I'm having trouble getting Picom set up on my Linux Mint system, specifically with the Cinnamon desktop. After some trial and error with missing libraries, I managed to get the installation sorted out, but now when I try to launch Picom, I get an error saying another composite manager is already running and that it failed to create a new session. I've even tried using `killall picom` before starting it again, but that hasn't worked. I checked with `inxi -Gxx | grep compositor`, and it didn't return anything. I'm looking for guidance on how to resolve this issue and get Picom running properly!
1 Answer
Cinnamon already has its own compositing manager, which is why you're getting that error. It's likely that Picom can't run alongside it. If you really want to use Picom, you could run it in a nested session, though you'll need to find out how to do that. You might want to consider if you really need to run an external compositor at all.
So, are you saying I can't just kill the built-in compositor? How do I set up Picom nested? I’m still learning the ropes since I just switched to Linux a week ago!