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2560x1440 from laptop

post #1 of 7
9/24/12 at 12:58pm
Thread Starter 
We have one of those cheap 2560x1440 korean displays at work, and want to move it to be the display for a laptop. It only has a DVI port, no other input. All laptops we'd use have HDMI, VGA, and USB3 ports. HDMI seems like it won't work.

I've found a Lenovo USB3 dock that seems to support 2560x1600 over DVI, but doesn't seem to be available anywhere. There's also a USB3 to Display port adapter, but then we'd probably have to get an active DP>DVI, and nobody likes chaining converters tongue.gif.

Anyone know of a good VGA>DVI converter that would actually support that high of a res, or a USB3 solution?
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post #2 of 7
9/24/12 at 5:57pm
i'd like to know this as well for my portable office.
Desc's 7680x1440 Immersion
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post #3 of 7
9/25/12 at 2:10am
I've tried many different connection types and adapters.... the only way I know of a Laptop that can support 2560x1440 is if it has a displayport output.
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post #4 of 7
9/26/12 at 12:08pm
Thread Starter 
Here's a USB adapter that does 2560x1600... it's displayport though.

http://intrl.startech.com/AV/USB-Video-Adapters/USB-3-to-Displayport-Video-Card-Multi-Monitor-Adapter-2560x1600~USB32DPPRO
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post #5 of 7
11/1/12 at 2:16pm
Has anyone tested any of these options? I have not yet been able to use this monitor with any laptops.

I just received my mini display to DVI-D active adaptor. The laptop I am testing with is an ASUS G75VW which has an nvidia GTX660M with 2GB dedicated memory. I am running Ubuntu 12.10.

When I plug in the monitor with the active adaptor, it is being recognized by nvidia setting tool as a 800x600 resolution monitor. Nvidia setting does not provide the option to change this resolution to anything else. Obviously the monitor is not properly detected. I have tried to force nvidia to set the resolution of monitor to 2560x1440 by editing the xorg.conf. I tried a few different suggestions that I saw, and if anyone interested I can share what I tried, but I have NOT been able to see a picture out of this monitor from my laptop. When I try to enable the monitor, or restart the machine, the monitor green light goes on and I can tell the back-light goes on -- but the signal is no good and there is no image. This monitor is working with my desktop perfectly fine. Do you think this is hardware issue or has to do with my driver/xorg configuration?

What should I try next? I am thinking about returning the laptop if I can not get it to work with this monitor. If you had success with any type of adaptors please let everyone know!
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post #6 of 7
11/1/12 at 3:00pm
Thread Starter 
Someone in another thread got the official apple miniDP to dual link DVI adapter to work on their macbook. I don't see why the one you got wouldn't work though.
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post #7 of 7
11/1/12 at 9:48pm
Quote:
Originally Posted by arasbm View Post

This monitor is working with my desktop perfectly fine. Do you think this is hardware issue or has to do with my driver/xorg configuration?
What should I try next? I am thinking about returning the laptop if I can not get it to work with this monitor. If you had success with any type of adaptors please let everyone know!
It's most likely because these monitors expose a known-bogus EDID dataset. You'll need to either set the modeline manually in Xorg.conf or set the EDID information to point to a patched one. Take a look at http://www.overclock.net/t/1270861/potalion-2710qw-monitor-club/290#post_17864020
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