Hi I recently installed Ubuntu 18.04 on my laptop. (got a dual graphics card). When I want to restart it shuts down and the HDD stops and when it wants to turn back on the screen is black and nothing happens.

00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 530 [8086:191b] (rev 06)
    Subsystem: ASUSTeK Computer Inc. HD Graphics 530 [1043:1c5d]
    Kernel driver in use: i915
    Kernel modules: i915
01:00.0 3D controller [0302]: NVIDIA Corporation GM107M [GeForce GTX 960M] [10de:139b] (rev a2)
    Subsystem: ASUSTeK Computer Inc. GM107M [GeForce GTX 960M] [1043:1c5d]
    Kernel driver in use: nvidia
    Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
  • 2
    There is no information in your question to help. Most likely you need to install a graphics driver.
    – Pilot6
    Aug 12, 2019 at 17:29
  • I have already installed it. What should i tell so you can help me ? Aug 12, 2019 at 17:38
  • What did you install already?
    – Pilot6
    Aug 12, 2019 at 17:41
  • Proprietary driver 430 for nvidia Aug 12, 2019 at 17:41
  • Please edit your question and add output of lspci -knn | grep -EA3 'VGA|3D' terminal command.
    – Pilot6
    Aug 12, 2019 at 17:44

1 Answer 1


It's a longshot, but maybe the screen is in sleep mode and doesn't turn back on after a restart. This is a note I wrote to myself for when I do formats: "remove the screen locker light-locker on laptop and replace it with xscreensaver; xfce4 power manager doesn't restore screen power so disable 'Display power manager' in its settings"*. So in your power manager, disable its display management so it doesn't go to sleep, or blank, or switch off.

*It's a known bug: https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes/Xubuntu

PS Haven't the reputation to comment.

  • That worked thanks a bunch!!!! Just pasted xrandr in the terminal and got restart worked perfectly. Aug 12, 2019 at 18:35
  • Thanks, man! The new laptop drove me crazy with all the freezes and black screens, finally everything is resolved.
    – Serge P
    Jan 5, 2020 at 23:07

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