bgeery
The new 344.48 WHQL drivers seem fix (at least some of) my DisplayPort issues now.  Display on DP works after a restart, without needing to shutdown and disconnect power from PSU before rebooting PC.

it seems strange, most probably you talked too soon :)

bgeery
The workaround worked for me, but no need for it now.  Just tested everything I was having issues with (edited my other post, above).  Everything perfect now with the DisplayPort issues.

What is the workaround you are talking about?
Thanks.

sblantipodi

bgeery
The workaround worked for me, but no need for it now.  Just tested everything I was having issues with (edited my other post, above).  Everything perfect now with the DisplayPort issues.

What is the workaround you are talking about?
Thanks.

Message 5 describes the workaround that I was using.

stevemoore888

bgeery
The new 344.48 WHQL drivers seem to fix all my DisplayPort issues.
 
Display on DP works after a restart, without needing to shutdown and disconnect power from PSU before rebooting PC.  Display also keeps working after switching between surround and extended desktop.  I think I'm all good now!
 
Now, if Nvidia could just figure out how to cleanly switch between surround and extended desktop mode as well as AMD does it.  Sigh.  Well Nvidia finally forced me to find workarounds to most of the issues with using surround mode on the desktop, so I don't really feel the need to switch between them anymore.

I was scared to try them, but you gave me hope. 
 
It fixed mine as well . My 4th monitor now works as it should. 

no driver can fix an hardware problem.
you talked too soon.
there are dozens of people with this new driver that continue to experience the problem.
the problem occurs randomically, so you can't say that it is fixed if it doesn't occur for a while.

sblantipodi

stevemoore888

bgeery
The new 344.48 WHQL drivers seem to fix all my DisplayPort issues.
 
Display on DP works after a restart, without needing to shutdown and disconnect power from PSU before rebooting PC.  Display also keeps working after switching between surround and extended desktop.  I think I'm all good now!
 
Now, if Nvidia could just figure out how to cleanly switch between surround and extended desktop mode as well as AMD does it.  Sigh.  Well Nvidia finally forced me to find workarounds to most of the issues with using surround mode on the desktop, so I don't really feel the need to switch between them anymore.

I was scared to try them, but you gave me hope. 
 
It fixed mine as well . My 4th monitor now works as it should. 

no driver can fix an hardware problem.
you talked too soon.
there are dozens of people with this new driver that continue to experience the problem.
the problem occurs randomically, so you can't say that it is fixed if it doesn't occur for a while.

I don't have a hardware problem. I had a driver issue. 
 
After 10-12 times shutting down/rebooting, I have no problems with my machine coming on within 20 seconds from when I press "Power" to the time I start typing, where before it would hang for 60-80 seconds on a black screen while I waited. 
 
I don't have any problems now. I gamed all night last night wonderfully. ;-)

sblantipodi

bgeery
OUR problems are fixed in the latest driver update.  YOURS may not be.  OUR problems were never random.  YOURS may be.
 
Drivers CAN often workaround hardware bugs, but regardless, and you don't have any data leading to the conclusion that it's a hardware problem in the first place.  You've reached an unsubstantiated conclusion based on a false premise.

It's an hardware problem since most motherboards emits an ERROR BEEP during post before driver is loaded.
This is clearly not a software problem, at least not at driver level.

Then get a new MB .
 
I'm playin' . :-)

Had this issue for 18 months. Computer won't boot into surround (multiple formats throughout time, system is very clean) but if I go into the NV options, turn off Surround and put it back on again it works fine until my next reboot.

I am running 3x GTX 680, 3x Samsung S27A750D's, all on DisplayPort, with one screen plugged into each card. I've complained on Geforce several times over the 18 months without a single reply.

Kinda sitting on my money till something gets done, which, judging my how long I've been waiting, will never happen.

Edit: I have the latest driver from a few days ago but haven't tested it yet. Mainly because it will be about the 20th driver I'll be attempting this on and I'm not expecting much. Will try yet again later today.

This driver fixed my Display port issue too.

I must check if my cable connect 20pin.
Is there someone who pulled off the 20pin to make a try?
 
http://sepczuk.com/techbl...sume-problem-resolved/

i am having displayport issues too. I have an Asus PA238Q and an EVGA GTX 970 SC ACX 2.0 graphics card. My issue seems to be two-fold.
 
1) Switching inputs on my monitor from DVI (laptop) to Displayport (PC) will more often than not (9/10) result in the screen of my PC being fuzzy and blurry and pixelated looking. I will then have to sort through all the inputs again on my monitor before getting the screen to look normal. This takes several tries at times.
 
2) When booting, my PC will splash the start-up screen that displays bios/motherboard logo and then the screen will turn off, as if, there is no signal. The PC is still on. Meanwhile, the monitor seems to be at sleep and flashing "No Video Signal" every few seconds or so. The only way I got it to work was to unplug and replug the DP cable and then press and hold the power button on my PC. This happens every time.
 
I have circumvented the solution by using DVI-I. But, I prefer DP and prefer DP for how Displayport is crisper looking than DVI. Also, down the road, I may want to use Displayport for newer tech.
 
Please help. Is this hardware or software issue. I need to find out soon so I can return the GTX 970 at the store I bought it from, instead of having to mail it out to EVGA down the road, if indeed, it is a hardware issue with the displayport.
 
Thanks.
 
PS--I am also using latest Nvidia driver. 
 
PSS--the problem is not my monitor or my DP cable. I switched out the GTX 970 to my older card (GTX 680) using DP and it works fine.

sblantipodi

cymplex
PSS--the problem is not my monitor or my DP cable. I switched out the GTX 970 to my older card (GTX 680) using DP and it works fine.

My DP cable connects PIN 20, this can damage monitor.
I don't know if GTX780 isolate the 20 PIN and GTX970/980 not.

In this case a 19PIN cable is needed.
I just ordered a 19PIN display port cable and I will report you back if I solved the problem.
 

How do I find out out about this number of pins? And whether or not, my current DP cable is 19 PIN or 20 PIN?
 
Thanks.
 

so what brand/displayport cable do you recommend?
 
I am asking because it is often difficult to find out pin configuration from these cables when looking at them online.
 
Also, what guarantee do you have that, if I buy a 19PIN DP cable per suggestion that it will work?
 
So, you're basically saying that to fix the issue that many of us are experiencing with no video signal on displayports with the GTX 900 series cards is to use a 19PIN DP cable?
 
So, the GTX900 series card is basically protecting itself from the extra 20th pin?

do you have any links as where you get this information that a 20 pin Displayport cable will short out your equipment?

do you have any other link, document from a more professional source? The link you provided was from one person tinkering with the DP cable. 

Any thoughts on this one. Bought it the other day:
 
http://www.newegg.com/Product/Product.aspx?Item=N82E16812816165&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10440897&PID=3891137&SID=rewrite
 
 
Doesn't seem to show up on any of the lists.