ASUS 2560 x 1440 nightmare!

meme

meme

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I've just purchased the ASUS MX27AQ monitor https://www.asus.com/Monitors/MX27AQ/

It has four HDMI inputs and one DisplayPort input.

I'm running a PC with this ASUS graphics card with a digital DVI output https://www.asus.com/uk/Graphics_Cards/EAH6450_SILENTDI1GD3LP/

I've purchased a DVI>>>>>>DisplayPort cable http://www.ebay.co.uk/itm/381015006738?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT


  • Displayport to DVI-D Cable
  • Converts from the digital video DisplayPort to DVI-D.
  • Perfect for connecting new PC s to older monitors.
  • Connect your legacy DVI equipment to the new DisplayPort interface found on many new PC monitors.
  • Bi directional this cable also allows you to connect from Displayport Outputs to DVI inputs

Now...when I boot up my shiny new ASUS monitor it insists there is no signal going into its DisplayPort.

I've tried most things. Rebooted dozens of times, switched the monitor on an off, unplugged and replugged everything, changed the inputs on the monitor to DisplayPort.

What am I doing wrong? :confused:
 
One thing you would need to do straight off the bat is test that cable on another monitor - I know this isn't always possible but it's the only way to rule out the cable.

Unfortunately when it comes to adapter cables such as these you really do get what you pay for in some cases. I drove myself crazy last year trying to get a MiniDP to DVI cable to get my Macbook hooked up to my monitor that had no displayport - in the end I went through a couple of cheap ones and ended up shelling £15 or so on one from the rainforest and that did it.

Another thing that is worth considering is that some monitors are not happy when 3rd party cables are used. In my experience this has only occurred with one monitor but it simply would not work without the bundled cables that came with it.

Those would be the first 2 places to start. Would it be out of the question to buy a new graphics card? I'm not overly familiar with lower end ones but I'm sure they must come with Displayport out as standard now and not at much cost.
 
From something else I was looking at recently, there can be issues with longer cables not being able to carry the signal/data properly over such a distance. To be fair I was looking at USB3 cables at the time but I assume that can actually be applied to anything.

Ideally you'll want to test the adapter on another computer if possible as suggested above.
 
I chose a 3 metre cable because that's the distance I need and I'm sure they wouldn't sell the monitor if it didn't work with anything other than 3 metres.

I'm sure the cable is fine. It's brand new and from a reputable cable retailer.

From what I can gather there are hundreds of other people on forums having the same problem getting a 2560 x1440 signal to their monitors. Just Google "ASUS no signal DisplayPort".

I'm not using HDMI because (I've been told and it seems correct) that HDMI will only output a maximum of 1920 x 1080 and for anything larger I need DVI or DisplayPort.

The monitor does work with an HDMI cable, but it won't offer me the option to increase the resolution any higher than 1920 x 1080.

The monitor does not have a DVI intput, only a DisplayPort input and a few HDMI inputs.

I'm really stuck! I've updated drivers on my graphics card and tried everything else I could think of!
 
Unfortunately, if you do get the cable working, you will still be limited to 1920 x 1080. This does not carry a Dual-Link DVI signal and therefore the bandwidth will be insufficient for native 2560 x 1440 output. I am not aware of any cables or adaptors which could do that, either.
 
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Are you sure it's not a Dual-Link DVI cable? If you look at this image my cable looks like the one on the bottom. Surely that is Dual DVI?

dual-link-dvi.gif
 
Quick google for max HDMI resolution.

2560x1440 or 2560x1600 via HDMI. A brief summary of our experiences with connecting displays with higher resolutions than 1920x1200 using the HDMI port on notebooks. Although the current HDMI standard (HDMI 1.4) actually supports displays with very high resolutions, you'll face display or graphics card problems.
Click to expand...

Maybe the monitor can only do that higher resolution over the display port though. Like the guy said above, these adapters / cables tend to be a bit hit and miss. I used a DP adapter and it was forever causing grief.
 
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meme said:
Are you sure it's not a Dual-Link DVI cable? If you look at this image my cable looks like the one on the bottom. Surely that is Dual DVI?

dual-link-dvi.gif
Click to expand...

I am quite sure that is only effectively single-link in its bandwidth transfer capabilities. Sometimes the pins are still there but inactive, they aren't always absent. The only adaptors which deal with dual-link DVI and DisplayPort are active converters and they are uni-directional DP - DVI.

I've also not heard of users actually having any luck whatsoever connecting DisplayPort displays using the sorts of cable you're using, even if they claim to be 'bi-directional'. DVI displays to DP on the GPU, yes, but not the other way around.
 
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I'm not using HDMI because (I've been told and it seems correct) that HDMI will only output a maximum of 1920 x 1080 and for anything larger I need DVI or DisplayPort.

The monitor does work with an HDMI cable, but it won't offer me the option to increase the resolution any higher than 1920 x 1080.

HDMI can support 4k, but depends upon hdmi version, I suspect your card can only handle hdmi at 1080

Just noticed, £30 graphic card £400 monitor :P
 
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From the site,

ASUS low profile HTPC and multimedia-focused graphics cards are optimized for smooth 1920x1080 streaming and Blu-ray 3D

You need a new card.
 
andybird123 said:
you'll struggle to get any cable working at 1440 at 3meters, and most of the DVI > DP cables I can find list a maximum of 1080p as well anyway
Click to expand...

I managed to go DVI-D to HDMI over 2 meters @3440x1440 60hz(after custom ress and overclocking) on a 560ti i was using while waiting for my new card. Worked perfectly to my surprise but i had to go through a few adaptors to make it happen..
 
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