Out of the blue Cinnamon started to lag everything I do (CPU % low): Moving windows, typing into a console or any other app - everything is done in slow motion.
I did not install or upgrade anything. The only thing I remember is that I plugged an external Samsung screen into the HDMI port.
Strange, because I did not change my system. But I went ahead and updated the system anyway. But nothing changed for the better. Then I tried the Budgie DE. Budgie was as snappy as Cinnamon used to be until yesterday. So, I guess it is not a video driver thing, there must be something, that has changed (for whatever reason), that Cinnamon doesn’t like.
Any ideas?
Cheers
Paul