I often experience task manager (kde taskbar) freeze in case I have a high CPU demand, for example if I have a lot of web browser videos and graphic stuff open.
In this case, clicking anything on taskbar produces no result. I can not use it and also windows of applications are not responsive.
As I have fairly equipped laptop, 64G ram, xeon, … I am wondering if there are some settings that I can tweak in order for my desktop to perform better on exceptional loads?
Doubtful. Check swap settings, and look at swappiness also - have you done anything with swap or swappiness before?
I had to update mine after switching to SSD. I brought swappiness down… sudo sysctl vm.swappiness=20
I believe default is 50 or 60, you can check what you have now with:
Perhaps I found the culprit (dmesg output).
This happens just when I leave keyboard and mouse untouched. I did not issue a “sleep” power command.
How to disable this?