I’m having this issue on my windows box so that won’t be related. It’s also happening when the machine is fully turned off so I wouldnt expect any drivers to be doing anything.

Oh is it display port causing this? I’ve been trying to work out why one of my monitors does this even whole the pc is off for a while.

The main thing I’m learning from this thread is that a surprising number of people don’t shut their machines down when they’re done using them. Which is wild to me.