How to stop Bazzite from rebooting overnight

I've set power management up such that I hope the system stays on overnight so I can finish installing Steam games on my lower bandwidth connection. Over the last three nights and this afternoon, when I came back it looks like the system reset. The desktop is blank and all apps have been shut down. Firefox has to recover all my previous tabs. What do I need to change to make sure this behavior doesn't happen without my permission?

BedwyrOP•12/22/25, 4:29 AM

I'll change the sleep settings once I have most everything else set up, but I'd like to make sure I understand what my system is doing. Windows was annoying the way it insisted on updating and rebooting. This happening almost every time I leave the PC idle is not great.

Hammer•12/22/25, 4:51 AM

Bazzite shouldn't be rebooting without your permission, this is probably something else

BedwyrOP•12/22/25, 6:23 PM

Ah. Damn.

What logs should I be looking for to track this down? If it’s hardware (asus b650) or not especially?

Pixelguin•12/22/25, 6:42 PM

Run this to see all power events:

last -x | grep -E 'reboot|shutdown' | sed '/reboot/a \\ ' | tac

last -x | grep -E 'reboot|shutdown' | sed '/reboot/a \\ ' | tac

Pixelguin•12/22/25, 6:43 PM

It will tell you when your system went down and whether it was due to a crash

BedwyrOP•12/22/25, 6:47 PM

Roger that thank you.

BedwyrOP•12/22/25, 10:57 PM

reboot system boot 6.17.7-ba20.fc4* Sun Dec 21 20:57 still running

That's the last reboot and I'm 80% sure that was me doing it. The behavior that's driving me slightly batty is that I leave for an extended period and I come back to the Bazzite lock screen, log in, and all my apps have stopped as if the system rebooted. If it's not a machine reboot, what could it be?

BedwyrOP•12/23/25, 12:16 AM

There's another issue with screen brightness not being maintained on wake. I'm pretty sure this is unrelated, but I'll mention it in case there's some connected configuration issue. Frequently I have to manually set my monitors (I use 3) to 90% from 22% over and over when waking them up. Again, that may be a red herring.

How to stop Bazzite from rebooting overnight

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