Lightdm high cpu usuage after login

Hi, I've been searching for a while, trying to fix this myself, but no luck so far. I haven't really found any forum posts describing exactly my issue. The problem is that a lightdm process manages to hog the entirety of one core without fail after I log in. This goes on for a few minutes, until it finally calms down. I've checked in /var/logs/lightdm/but couldn't find any errors in the lightdm logs there. For mostly arcane reasons (I really have no idea), I believe this might be related to bumblebee. Any ideas how to even start tackling this problem? It's super annoying to have to listen to my laptop sound like a 747 for minutes on end every time I log in.

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