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Thread: I Really Broke My Display Drivers

  1. #1
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    Question I Really Broke My Display Drivers

    So, this happened a while back, but I was fiddling with my display drivers, and I really fouled them up. I now cannot get to the login screen. As soon as I get past GRUB, the screen just flashes on and off showing no image. I can't get to a root console or anything.
    CPU: AMD FX 8120 8-Core Black Edition OC'd to 4.3GHz | Motherboard: Gigabyte GA-990FXA-UD3 | Graphics: Twin Radeon 7870's | Memory: 16GB G.SKILL Ripjaw Series DDR3 1600

  2. #2
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    Re: I Really Broke My Display Drivers

    Can you boot from a LiveCD or USB?

  3. #3
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    Re: I Really Broke My Display Drivers

    Yes. When booting, it'll flash the 'lubuntu' screen, then goes to the flashing.
    CPU: AMD FX 8120 8-Core Black Edition OC'd to 4.3GHz | Motherboard: Gigabyte GA-990FXA-UD3 | Graphics: Twin Radeon 7870's | Memory: 16GB G.SKILL Ripjaw Series DDR3 1600

  4. #4
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    Re: I Really Broke My Display Drivers

    redbikemaster; Hi !

    As a means of fault isolation, trying to preclude hardware issues; TRY;
    Boot the liveDVD, at the purple splash screen -> depress and hold shift key -> language screen, escape key to accept the default -> boot options screen.
    Here f6 key for preset boot options ->arrow down to the preset option(s)space or enter to accept and then the escape key to exit;
    Choose "nomodeset" - for Nvidia and ATI graphics cards ->Enter key to continue the boot process to the GUI desk top.
    Do you get a usable GUI desktop, or else what results from this procedure , did you try some of the other preset boot options ?

    further advise is pending
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubuntu'n !

  5. #5
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    Re: I Really Broke My Display Drivers

    Sorry for being gone so long! Had to replace the PSU for an unrelated thing.

    I can get to a root-level prompt now through recovery mode, so I now just need help with the commands on how to install the default drivers from there.
    CPU: AMD FX 8120 8-Core Black Edition OC'd to 4.3GHz | Motherboard: Gigabyte GA-990FXA-UD3 | Graphics: Twin Radeon 7870's | Memory: 16GB G.SKILL Ripjaw Series DDR3 1600

  6. #6
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    Re: I Really Broke My Display Drivers

    Hello!

    Did you install the proprietary driver earlier?

    You need only remove the proprietary driver and remove or rename /etc/X11/xorg.conf.

    But the method for removing the driver depends on how you installed it.

    Did you install it from the repo; by downloading from ATI and creating a .deb; or by running the .run file from ATI directly?
    The Left Coast Geek * The Community ATI Driver Wiki * Find what you need in the Ubuntu Community wikis

    Don't let the truth get in the way of a good story!
    This universe is crazy. I'm going back to my own.


  7. #7
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    Re: I Really Broke My Display Drivers

    Oh, tough one. I honestly can't remember, as it was over a year ago. Is there a way to check?
    CPU: AMD FX 8120 8-Core Black Edition OC'd to 4.3GHz | Motherboard: Gigabyte GA-990FXA-UD3 | Graphics: Twin Radeon 7870's | Memory: 16GB G.SKILL Ripjaw Series DDR3 1600

  8. #8
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    Re: I Really Broke My Display Drivers

    But you do remember installing a driver?
    The Left Coast Geek * The Community ATI Driver Wiki * Find what you need in the Ubuntu Community wikis

    Don't let the truth get in the way of a good story!
    This universe is crazy. I'm going back to my own.


  9. #9
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    Re: I Really Broke My Display Drivers

    Yep. I definitely installed proprietary drivers. I may have done it via the 'Additional Drivers' GUI.
    CPU: AMD FX 8120 8-Core Black Edition OC'd to 4.3GHz | Motherboard: Gigabyte GA-990FXA-UD3 | Graphics: Twin Radeon 7870's | Memory: 16GB G.SKILL Ripjaw Series DDR3 1600

  10. #10
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    Re: I Really Broke My Display Drivers

    That's the easiest thing, then.

    From the command prompt in recovery mode:

    (Edit: from long familiarity, I forgot to tell you something obvious to me -- you have to mount the drive ...)
    Code:
    mount -o remount,rw /
    to mount the drive in read/write mode

    then

    Code:
    apt-get purge fglrx* fglrx-amdcccle*
    then

    Code:
    mv /etc/X11/xorg.conf /etc/X11/xorg.conf.bak
    The first command removes the driver, the second renames the xorg.conf file. You can remove it later, but I generally recommend renaming things initially just in case you decide you want them back.

    Then reboot.
    Last edited by QIII; January 10th, 2014 at 06:35 AM.
    The Left Coast Geek * The Community ATI Driver Wiki * Find what you need in the Ubuntu Community wikis

    Don't let the truth get in the way of a good story!
    This universe is crazy. I'm going back to my own.


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