Home / ubuntu / Questions / 722470
Accepted
Olimjon
Asked: 2016-01-19 04:29:55 +0800 CST

Black Screen ubuntu 15.04

  • 772

This is duplicate. But the older questions were not answered. So, you can count that this a reminder question (if no answer, I will set bounty).

I have Ubuntu 15.04. Sometimes, when I open the laptop and log-in, the display is filled with black screen. But everything is running (I can even enter to the tty by CtrlAltF1 (tty mode is displayed) and exit), only the display is not working. So, I need to reboot. After reboot, the system works normally.

I need cause of this problem alongside answer. So, please do not hesitate to write detailed. Any help will be much appreciated.

My tries: updated NVIDIA drivers, used Nouveau display drivers. And I concluded that this not driver fault.

1st Update: I use lightdm-gtk-greeter.

2nd Update: I installed deb file from the link and this is the output from unity-reset:

Traceback (most recent call last):
  File "/usr/bin/unity-reset", line 67, in <module>
    subprocess.call("unity")
  File "/usr/lib/python2.7/subprocess.py", line 522, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1335, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

I think full download is needed... I will try to download it in 1-2 days then update the results.

3rd Update: Reinstalling lightdm-gtk-greeter did not work. I get black screen after second close-open...

4th Update:

$ find /usr/sbin/ -name "*dm"
/usr/sbin/lightdm

$ ps ax | grep dm
846 ?        SLsl   0:00 /usr/sbin/lightdm
853 tty7      Ssl+   1:57 /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
1032 ?        Sl     0:00 lightdm --session-child 12 19
2347 pts/1    S+     0:00 grep --color=auto dm

5th Update: I have noticed that when I close laptop, it sometimes suspends unusually longer and only after that this problem occurs.

15.04

3 Answers

  1. Best Answer

    Even though you assume that it is not a graphics drivers issue ... trying this solution might be a chance to get your problem solved - it worked in many similar cases ... first remove the drivers.

    Highlight the Ubuntu entry in the GRUB boot menu and press the E key.
    Add nouveau.modeset=0 to the end of the linux line - press F10 to boot.

    On the login screen press Ctrl+Alt+F1
    enter user name and password ... execute : 

    sudo apt-get purge nvidia*  
sudo reboot

    Identify the graphics adapter ... execute : 

    lspci -k | grep -EA2 'VGA|3D'

    For GEFORCE 400 - 700 I recommend to install the NVIDIA drivers version 352.
    For GEFORCE 800 - 900 I recommend to install the NVIDIA drivers version 358.

    Installation instructions for NVIDIA drivers version 352 :

    Highlight the Ubuntu entry in the GRUB boot menu and press the E key.
    Add nouveau.modeset=0 to the end of the linux line - press F10 to boot.

    On the login screen press Ctrl+Alt+F1
    enter user name and password ... execute :

    sudo apt-get update
sudo apt-get install nvidia-352
sudo reboot

    Installation instructions for NVIDIA drivers version 358 :

    Highlight the Ubuntu entry in the GRUB boot menu and press the E key.
    Add nouveau.modeset=0 to the end of the linux line - press F10 to boot.

    On the login screen press Ctrl+Alt+F1
    enter user name and password ... execute :

    sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-358
sudo reboot

    Note :

    Generally you should use the NVIDIA drivers from the Ubuntu repositories. But when there are problems with the drivers ... then you can install the latest official NVIDIA drivers from the GPU Drivers PPA. This often leads to properly working graphics, especially on new NVIDIA adapters.

    • 3

  2. I was also facing the same Display issue today with Ubuntu 15.04 and I did following steps through the terminal:

    # cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=15.04
DISTRIB_CODENAME=vivid
DISTRIB_DESCRIPTION="Ubuntu 15.04"


sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri
sudo dpkg-reconfigure xserver-xorg
sudo restart gdm

    Issue has been fixed Now.

    • -2

  3. Have you tried this:

    sudo apt-get install --reinstall unity
dconf reset -f /org/compiz
unity --reset-icon &disown

    and it might work fine this way.

    • -3