I wrote to EVGA, they sent me a new BIOS to fix the problem.
I have done the simple instructions, the update.exe gived me this error:
 

update.exeNVIDIA Firmware Update UtilityVersion 5.196 *** IMPORTANT ***Do not turn off the computer or attempt to reboot your computer while theNVIDIA firmware is being updated. If the computer is turned off, orpower is lost, you may be unable to restart your computer.Searching for display adapters to update...ERROR: Error attempting to unmap adapter (0x00000006)Please note this error and contact your display adapter manufacturer'stechnical support line. It is important that you leave your system ON and NOTreboot until instructed by your manufacturer on how to proceed.C:\Users\sblantipodi\Desktop\7ad8fc24-d3e8-41ed-ae87-21c681ea55bb\2982 DP>

Congratulations to EVGA

 

GoldenShadow

matthewdg1973
I have the problem with DP when I need to turn off the monitor while the computer is on and when I turn it back on it says no signal and I have to reboot the computer to get the monitor show the desktop again.  I made sure to purchase the cables that were on the VESA  approved site and still having issues. This is ridiculous.

This is a Windows 7 issue. I have the same thing happening. All you can do is not turn off the monitor while Windows is running. I've read this is fixed in Windows 8.

Well that just sucks. Wish MS would fix this issue.

Where can I find this workaround bios because Nvidia hasn't fixed it in the drivers to date.
 

This issue just started happening with latest nvidia drivers and an Asus VG248QE on a 970FTW.
 
Nvidia never does let off, do they.

Well, if there's a BIOS fix, it'd be nice if someone can link me the one for 970FTW.

I wrote to EVGA, they sent me a new BIOS to fix the problem. I have done the simple instructions, the update.exe gived me this error:  

update.exeNVIDIA Firmware Update UtilityVersion 5.196 *** IMPORTANT ***Do not turn off the computer or attempt to reboot your computer while theNVIDIA firmware is being updated. If the computer is turned off, orpower is lost, you may be unable to restart your computer.Searching for display adapters to update...ERROR: Error attempting to unmap adapter (0x00000006)Please note this error and contact your display adapter manufacturer'stechnical support line. It is important that you leave your system ON and NOTreboot until instructed by your manufacturer on how to proceed.C:\Users\sblantipodi\Desktop\7ad8fc24-d3e8-41ed-ae87-21c681ea55bb\2982 DP>

Congratulations to EVGA
 
*******************************************************************************************************************************************
 
EVGA is the only brand who released a firmare fix for this problem that solves the problem on all the operating systems.
So, no need to complain over EVGA
 
*******************************************************************************************************************************************

Who is complaining about EVGA? Everything I've read points towards Nvidia.

What variation of the 970 do you have.

Oh, and I'm having issues with the GTX 970. So its not just a 980 issue then.

Thanks for the link, but will that bios work for my SSC+? Also curious as to why they would tell me something different yet give out a bios later. Maybe I just had a lazy tech answering my ticket.

I was just informed that it could possibly be that my monitor needs a Bios update due to a EDID handshake error. I am going to try and see if BenQ has one for the XL2420Z monitors. If they don't I guess I will have to switch out cables if I need to get into the service menu of the monitor. More of a inconvenience than anything else.

Just a follow-up on my last post. I got ahold of BenQ and they in fact informed me that there was a new firmware available for my XL2420Z monitors and to send them in for the update. Now I am just waiting for the monitors to get there and get back and hopefully the "no signal" issue will be resolved.

matthewdg1973

dellguyz
Hey everyone, my rig is running with two GTX970 FTW in SLI mode. I suffer with the "displayport no signal" issue once I got the cards. After search through the web many people suggest updating the vBIOS to latest will help, so I called the EVGA support and they provide me a latest vBIOS. Flashing it, smooth, however, the "no signal" issue still not fully solved. I could say, the system now less likely "no signal" during cold boot or warm boot, but still occasionally suffer "no signal". 
 
Do anyone updated the latest vBIOS and still have occasional "no signal" issue like me?

I'm not sure what monitor you have but maybe contact the manufacturer and see if there are any firmware updates for it. It might help.

My monitor is BenQ BL3201PT (US model BL3201PH) 4k 32inch IPS monitor

I suggest getting in contact with BenQ support and seeing if there is a firmware update for your monitors. Their RMA process is not the best (had to ship the monitors off myself @ $45 each) but they do cover the return shipping.

matthewdg1973
Here is the link to the BenQ US support site: 

I has just drop them an email, thanks for your link! :)

This seems to be an old ongoing problem?
 
first noticed this displayport bug after switching from a AMD card to a asus 670 GTX, using a Samsung 27" S27A950D... anything from a coldboot, hibernation or just the powersave(turn screen off after 5mins) could trigger it, monitor re-fuses to leave standbymode, and the problem still persist when connecting it to my newer EVGA 980 SC.
 
Also just purchased the new Samsung 34" LED Curved S34E790C THIS is behaving the same way + when it happens, the built in USBhub turns on and off until i disconnect power from monitor and reconnects, wich also brings back the picture. this is where i decided to send it in for RMA.
 
ill try EVGA to se if they still have that Vbios laying around?, dont have much confidence in samsungs repair partner in my country :(