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i'm using ubuntu 14.04 and i'm facing a problem whereby everytime when i boot up, after the the ubuntu logo, my screen just stays black. I have to close and open the lid of my laptop in order to see the screen again. What's the cause of this problem? How can i fix it? I'm using an Nvidia GT820M

akama112
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1 Answers1

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it seems, that there is again a regression for the Nvidia driver and the gpu-manager of Ubuntu.

https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1362848

This is an everlasting and frequently returning problem. Normally this gets fixed within a short time. In the meanwhile you could try a newer driver from ubuntu's "fresh graphics driver" ppa or switch to an intel GPU (if your notebook offers this option) by switching to tty1 (Ctrl+alt+F1), login and sudo prime-select intel followed by sudo service lightdm restart (the same procedure with "nvidia" instead of intel for switching back). Hope this helps fixing your Problem temporarily.

Rene Greuel
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  • hmmm but if i want to play games like dota 2, will it switch back and use the nvidia driver? – akama112 Apr 25 '16 at 14:14
  • It will not switch back automatically. The switch is done by choosing the gpu via prime-select an "rebooting the notebook" or "restart your lightdm-session". If you use the default unity-desktop, you could add the "prime-indicator" which is explained by this link: http://www.webupd8.org/2014/01/prime-indicator-lets-you-quickly-switch.html – Rene Greuel Apr 26 '16 at 08:17
  • yeah i did exactly what you said... apparently, everytime after i switch to nvidia, my whole OS just crashes after logging off. Then it'll show me some screen that says about restarting display and a bunch of codes. I have to manually power it off by holding the power button and powering it on again. – akama112 Apr 26 '16 at 16:08
  • All I can say is that you will have to keep track of the launchpad bug I mentioned above and wait for a fix. The bug lists all nvidia versions from 331 to 364 as "affected". If you can't wait for a fix you could try upgrading to Ubuntu 16.04 LTS. But there is no guarantee if it will help. – Rene Greuel Apr 27 '16 at 09:26
  • I'm on Ubuntu 16.04 and facing the same issue (only when external monitor is connected lid stays blank though) – topr Aug 03 '17 at 15:13