I actually have the U2713HM and in my experience DisplayPort is a pain in the behind. I don't know if it's the monitor or the connection in general but whichever it is, it seems to suck.
If I move my desktop an inch it will drop the signal completely, I'm not exaggerating one bit. It seems like if I even shake the cable a bit I lose the connection and when it does that it doesn't reconnect at all anymore, at least on Linux, without replugging the cable. Because it's a desktop I have to crawl under the desktop to replug the connection.
At first I was using it on Intel graphics (i7 2600k) and sometimes I didn't get video at all on boot, dmesg had messages about "DisplayPort link training failed" or whatever. I had to reboot to get signal or replug both monitors in specific order and play with xrandr. I also started experiencing massive GPU hangs on Intel, don't know if it's related, but eventually I gave up and bought a passively cooled ATI. I have the same exact problems with that. I even bought a second DisplayPort cable, thinking that might be the problem. Nope. I even keep getting the similar "link training failed" messages with ATI.
The connection seems to work fine if you get it working once and treat the cable like it's cursed and avoid touching anything ever.
Don't know if it's the monitor or the connection in general though. What I do know is that the monitor also buzzes when there's lots of text on the screen (i.e. just open Wikipedia in a browser) which drives me insane at night if it's silent. Googling seems to indicate it's a problem with this model. Some "premium" display huh?
If the future of display connectors is DisplayPort I will cry myself to sleep at night.
I've got two U2713HM. One at work, connected to a Mac Mini (HD4000) via displayport. The other at home using HDMI (so not up to full native res). The only problems have been caused by the Mac Mini (and have happened no matter what the connection being used was). We're also using it to connect a few other large monitors to various Macs.
I don't think your problem is anything to do with displayport. In fact, I'd recommend using it to anyone connecting a large non-Apple monitor to anything with a miniDP or DP connector to drive it. Shame that miniDP to DP cables are so hard to get hold of (down here in NZ, at least).
Edit: I'm running Linux, most of the others are on OS X. As I said, only problems have been the Mac Mini's fault (happens with all connectors and OSes).
Seems more like a Linux Driver/Display Port disagreement (or maybe your hardware) than DisplayPort as a spec. DisplayPort has been spotless on my 2012 MBPr under OS X and Windows. Ditto at work for numerous Lenovo, Dell, and Asus laptops running Windows and various flavors of Ubuntu.
DVI on the other hand, on my MBPr, will occasionally spaz out and display static. I've tried with multiple monitors of the same model with to same effect.
(For what it's worth we pretty much use only Dell 2412 monitors at work).
I have no issues with the following hardware: HP LP2475w monitor (came with a DP cable), Intel DZ77BH-55K motherboard and i7 3770 CPU (HD4000). I use Fedora (Linux).
What sucks is that the DP output is only version 1.1 even if DisplayPort 1.2 was published in 2009.
Because the U2713HM has a DisplayPort.
I actually have the U2713HM and in my experience DisplayPort is a pain in the behind. I don't know if it's the monitor or the connection in general but whichever it is, it seems to suck.
If I move my desktop an inch it will drop the signal completely, I'm not exaggerating one bit. It seems like if I even shake the cable a bit I lose the connection and when it does that it doesn't reconnect at all anymore, at least on Linux, without replugging the cable. Because it's a desktop I have to crawl under the desktop to replug the connection.
At first I was using it on Intel graphics (i7 2600k) and sometimes I didn't get video at all on boot, dmesg had messages about "DisplayPort link training failed" or whatever. I had to reboot to get signal or replug both monitors in specific order and play with xrandr. I also started experiencing massive GPU hangs on Intel, don't know if it's related, but eventually I gave up and bought a passively cooled ATI. I have the same exact problems with that. I even bought a second DisplayPort cable, thinking that might be the problem. Nope. I even keep getting the similar "link training failed" messages with ATI.
The connection seems to work fine if you get it working once and treat the cable like it's cursed and avoid touching anything ever.
Don't know if it's the monitor or the connection in general though. What I do know is that the monitor also buzzes when there's lots of text on the screen (i.e. just open Wikipedia in a browser) which drives me insane at night if it's silent. Googling seems to indicate it's a problem with this model. Some "premium" display huh?
If the future of display connectors is DisplayPort I will cry myself to sleep at night.