[07:50] popey, popey__, I've been thinking about what you said and reading more about C-states. It might be possible to fix your (and other peoples) issue in mutter but I need more info like CPU model, and what C-states the CPU is in if you don't limit it (run powertop to find out?) [07:53] I am keen to get some kind of fix in to mutter that doesn't require people Googling forums and adding kernel parameters [07:54] Also a simple test case for what's fast/slow with/without the kernel parameter [09:59] Oh well. popey, popey__, if you can please open a bug about your C-states experience I would like to look into it. Happy new year... [15:49] I can help test with a T470s i5-6300U duflu