2011 15" MBP 6750m, Steam + Half Life 2 = Choppy?

Discussion in 'MacBook Pro' started by Ceebee1980, Apr 6, 2011.

  1. Ceebee1980 macrumors regular

    Joined:
    Mar 30, 2011
    Location:
    Chatsworth, CA
    #1
    So I installed Steam and Half Life 2 Demo on my 2011 15" MBP with 6750m.
    I tested it out, and I seem to get great FPS at any resolution settings.
    The problem is that when I "look" around the room or environment, I get this weird horizontal choppy effect where buildings and objects aren't lined up perfectly right. Basically it's as if the image is getting cut, and the bottom or top half is lagging behind by a few frames.
    Is anyone else having this prob? Could it be an OpenGL and/or 6750m issue?
     
  2. Hansr macrumors 6502a

    Joined:
    Apr 1, 2007
    #2
    Enable VSYNC that should fix it. It's a well known fact that the MacOS video drivers are crap and have ridiculous amounts of tearing :(
     
  3. aiqw9182 macrumors 65816

    Joined:
    Apr 22, 2010
    #3
    Open Half Life 2 > Go to Options > Video > Advanced > Wait for vertical sync > Select Enabled > Click apply
     
  4. Ceebee1980 thread starter macrumors regular

    Joined:
    Mar 30, 2011
    Location:
    Chatsworth, CA
    #4
    Thanks brohams. Let me try this out and see if it works.
    So you guys think that it's definitely a driver/tearing issue and not a hardware issue? I don't seem to have any temperature issues.
     
  5. Hansr macrumors 6502a

    Joined:
    Apr 1, 2007
    #5
    Yes, it sounds like a textbook case of tearing:
    http://www.tweakguides.com/Graphics_9.html
     
  6. Erasmus macrumors 68030

    Erasmus

    Joined:
    Jun 22, 2006
    Location:
    Hiding from Omnius in Australia
    #6
    Yeah, I'm not sure it's just a Mac OSX problem. Windows is the same.

    You'd think that software writers would know to put up a new frame when it's ready, not when it's still being drawn (even if it's 2ms slow). Personally, I think that's a pretty obvious oversight.
     
  7. Ceebee1980 thread starter macrumors regular

    Joined:
    Mar 30, 2011
    Location:
    Chatsworth, CA
    #7
    Thanks! Seems like VSYNC fixed it. It's weird, because I feel like I had VSYNC on the first time already =/
    Wonder if it was related to integrated/discrete issues. Hmm....
    It seems like too many new technologies were introduced for Apple to keep up with on these MBPs. Wish 10.6.8 would come along lol
     

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