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Thread: GT540M and Optimus Technology

  1. #1
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    Jul 2013
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    [SOLVED] GT540M and Optimus Technology

    I have a Dell L502X laptop with an integrated video card and a nVidia GT540M. The problem is that when a I open the Dota 2 game, everything looks pretty bad:
    dota2_bad.png
    and I think it's because this nVidia Optimus Technology it's using the integrated driver instead of the nVidia one. So I tried to run the game with the optirun command, and after some issues with the library path, I'm stucked in the next problem:
    optirun.png

    Any idea on how can I solve this?
    Last edited by chmunozp; 07-14-2013 at 12:40 PM.

  2. #2
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    https://github.com/ValveSoftware/Dota-2/issues/38

    replace launcher for steam "/usr/bin/steam %U" with "env MESA_GL_VERSION_OVERRIDE=2.1 /usr/bin/steam %U"

  3. #3
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    Quote Originally Posted by chmunozp View Post
    I have a Dell L502X laptop with an integrated video card and a nVidia GT540M. The problem is that when a I open the Dota 2 game, everything looks pretty bad:
    dota2_bad.png

    Any idea on how can I solve this?
    It's a bug. I have Nvidia Optimus 540M. (you can run Dota 2 with primus "primusrun").

  4. #4
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    Jul 2013
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    Yeah, now I realized that I didn't have the primus library installed.

    Image:
    it_works.png
    It's not the best quality but it's way better than before.

    Solution:


    Install the packages of primus:
    Code:
    sudo apt-get install primus
    sudo apt-get install primus-libs-ia32:i386
    The last one is just in case, because I'm using 64 bit linux. Then adding:
    Code:
    primusrun %command%
    to the Launch Options of the game, and then just run it

  5. #5
    I could help I have the same model as your laptop. I am new to fedora 20, you could make a guide to install my video card.
    I am latin american do not understand much English please help.

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