Do external displays slow down the machine?

Discussion in 'MacBook Pro' started by DudeMartin, Mar 5, 2011.

  1. DudeMartin macrumors regular

    Joined:
    Dec 2, 2010
    Location:
    Chicago, Illinois
    #1
    Hello,

    I just have a quick question. If I were to connect like a 20" display, and then I would project it from my 13" 2011 MacBook Pro using the ThunderBolt port - would I experience ANY sort of slow-down on the machine? Like could I still play my games at the settings that I was playing on before plugging in the display?

    Thanks!
     
  2. ctyhntr macrumors 6502

    ctyhntr

    Joined:
    Jul 21, 2010
    #2
    If you're using an external USB to DVI display adapter, like Diamond, then I say yes, you'll notice system lag, to the point of aggravation. I bought Diamond USB DVI display adapter because I wanted to have more than 1 external monitor, and the associated services were running at 30% of CPU, and the screen was laggy. It would also crash, meaning all my screens would turn blue, and I had to re-run Detect Display. It was good for text and static images, but jerky on videos. I used it for 2 days, gave up and switched back to the built in mini display port, much happier and will live with 1 external display instead of 2.

    As far as I can tell, if you're using the built in mini display port, it shouldn't affect your system. This was with a 2009 15" MacBookPro with 4GB, so results may vary with the speedier 2010 and 2011 machines.
     
  3. DudeMartin thread starter macrumors regular

    Joined:
    Dec 2, 2010
    Location:
    Chicago, Illinois
    #3
    Do you think the addition of Thunderbolt would improve the performance of external displays (outputting to them)?

    Well all that I am really worried about is... would I be able to keep playing on the same settings that I was playing on before, on Team Fortress 2, even when I have my computer plugged into an external display.
     
  4. Vantage Point macrumors 65816

    Joined:
    Mar 1, 2010
    Location:
    New Jersey
    #4
    never noticed any lag and I have used a 2009 MB, 2010 13" MBP and now 2010 15" MBP. I use my external a lot for photo editing in clamshell mode with a wireless keyboard and magic trackpad
     

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