I'm using kubuntu 18.04 and from time to time after suspend instead of lock screen I get distorted screen like this: When it happens there is no response from computer and whatever I try to do with keyboard or mouse nothing changes. Only when I move mouse there are nine lines moving like mouse pointer:

All I can do is just reboot computer and after that systems starts normally.

  • Sometimes it helps to specify to the system that upon resume the video kernel module needs to be reloaded. – Ned64 Oct 14 '19 at 8:39

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.