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Thread: Screen remains blank after start up / reboot

  1. #1
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    Screen remains blank after start up / reboot

    Greetings!

    I recently installed Ubuntu 12.04 on an Acer Aspire 3500 and after experiencing problems with the wireless connection (now resolved thanks to chili555 and wildmanne39), I find the screen remains blank after I either start up or reboot the laptop.

    I find the problem is resolved after pressing CTRL ALT F1 and then CTRL ALT F7. Obviously I don't want to keep doing this, so can anybody help?

    Thanks!

  2. #2
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    Ubuntu 12.04 Precise Pangolin

    Re: Screen remains blank after start up / reboot

    Just found this: http://askubuntu.com/questions/10384...user-or-resume

    It seems it's an old problem maybe related to xgamma... Anyone else?

  3. #3
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    Re: Screen remains blank after start up / reboot

    When you hit Ctrl+alt+F1 , login with username & password . Then give these commands
    Code:
    sudo service lightdm stop 
    sudo apt-get install -f 
    sudo dpkg --configure -a 
    sudo dpkg-reconfigure lightdm xserver-xorg xserver-xorg-core xsever-common xorg
    sudo service lightdm start
    Write down these commands to no mistake .
    Reboot to check the result..
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  4. #4
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    Re: Screen remains blank after start up / reboot

    Hello

    Unfortunately no change - any other suggestions? Thanks

  5. #5
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    Re: Screen remains blank after start up / reboot

    hmmm , strange problem. Try to reinstall
    Code:
    sudo apt-get install --reinstall lightdm
    Also check out your graphics driver.. what it is ? open source or additional ? If you have additional driver enabled , do you want to procedure with an UN-installation (disable) ?

    There is also something else.. try
    Code:
    sudo update-grub 
    sudo update-initramfs -u -k all
    Last edited by NikTh; July 8th, 2012 at 05:11 PM.
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  6. #6
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    Re: Screen remains blank after start up / reboot

    Hello again NikTh

    Here's the output of the commands you asked me to check:


    graham@graham-Aspire-3500:~$ sudo apt-get install --reinstall lightdm
    [sudo] password for graham:
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    The following packages were automatically installed and are no longer required:
    compiz-plugins compiz-plugins-main python-compizconfig python-central
    Use 'apt-get autoremove' to remove them.
    0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
    Need to get 96.3 kB of archives.
    After this operation, 0 B of additional disk space will be used.
    Get:1 http://au.archive.ubuntu.com/ubuntu/ precise/main lightdm i386 1.2.1-0ubuntu1 [96.3 kB]
    Fetched 96.3 kB in 1s (89.7 kB/s)
    Preconfiguring packages ...
    (Reading database ... 200507 files and directories currently installed.)
    Preparing to replace lightdm 1.2.1-0ubuntu1 (using .../lightdm_1.2.1-0ubuntu1_i386.deb) ...
    Unpacking replacement lightdm ...
    Processing triggers for ureadahead ...
    ureadahead will be reprofiled on next reboot
    Processing triggers for man-db ...
    Setting up lightdm (1.2.1-0ubuntu1) ...
    graham@graham-Aspire-3500:~$
    graham@graham-Aspire-3500:~$
    graham@graham-Aspire-3500:~$ sudo update-grub
    Generating grub.cfg ...
    Found linux image: /boot/vmlinuz-3.2.0-26-generic-pae
    Found initrd image: /boot/initrd.img-3.2.0-26-generic-pae
    Found linux image: /boot/vmlinuz-3.2.0-25-generic-pae
    Found initrd image: /boot/initrd.img-3.2.0-25-generic-pae
    Found linux image: /boot/vmlinuz-3.2.0-23-generic-pae
    Found initrd image: /boot/initrd.img-3.2.0-23-generic-pae
    Found memtest86+ image: /boot/memtest86+.bin
    done
    graham@graham-Aspire-3500:~$
    graham@graham-Aspire-3500:~$
    graham@graham-Aspire-3500:~$ sudo update-initramfs -u -k all
    update-initramfs: Generating /boot/initrd.img-3.2.0-26-generic-pae
    update-initramfs: Generating /boot/initrd.img-3.2.0-25-generic-pae
    update-initramfs: Generating /boot/initrd.img-3.2.0-23-generic-pae
    graham@graham-Aspire-3500:~$

    Can you show me how to check the graphics driver and what I should do next? This time the screen came on when I started up but again went blank after about 10 minutes and the only way I could turn it on was to type CTRL ALT F1 then CTRL ALT F7.

    Thanks

  7. #7
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    Re: Screen remains blank after start up / reboot

    Quote Originally Posted by pauloz View Post
    Can you show me how to check the graphics driver and what I should do next? This time the screen came on when I started up but again went blank after about 10 minutes and the only way I could turn it on was to type CTRL ALT F1 then CTRL ALT F7.
    You can give this command and see what driver you use.. for graphics ..
    Code:
    lspci -nnk | grep -iA2 vga
    Depends on graphics driver , you can install or uninstall an see how goes.
    Also you have packages that no longer required so run this command to get rid of them (they are useless)
    Code:
    sudo apt-get autoremove
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  8. #8
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    Screen remains blank after start up / reboot - POSSIBLE BUG WITH LIGHTDM - Cedarview

    Hi!

    When installing Lubuntu 12.04 with Cedarview drivers (for Atom N2800 on DN2800MT motherboard), I had a similar problem. Please see my several entries on blog at http://daily.siebler.eu/2012/06/ubun...d-d2000-serie/

    The upshot is that I removed lightdm and installed gdm and Lubuntu booted right away, with the desired drivers. I think that lightdm has some dependencies or bugs that need to taken care of.

    Phil Troy

  9. #9
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    Re: Screen remains blank after start up / reboot

    Quote Originally Posted by NikTh View Post
    You can give this command and see what driver you use.. for graphics ..
    Code:
    lspci -nnk | grep -iA2 vga
    Depends on graphics driver , you can install or uninstall an see how goes.
    Also you have packages that no longer required so run this command to get rid of them (they are useless)
    Code:
    sudo apt-get autoremove
    Hello NikTh - here is the output of what you mentioned:


    graham@graham-Aspire-3500:~$ lspci -nnk | grep -iA2 vga
    01:00.0 VGA compatible controller [0300]: Silicon Integrated Systems [SiS] 661/741/760 PCI/AGP or 662/761Gx PCIE VGA Display Adapter [1039:6330]
    Subsystem: Acer Incorporated [ALI] Device [1025:0082]
    Kernel modules: sisfb
    graham@graham-Aspire-3500:~$ sudo apt-get autoremove
    [sudo] password for graham:
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    The following packages will be REMOVED:
    compiz-plugins compiz-plugins-main python-central python-compizconfig
    0 upgraded, 0 newly installed, 4 to remove and 2 not upgraded.
    After this operation, 5,959 kB disk space will be freed.
    Do you want to continue [Y/n]? Y
    (Reading database ... 200506 files and directories currently installed.)
    Removing compiz-plugins ...
    Removing compiz-plugins-main ...
    Removing python-central ...
    Removing python-compizconfig ...
    Processing triggers for gconf2 ...
    Processing triggers for man-db ...
    graham@graham-Aspire-3500:~$

    @ Phil - sorry I made a mistake when I selected the options. I'm running Ubuntu 12.04 not Lubuntu 12.04. Thanks anyway for your post.

    Cheers
    pauloz

  10. #10
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    Re: Screen remains blank after start up / reboot

    Quote Originally Posted by pauloz View Post

    graham@graham-Aspire-3500:~$ lspci -nnk | grep -iA2 vga
    01:00.0 VGA compatible controller [0300]: Silicon Integrated Systems [SiS] 661/741/760 PCI/AGP or 662/761Gx PCIE VGA Display Adapter [1039:6330]
    Subsystem: Acer Incorporated [ALI] Device [1025:0082]
    Kernel modules: sisfb
    Hmmm... you have SIS. Sorry i cannot help you with SIS. I don't know those cards , but i know that have strange behaviour with Linux.
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