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I have two monitors, after locking screen and new login attept to the system both monitors show me a black screen. It happens from time to time. What can i do?

$ uname -r 4.4.0-97-generic

$ lsb_release -a -u No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.3 LTS Release: 16.04 Codename: xenial

$ lsb_release -a No LSB modules are available. Distributor ID: elementary Description: elementary OS 0.4.1 Loki Release: 0.4.1 Codename: loki

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This seems a problem with the gpu driver. What gpu are you using and what kind of driver opensource or closed?

  • Driver closed, NVIDIA Binary Driver 384.90 – user12522 Oct 24 '17 at 8:16
  • lspci | grep -E "VGA|3D" 00:02.0 VGA compatible controller: Intel Corporation Device 5912 (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GK208 [GeForce GT 730] (rev a1) – user12522 Oct 24 '17 at 8:16

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