WindowServer High CPU usage while connected to external monitor - Big Sur
Hello!
The problem described here in the thread is still not solved even with the latest Big Sur update to 11.5.1!
https://discussions.apple.com/thread/252089464
I have a Macbook Air M1 with a Samsung C32JG52 QHD monitor which I use as an external monitor! After a few hours of operation, the CPU load of the Windows server process sometimes increases to 100%, no matter how many windows I have open - the mouse jerks, videos I play in the browser via Youtube also, etc... even if I then close some windows, the CPU load of the process always jumps back to high values! For that the Macbook has such a power is the behavior shown as soon as you connect an external monitor but to say the least a disaster, a productive work is not possible!
I've had a bit of a speedup by disabling "Displays have seperate spaces" in the System Preferences, but it's still happening.
Is someone from Apple Support reading along here and is this problem, which apparently also affects various others under Big Sur, finally being addressed?