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Thread: radeon hd 4870 x2 sli + 11.04 Natty going black

  1. #1
    Join Date
    Jun 2009
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    4

    radeon hd 4870 x2 sli + 11.04 Natty going black

    Hi ubuntuforums!
    I got me one hell of a supercomputer for all my video-rendering needs. I tried installing ubuntu but didnt make it past the loading screen.
    the problem is my two sli radeon hd 4870 x2 and 11.04 Natty.
    Yesturday i saw the mouse for a sec, OMG!
    Anyways, mostly, i only get a black screen and a totally freezed out computer. ctrl+alt+f1 dont do nothing.
    First time tough, i got a Failed to bind error screen that didnt make any sense.
    Tried 10.04 lts, but there he couldent discover my disc, altough i run it as achi.
    Any ideas?

  2. #2

    Re: radeon hd 4870 x2 sli + 11.04 Natty going black

    Me on the web:

  3. #3
    Join Date
    Jul 2010
    Location
    Finland
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    2,455
    Distro
    Ubuntu

    Re: radeon hd 4870 x2 sli + 11.04 Natty going black

    You have quite a high-end ATI GPU there.
    May very well be that the open source driver (xserver-xorg-video-ati) does not fully support it yet.
    Also if the latest fglrx doesn't not work, there is even less we can do; a proprieatary driver you see.

  4. #4
    Join Date
    Feb 2005
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    425

    Re: radeon hd 4870 x2 sli + 11.04 Natty going black

    The card should be supported by the default driver, but there might be some issues with running 2 cards at the same time. I believe in any case only one of the GPU-cores per card will be enabled.

    fglrx should support multiple cards or cores: http://www.phoronix.com/scan.php?pag...md_4870x2_open

    There are some issues with HD3870X2 reported in http://pad.lv/755715 where also the "fail to bind" messages appear but I think it is a more general R600 issue. I do not know if the dual-GPU (X2) properties cause some common issues here.
    Please use launchpad to search for/report bugs and problems: https://help.ubuntu.com/community/ReportingBugs

  5. #5
    Join Date
    Jun 2009
    Beans
    4

    Re: radeon hd 4870 x2 sli + 11.04 Natty going black

    So, tried to disconnect one of the cards, didnt help. Seems like its the dual gpus messing around.
    I miss the boot in safe grapical mode option
    Im booting up with dual cards to see if can get back to the failed to bind screen again.
    Btw, on Backtrack 4, the fix-vesa command manage to get my screen working with startx. Can i modify installation images to execute that command?

  6. #6
    Join Date
    May 2007
    Location
    Canada
    Beans
    581

    Re: radeon hd 4870 x2 sli + 11.04 Natty going black

    Hi,
    Your card is an R700 series, and according to this chart, you should have very decent support with opensource drivers.
    http://www.x.org/wiki/RadeonFeature

    Try this. At Grub, boot into recovery mode. Once in a recovery terminal, do this:
    Code:
    sudo apt-get purge fglrx
    Code:
    sudo apt-get install xserver-xorg-video-ati
    then, since your card uses KMS, lets make sure you don't have an xorg file
    Code:
    mv /etc/X11/xorg.conf /etc/X11/xorg.conf.bak
    reboot!

    You will have to execute these commands as sudo


    64-Bit Ubuntu! Join the future of computing.

  7. #7
    Join Date
    Feb 2005
    Beans
    425

    Re: radeon hd 4870 x2 sli + 11.04 Natty going black

    cubeist, he is talking about booting the installation media, so he has probably not installed any fglrx drivers.

    Beaverfook, you can boot with the "nomodeset" kernel option to see if X runs better without KMS. I am not sure if the "xforcevesa" option still works. Otherwise, boot with the "text" option, make an /etc/X11/xorg.conf like this:
    Code:
    Section "Device"
     Identifier "mycard"
     Driver "vesa"
    EndSection
    and start X with "sudo start gdm".
    Please use launchpad to search for/report bugs and problems: https://help.ubuntu.com/community/ReportingBugs

  8. #8
    Join Date
    Jun 2009
    Beans
    4

    Re: radeon hd 4870 x2 sli + 11.04 Natty going black

    Finally home from easter vacation!
    If i spam ctrl+alt+f1 while booting and wait for it to load in there and then, after some thinkin ctrl+alt+f7 to the desktop it works like a charm... Trying to install now, i'll be back with a log soon

    oh, btw, the xorg-config did the trick i figured.
    Last edited by Beaverfook; April 22nd, 2011 at 10:01 PM.

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