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I have an Acer Aspire-8930G laptop and I want to connect it to my 27" screen. The graphic card is NVIDIA 9700M, which supposedly supports up to two screens with 2560x1440 resolution.

The laptop has a HDMI out and the monitor needs a DVI-D (Dual Link). I have a Dual Link Cable and an adapter.

But the maximum resolution that it lets me choose is 1280x800 pixels! If I choose in the advance settings to show all possible resolutions I can also choose 1920x1080 32 bit, but it is also not what I want.

What do I have to do to choose the native resolution 2560x1440?

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how can i find out that? the cable is the original and the adapter has all pins used: sound-affair.com/image/data/Cables_and_Parts/… –  rubo77 Jan 5 '13 at 0:06
    
Crap. I will delete the comment. My mind was on DisplayPort to DVI conversion. HDMI to DVI should be simple since HDMI basically is DVI+sound. I do not see why it would not 'just work' (though obviously it does not, else you woult not be posting here). –  Hennes Jan 5 '13 at 0:31
    
HDMI can not be converted to dual link DVI. –  Brian Jan 5 '13 at 0:58
    
Displayport to DVI-D conversion is possible with an active converter/cable. Most include a USB cable for power. –  Brian Jan 5 '13 at 1:11
    
Did you connect the monitor in extend mode (Windows+P)? In mirror mode the common resolution is the lower of the two screens because of course you cannot display that resolution on your laptop unless it's really that high –  Lưu Vĩnh Phúc Jun 5 at 8:24

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