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Thread: Dual screen problem with HD4850

  1. #1
    Join Date
    Jul 2006
    Posts
    442

    Dual screen problem with HD4850

    Hello,
    I have a problem with my asus hd4850 when I add a second monitor to my VGA card and I overclock slightly my card (1Mhz additional needed).
    During a reboot, I have a green screen on my main screen, the other when it remains off!
    Thank you in advance for your help!!
    "When they give you ruled paper, write the other way..." J.R.J.

  2. #2
    Join Date
    Mar 2004
    Posts
    1,059

    Re: Dual screen problem with HD4850

    Hi,
    Perhaps the Graphics card does not like overclocking on 2 screens. Or it mismanages the 2 screens and resolutions ?

  3. #3
    Join Date
    Dec 2007
    Posts
    1,547

    Re: Dual screen problem with HD4850

    Hi
    Do you have the same frequency control on the two monitors? to set the same resolution and frequency ?

  4. #4
    Join Date
    May 2008
    Posts
    1,467

    Re: Dual screen problem with HD4850

    The monitors are 2 different technologies. My main screen is a 19 "LCD (1208x1024 60Hz) and the second is a CRT 17" (1280 x 1024 75Hz). But ok, I'll try to save the CRT at 60Hz and retest.
    What is strange is that if I overclock it would not be small as 1 MHz on the GPU or memory.
    Without overclock, it works niquel.

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