Some more information. Alberto do you mind taking a look: $ systemctl stop gdm.service $ startx xterm
$ xrandr -q --display :0 Screen 0: minimum 8 x 8, current 640 x 480, maximum 16384 x 16384 $ xrandr --listproviders --display :0 Providers: number : 2 Provider 0: id: 0x2d0 cap: 0x0 crtcs: 0 outputs: 0 associated providers: 0 name:NVIDIA-0 Provider 1: id: 0x46 cap: 0x2, Sink Output crtcs: 3 outputs: 4 associated providers: 0 name:modesetting $ xrandr --setprovideroutputsource modesetting NVIDIA-0 --display :0 X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 35 (RRSetProviderOutputSource) Value in failed request: 0x2d0 Serial number of failed request: 16 Current serial number in output stream: 17 $ xrandr --auto --display :0 X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 7 (RRSetScreenSize) Serial number of failed request: 14 Current serial number in output stream: 16 $ xrandr -q --display :0 Screen 0: minimum 8 x 8, current 640 x 480, maximum 16384 x 16384 $ xrandr --listproviders --display :0 Providers: number : 2 Provider 0: id: 0x2d0 cap: 0x0 crtcs: 0 outputs: 0 associated providers: 0 name:NVIDIA-0 Provider 1: id: 0x46 cap: 0x2, Sink Output crtcs: 3 outputs: 4 associated providers: 0 name:modesetting -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1559576 Title: Ubuntu GNOME boots to black screen when using proprietary Nvidia drivers on a laptop with Optimus To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/1559576/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs