thunderbolt display issues

Discussion in 'Mac Accessories' started by stevey69, Sep 21, 2011.

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  1. stevey69, Sep 21, 2011
    Last edited: Sep 21, 2011

    stevey69 macrumors regular

    Joined:
    Mar 6, 2009
    #1
    okay , so when i connect the mb air 2011 13" , and if my laptop is open... the max resolution i seem to be getting is 2048x1152. when i close my laptop, i get the full thunderbolt resolution of 2560x1440 . the question is... why ? why can't i keep my laptop open for better venting and still enjoy this full resolution on the display? why do i have to clamshell it? also, when i play games... it seems to stutter... but when i play them on my mba , they work flawless... is it that the air can't handle a crazy resolution like this? please help.

    not to mention, my display just happened to turn off randomly. WHATS GOING ON APPLE?
     
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  2. Toonbay, Sep 22, 2011

    Toonbay macrumors 6502

    Toonbay

    Joined:
    May 25, 2010
    Location:
    Whitley Bay, North East UK (God's Country)
    #2
    Have you done the software update.

    I ran my mba for update the night before i get my TB display as i knew there had been updates as i had installed one a few nights ago but in said all was up to date.

    As soon as i coonected the TB display i ran the software update and it said a TB update was available so installed that and have had no problems at all

    Hopefully thats all you need to do if you have not already
     
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  3. stevey69, Sep 22, 2011

    stevey69 thread starter macrumors regular

    Joined:
    Mar 6, 2009
    #3

    i did the update the moment my thunderbolt was connected. but why does my laptop have to be shut for me to enjoy the full resolution??
     
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  4. Lennyvalentin, Sep 22, 2011

    Lennyvalentin macrumors 65816

    Lennyvalentin

    Joined:
    Apr 25, 2011
    #4
    It might be an issue with the Intel GMA 3000 graphics processor, where it can't drive muliple displays with too many pixels when summed up. Could also be a bug, or just some issue with your particular Lion OS install.

    It's hard to say for sure, really.
     
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  5. richlee111, Sep 22, 2011

    richlee111 macrumors regular

    Joined:
    Feb 27, 2011
    #5
    I might be wrong, but do you have the external monitor set to Mirror? In the display settings, there is a checkbox for "Mirror Display." If that is checked, then the external will display a lower resolution to match the laptop display.
     
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