Display Port on GTX 1080 and LG monitor is currently not working!

[iAcai]

I just bought a display port cable for my GTX 1080 and LG 24GM77-B gaming monitor and it seems that the monitor isnt even getting signal and the card doesnt recognize that theres a display to be recognized.

 

[Hellfire13]

is this a new card/monitor, or were they working before???
also the new cable cud be faulty...try to eliminate that possibility as well...

 

[RedInsanity]

I have the exact same problem - I recently bought a GTX 1080 EVGA FTW. I have two monitors, the gtx 1080 has 5 ports - DVI-D, 3xDisplayport, 1xHDMI.

My main monitor VG248QE works perfectly fine on the DVI-D connection, however, my second monitor an old LG monitor is using a VGA-> displayport adapter and then into the graphics card. This solution worked perfectly fine for me before with my GTX 760. Using completely the same setup.
Now when I plugged in my LG monitor it worked for 2-3 days, completely fine, plug n play - it was perfect... But then suddenly it goes black and starts displaying "Check signal cable." It has been doing thin continuesly over a week now - I have nearly tried everything in my power to correct and fix this issue - Things I've tried are:

1. Power PC down, unplug monitor wait few minutes, press the power button of monitor to discharge the caps, then replug and try it again - didnt work.
2. Completely erasing NVIDIA drivers and reinstalling them from fresh.
3. Resetting bios by removing the motherboard battery.
4. Unplugging the PC and trying to discharge its caps then replug again.
5. Various driver installments and tests
6. Testing the monitor cable - it works perfectly fine on my other PC with my old GTX 760 in.
7. Testing the displayport adapter, same as above.
8. Trying different displayports on the GTX 1080.. same result..

I read somewhere that the gtx 1080s only support digital signals, and I know that VGA is analogue (and since I am using a passive adapter) - however, since my given solution worked for a few days without a flaw then I don't understand why it suddenly would stop to work.

I am using the newest NVIIDIA driver 372.70, and have also tried older ones...

Anyone have any ideas as to what has cause this problem? I mean I don't understand why the monitor would work for a few days and then suddenly seize to function?

Any inputs are very much appreciated!

 

[Hellfire13]

ReadInsanity, please start a new thread for better response...

 

[RedInsanity]

Have made a new thread - thanks for the suggestion - http://www.tomshardware.co.uk/forum/id-3182881/monitor-longer-detected-gpu-installed.html