I see the same with: kubuntu 17.10 Nvidia graphics (G84GL [Quadro FX 570]) Nouveau driver
When power management kicks in to switch off the screen via dpms, then it is impossible to resume operation. As you move the mouse, there is no screenlock screen to enter the password, just a black screen with the mouse cursor. All the relevant KDE/plasma processes are active, and so is the screenlocker process. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/785681 Title: Unable to unblank screen, cursor still present To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/785681/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

