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Thread: black screen on opening lid

  1. #1
    Join Date
    Jan 2008
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    Kiwi in México
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    Xubuntu 14.04 Trusty Tahr

    black screen on opening lid

    Hi all,

    I was hoping someone could suggest which log would be the best one to try and diagnose a weird issue I am having with my clean install of Xubuntu 14.04 running on a Samsung laptop (about a year old).

    I am trying to work out if it is a kernel issue with my hardware or the graphics driver (intel i3 cpu).

    Here's whats happening: I'll close my laptop lid and go away for a few hours. When I come back and open the lid I just get a black screen. The laptop is on but I can't do anything at all to get it to come back to life. I have to hold the power button in to poweroff ungracefully.

    I am unable to drop to another login.

    I have disabled suspend and hibernate in the xfce4 power manager.

    I have even applied a hack I found online to permanently disable suspend and hibernate.

    Still the problem happens. Not everytime, just randomly. This was not an issue for me in the previous xubuntu.

    Kernel or graphics?

  2. #2
    Join Date
    Jun 2009
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    Xubuntu 13.04 Raring Ringtail

    Re: black screen on opening lid

    is it set to ask for a password on wake? my laptop is set like that and there is a issuer with lite-locker, xscreensaver is a decent workaround
    http://ubuntuforums.org/showthread.p...8#post13022158
    Laptop: ASUS A54C-NB91 (Storage: WD3200BEKT + MKNSSDCR60GB-DX); Desktop: Custom Build - Images included; rPi Server
    Putting your Networked Printer's scanner software to shame PHP Scanner Server
    I frequently edit my post when I have the last post

  3. #3
    Join Date
    May 2014
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    4

    Re: black screen on opening lid

    I had that issue and I resolved like this:

    1. open your terminal(ctrl+alt+T)
    2.type: nano ~/Documents/mydocname
    3.inside nano editor copy paste these lines:
    #!/bin/bash
    echo "your_admin_password"| sudo -S service lightdm restart
    4.save it by typing ctrl+x and press enter
    5.go to keyboard settings, and choose shortcuts card
    6.press add new and navigate to your file(mydocname)
    7.choose your combination
    8.that's it, when you get black screen, just press your key combination

    it's probably newbie but it works, also i searched for forums and didn't find any solution that actually worked
    Last edited by edo_kanii; May 16th, 2014 at 04:57 PM.

  4. #4
    Join Date
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    Re: black screen on opening lid

    that will terminate your session and return you to the login screen
    try this script instead
    https://bugs.launchpad.net/ubuntu/+s...36/comments/11
    the 1366x768 is the screen resolution
    Laptop: ASUS A54C-NB91 (Storage: WD3200BEKT + MKNSSDCR60GB-DX); Desktop: Custom Build - Images included; rPi Server
    Putting your Networked Printer's scanner software to shame PHP Scanner Server
    I frequently edit my post when I have the last post

  5. #5
    Join Date
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    Ubuntu Studio

    Re: black screen on opening lid

    Well, I had the same Issue with my Samsung 305E5Z and had raised a bug report, when in Beta.
    https://bugs.launchpad.net/ubuntu/+s...x/+bug/1306549

    Please read the Comments of the bug report,
    my problem was fixed using the then latest main line kernel which I am still using with no problems

    ~$ uname -r
    3.14.0-031400-lowlatency
    I guess it is both graphics and kernel.
    bhatta

    May the Source be with you !
    Ash nazg durbatulûk, ash nazg gimbatul, ash nazg thrakatulûk, agh
    'Buntu-ishi krimpatul !

  6. #6
    Join Date
    Jan 2008
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    Xubuntu 14.04 Trusty Tahr

    Re: black screen on opening lid

    Phew! glad I am not the only one. I've had a few weird issues with the kernel but each set of updates seems to sorting things out.

    Thanks, guys, I will try these solutions today.

    If I don't experience the problem again for a few days I'll mark it is solved!
    Last edited by slumbergod; May 16th, 2014 at 09:11 PM.

  7. #7
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    Re: black screen on opening lid

    the script thing does not fix the issue, just when it happens you press the keyboard shortcut and it fixes the display
    Laptop: ASUS A54C-NB91 (Storage: WD3200BEKT + MKNSSDCR60GB-DX); Desktop: Custom Build - Images included; rPi Server
    Putting your Networked Printer's scanner software to shame PHP Scanner Server
    I frequently edit my post when I have the last post

  8. #8
    Join Date
    May 2014
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    4

    Re: black screen on opening lid

    as I didn't know any better solution, i simply thought it's better to terminate session then restarting pc

  9. #9
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    Re: black screen on opening lid

    it is better, but the other script is better still, at least you can close your apps and dont kill them then log out and in to fix the mouse cursor
    Last edited by pqwoerituytrueiwoq; May 18th, 2014 at 12:45 AM.
    Laptop: ASUS A54C-NB91 (Storage: WD3200BEKT + MKNSSDCR60GB-DX); Desktop: Custom Build - Images included; rPi Server
    Putting your Networked Printer's scanner software to shame PHP Scanner Server
    I frequently edit my post when I have the last post

  10. #10
    Join Date
    Feb 2011
    Beans
    6

    Re: black screen on opening lid

    Hello,

    I am having the exact same issue on my ThinkPad Edge. The script using xrandr helped me as far as avoiding the hard reboots after almost each wake up... however, there is still the issue with the missing mouse pointer.

    Installing a mainline kernel build did unfortunately not help:

    Code:
    christoph@christoph-ThinkPad-Edge:~$ uname -r
    3.14.1-031401-generic
    and I am still experiencing exactly the same behavior as with the standard Kernel 3.13.



    Edit: if the mouse pointer is missing it suffices to press Ctrl+Alt+Del and enter the password to resume the session, then the mouse pointer should be back and things should work normally again; no need to close any of the running apps.
    Last edited by chw1984; May 18th, 2014 at 01:03 PM.

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