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Package version is local/gnome-shell 1:47.0-1 (gnome). Everything is up to date.
Recently in the last few weeks I've been hearing my fans ramp up, and looking at htop gnome-shell is using 100% CPU. It stays like this permanently until I log out and back in again. But it doesn't take very long before it goes back to 100% and I have to do it again.
I've disabled all my extensions and it still happens.
I'm not sure if it's related but I've also been getting occasional crashes back to GDM (the logs show core dumps) and on the latest zen kernel "ring gfx_0.0.0 timeout" crashes. I'm using linux-lts at the moment which at least prevents the ring crashes, but the core dumps are still happening occasionally (I'll probably make a separate thread for this).
Is there anything else I could be looking at for the 100% CPU problem?
Thanks.
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I noticed that this happens only when my 4k portable monitor is plugged in. It uses USB-C. I thought it could be something to do with the touch input, so I disabled that with udev, but it still goes to 100% after a while. If I unplug the monitor, it goes back down again.
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