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Thread: ATI proprietary driver crashes at boot

  1. #1
    Join Date
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    ATI proprietary driver crashes at boot

    Hello,

    I've installed Ubuntu 9.04 (64-bit) on my external hard drive.

    The default (open-source) video driver works but has a slow frame rate.

    Tried the restricted ATI driver, but then the system crashes when X is started, leaving my screen with a bit of garbled graphics.

    Also tried downloading the latest ATI Catalyst driver from the ATI site. But it still crashes.

    Because of the slow frame rate I can't watch videos decently. It plays choppy.

    I have an ATI 3870 X2 video card.

    Anyone know of a solution?

    Thanks in advance!

  2. #2
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    Re: ATI proprietary driver crashes at boot

    I've read that it might crash because of a wrong MTRR table...
    See this topic:
    http://ubuntuforums.org/showthread.php?t=815521

    This is my MTRR table:
    reg00: base=0x000000000 ( 0MB), size=65536MB, count=1: write-back
    reg01: base=0x0bff00000 ( 3071MB), size= 1MB, count=1: uncachable
    reg02: base=0x0c0000000 ( 3072MB), size= 1024MB, count=1: uncachable

    Does seem like kind of an odd table...

    But I don't know what it should be like.

    I've used the utility mtrr-uncover, which automatically tries to determine a correct MTRR table. Then I do not crash when starting X, but it does fail.

    The MTRR utility returns this:
    Initial MTRR configuration:
    0 0x000000000-0xfffffffff write-back
    1 0x0bff00000-0x0bfffffff uncachable
    2 0x0c0000000-0x0ffffffff uncachable

    Final MTRR configuration:
    0' 0x000000000-0x07fffffff write-back
    54' 0x080000000-0x0bfffffff write-back
    1 0x0bff00000-0x0bfffffff uncachable
    53 0x100000000-0x1ffffffff write-back
    52 0x200000000-0x3ffffffff write-back
    51 0x400000000-0x7ffffffff write-back
    50 0x800000000-0xfffffffff write-back

    Commands for /proc/mtrr to make these changes:
    disable=0
    disable=2
    base=0x000000000 size=0x080000000 type=write-back
    base=0x080000000 size=0x040000000 type=write-back
    base=0x100000000 size=0x100000000 type=write-back
    base=0x200000000 size=0x200000000 type=write-back
    base=0x400000000 size=0x400000000 type=write-back
    base=0x800000000 size=0x800000000 type=write-back


    I've also read that changing to 32-bit Ubuntu might help...
    But then of course I cannot access all of my 4 GB of RAM.

  3. #3
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    Re: ATI proprietary driver crashes at boot

    Damn. Changing to 32-bit Ubuntu 9.04 doesn't work either.
    I've got the same MTRR table.

  4. #4
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    Re: ATI proprietary driver crashes at boot

    Hm, it doesn't give me any error when I do:
    dmesg | grep mtrr

  5. #5
    Join Date
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    Re: ATI proprietary driver crashes at boot

    Quote Originally Posted by Entity` View Post
    I used mtrr uncover, but I don't know how to fix my mtrr table.

    Code:
    0 0x000000000-0x07ffffff write-back
    1 0x080000000-0x0bffffff write-back
    2 0x0c0000000-0x0cffffff write-back
           3 0x0cff00000-0x0cfffffff uncachable
    4 0x100000000-0x11ffffff write-back
    5 0x120000000-0x12ffffff write-back
    Where do I go from here?
    Thats what I posted in the linked thread. I don't know where to go cause im not very good at linux commands. Be aware that I am using the 32bit version of ubuntu.

    PC config:
    Gigabyte GA-MA790xt UD4P motherboard
    HIS Radeon 4850 video card
    AMD Phenom II X3 @ 2.6GHz
    4GB of G.Skill Ram @ 1366MHz
    Last edited by Entity`; May 24th, 2009 at 05:23 PM.
    E*

  6. #6
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    Re: ATI proprietary driver crashes at boot

    Quote Originally Posted by Entity` View Post
    Thats what I posted in the linked thread. I don't know where to go cause im not very good at linux commands. Be aware that I am using the 32bit version of ubuntu.

    PC config:
    Gigabyte GA-MA790xt UD4P motherboard
    HIS Radeon 4850 video card
    AMD Phenom II X3 @ 2.6GHz
    4GB of G.Skill Ram @ 1366MHz
    I'm using the 32-bit version also now, because I thought it could change things (read it somewhere). But things didn't change.

    If you want to access all of your 4 GB of RAM, you should install the 64-bit version of Ubuntu.

  7. #7
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    Re: ATI proprietary driver crashes at boot

    Hm. I think I can watch videos fluently now...
    Still using the open-source driver though.
    The proprietary driver crashes.

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