Unable to get 2560x1440 screen resolution

Dell Ultrasharp u2711 27" lcd monitor 25...
November 25, 2010 at 11:14:30
Specs: Windows 7 - 64 bits, i7 980 Extreme / 12 GB corsair Dominator GT ddr3 2000
Hello,
I just changed my Screen to a 27" Ultra Sharp Dell with a max reolsution of 2560 x 1440.
My previous screen did only have a max Resolution of 1920x1080.
Now that i connected my new screen, my PC doesn't indicate me the right resolution for my new screen, but only maximum 1920x1080.
I installed the screen drivers, but nothing.
What can i do ?

PLease help me.


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#1
November 25, 2010 at 11:44:52
What do you mean by screen drivers ? Monitor drivers, or Video drivers ?

You could check to see if there is a newer version of the "drivers" for your video adapter, they might support higher resolutions, but often they don't.
E.g. if you have Intel integrated video, the Intel web site may have a newer version than your brand name or mboard web site does.

If there IS a newer version, un-install the old software in Control Panel - Programs and Features BEFORE you install the newer "drivers" . If you have ATI video, if Catalyst is there in Control Panel - Programs and Features, you should un-install that too. There is often a "master" entry there that un-installs all or almost all of the ATI software in one go.

Try loading the specific drivers for the monitor model. .

If you still can't choose the Optimal or Native resolution , choose a lesser resolution that has the same ratio of width to height, when you divide the width by the height, and switch on Clear Type.

See response 2 and 3 for more info:
http://www.computing.net/answers/ha...


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#2
November 25, 2010 at 11:52:16
I just putted a DVI Cable instead of my High quality HDMI cable in and it detected instantly the correct resolution.
Howcome ? I really bought a very good HDMI cable not a raondom one.

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#3
November 25, 2010 at 12:21:11
HDMI cables carry audio and video. They're meant to be used to connect a tv to the computer.

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#4
November 25, 2010 at 13:22:51
Video adapter's drivers often have different sets of resolutions for VGA and DVI connection modes, if you can connect either way - there are often more to choose from in VGA mode than there are in DVI mode. It sounds like the same thing applies to DVI and HDMI connection modes.

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#5
November 25, 2010 at 14:25:34
HDMI is nothing more than DVI + audio in a single cable. I can't explain why one would allow the proper resolution & the other wouldn't, but do you really need HDMI? Does your monitor have built in speakers?

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#6
November 25, 2010 at 15:50:09
He could try this in HDMI connection mode:

If you can't choose the Optimal or Native resolution , choose a lesser resolution that has the same ratio of width to height, when you divide the width by the height, and switch on Clear Type.
Turn on Clear Type in Windows XP or Vista or Windows 7 - makes type/fonts on LCD screens look clearer:
http://www.microsoft.com/typography...


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#7
November 25, 2010 at 19:08:44
I believe HDMI 1.3 tops out at 1920x1080, or maybe 1920x1200.

Dual-link DVI and HDMI 1.4 can go much higher, but I don't think that particular monitor supports HDMI 1.4. To run at its native resolution you'll have to use DL-DVI or, if it's available, DisplayPort.

HTPC | Pentium M @ 2.82GHz, 2MB L2) | 4GB | 1.0TB | Radeon HD5750 | Blu-Ray
Win 7 Pro | HDMI out to Onkyo TX-SR707 receiver & Samsung Series 5/63"


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