular, but I’ve had problems with USB mice waking various Ubuntu systems when they’re not directly connected (i.e. there’s a hub or KVM in between it and the computer). The workaround I used for that was to remove the mouse input (e.g. by carefully pressing a physical button on the KVM) – which was good enough for me – but I think there is a programmatic way to block particular classes of input from waking the system if some device is waking your system inappropriately.
Doing a quick search turned up this: https://askubuntu.com/questions/252743/how-do-i-prevent-mouse-movement-from-waking-up-a-suspended-computer – I can’t vouch for any of the specific techniques there though.
Worth noting that while I had a problem with the mouse specifically, other hardware could be causing your system to wake up.