boot - Display issue on Toshiba Satellite P75-A7200

17
2014-04
  • Aric Sponsler

    I am fairly new to Linux and Ubuntu and I am sure this is a simple issue.

    The screen is really dark on the boot up and it looks like it is off. I've found out that if I plug a monitor and boot, I can see what is going on. If I unplug the extra monitor then the screen resizes and works perfectly fine.

    I thought that it might be a driver issue so I downloaded the Intel Linux Graphics Driver program. That seemed to take care of some of the other issues but not the display issue. If I reboot I have to plug a monitor and go through the same process.

    I was wondering if anybody had a fix for me? I have been surfing the web trying to find solutions, but to no avail.

  • Answers
  • ejno

    I have this laptop working perfectly with Linux after setting GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub:

    GRUB_CMDLINE_LINUX_DEFAULT="acpi_osi=Linux acpi_backlight=vendor quiet splash"
    

    Then run sudo update-grub and reboot.

    You should be able to edit the file with this command: sudo gedit /etc/default/grub

    If you haven't installed yet, you can add these parameters when booting the LiveCD as well (but you'll need to add them after installing, too).

    Source: http://ubuntuforums.org/showthread.php?t=2161204&p=12727148#post12727148

    Also, what "other issues"?


  • Related Question

    ati - Toshiba Satellite S855 & Ubuntu 12.10 & Radeon HD 7600M issues
  • Eduardo Quirós-Campos

    I just got a Toshiba S855 (i7-3630QM) machine, with Windows 8 pre-installed, and have been through a nightmare to make it work alongside Ubuntu 12.10.

    Making it dual boot was not the issue, after I found the proper instructions on how to deal with the UEFI stuff. The problem came after having it boot into Ubuntu; at first the OS booted fine, but after installing the recommended updates, the screen just went crazy; only a small frame at the top, flickering, and no access to text-mode screens either.

    After booting into recovery mode, I found that X was reporting a problem accessing the ATI card's VBIOS, resulting in a 'No Screen Found' error.

    I tried nearly everything I found around ... removing fglrx*; reinstalling the linux headers after or before fglrx; used the ATI drivers; used the OpenSource drivers; to no avail.

    After 3 or 4 reinstallations, I found that the issue is being caused by the latest kernel image suggested by the update manager. The USB image I used for installing came with 3.5.0-17, and the update manager suggested 3.5.0-26. So what I did was to lock the former version in Synaptic, applying all updates but the kernel update, and Ubuntu is working like a charm now.

    I'm aware that maybe having an outdated kernel is not the best solution, but it was the only way I found to make it work.

    So, can anyone out there confirm that there are issues with the latest suggested kernel updates and ATI Radeon cards? The (horrible) downside on Toshiba machines is that the built-in Intel GPU is not accessible, so no way of switching over to Intel graphics.

    Is there an easy way to go back to a previous kernel image after reinstalling a new one? I know that old entries are kept in GRUB, but in my case, after installing 3.5.0-26, even booting into 3.5.0-17 did not worked well ... same screen freeze issue.

    How can I know if 13.04 will break my install?

    Any light on this will be appreciated.


  • Related Answers
  • Sadi

    I've got a little less severe display problem using open source drivers for AMD Radeon 7400M Series under Ubuntu 12.10 when I recently upgraded kernel from 3.5.0-26 to 3.5.0-27 which I could luckily solve by simply selecting the previous version from the Grub menu and then removing the latest kernel packages.

    If you continue experiencing such severe problems it seems you might like to use a Clonezilla live CD/USB to make a backup of your Ubuntu partition before a kernel upgrade as probably a better alternative to having to re-install Ubuntu.

    Another thing you can perhaps consider doing might also be trying Ubuntu 13.04 first from a live DVD/USB before upgrading.