I've Xubuntu 16.04.2 installed on dell laptop(UEFI mode). It's the only OS on it. It has nvidea graphics card, which I think is causing the problem.

Now whenever I lock the screen or close the lid, it ends up in a black screen with '-' symbol in the left top corner. I tried 'ctrl-alt-f1' to login but nothing happens. So I've to hard restart my laptop.

So I tried the following things

  • Uninstall light locker and replace it with xscreensaver. Now this solves the locking problem but closing the lid stills results in black screen
  • Also tried resetting light locker settings, but nothing happens.

Don't know what to do about it ? Went through all the post and tried their solutions, but nothing works.

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.