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Having a nightmare time with monitors + 780, Driver problem or card problem? Monitors refuse to work

chickadee

chickadee

chickadee

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So I woke up to a completely lifeless pc, no monitors seemed to turn on with my pc.

I have 2 monitors, both of which are 22" 1680x1050 and one is plugged in via HDMI (HDMI on the card end and DVI-D on the monitor end) and another DVI-D. The only way I was able to get into the system was connecting an older monitor into the DVI-I port on the 780 which seemed to work and allowed me to enter safe mode so I could run DDU and reinstall the nvidia drivers.

Once done nothing happened......the same, monitors just wont wake up from sleep, I have tried the monitors on another PC and they all work perfectly.

I have had a lot of problems with the HDMI port in the past few months and just trying to get any monitor identified but it was working perfectly for a good 3 months and now this.

I don't know if its software or the card itself. Does anyone have any ideas on what I could do next as im sort of lost as the monitors just wont work, i have tried DVI on its own and even using an hdmi cable with an DVI adaptor and the same thing happens.

Oh and I didn't upgrade drivers or anything recently so it shouldn't be anything like that. Currently the older 1600x1200 monitor is working using a DVI-I cable but its sending a digital signal (not analogue).

Lot of text but I hope someone could help.
 
Are you able to get into the BIOS, or boot from a Windows Installer USB/CD? Neither of these will rely on the drivers on your current build, so if you don't get an output under either of these situations, then I'd say hardware fault sadly.
 
Confused Stu said:
Are you able to get into the BIOS, or boot from a Windows Installer USB/CD? Neither of these will rely on the drivers on your current build, so if you don't get an output under either of these situations, then I'd say hardware fault sadly.
Click to expand...

On the 2 1680x1050 (lets call them A and B) monitors using DVI-D cables I get nothing, the monitors refuse to wake from sleep. The older DVI-I cable monitor (monitor C) works perfectly it seems now.

Sometimes I can get to see the boot on my monitor A but when it hits windows it disappears and goes back into sleep mode, i even managed once to get into safe mode.

One monitor refuses to work at all (B) though......its so inconsistent. I have tested all the monitors and they work fine on my second pc.

Right now monitor C is working perfectly by being plugged into the DVI-I port on my 780 but no other monitor will work in that port, the other 2 ports dont seem to allow any monitor to work including monitor C that is working now.

I really dont get it and is getting really confusing.

I guess I will try another driver uninstall and maybe a bios reset just in case (cant make things worse).
 
ubersonic said:
That's a good thing, would be worried if the opposite was true as it could indicate a fault.
Click to expand...

Well that could be becuase I pulled the analogue pins out of the DVI-I cable because I was getting sick of windows preferring an analogue signal over digital a long time ago.....its impossible for it to send an analogue signal now. It is weird though that a DVI-D cable seems to not work.
 
chickadee said:
Well that could be becuase I pulled the analogue pins out of the DVI-I cable because I was getting sick of windows preferring an analogue signal over digital a long time ago.....its impossible for it to send an analogue signal now.
Click to expand...
Well if you converted it into a DVI-D cable have you tried that connecting one of the 22" 1680x1050 screens?
 
ubersonic said:
Well if you converted it into a DVI-D cable have you tried that connecting one of the 22" 1680x1050 screens?
Click to expand...

Cant due to a DVI-I cable having a larger flat pin, they only fit in DVI-I sockets.

I did get somewhere, it seems I can get the monitors to work using the DVI sockets on my graphics card now but the HDMI refuses to work at all, even plugging an HDMI cable into it when connected to any monitor/tv wont recognise it.

The whole thing seems to sporadic and every reboot something changes, will have to continue to test things but its really frustrating.

I am going to install an older graphics driver to rule out any new driver problems.
 
ubersonic said:
Ahh I forgot about that.



Could try using your HDMI/DVI-D cable to connect the TV, see if it works off the DVI-D port?
Click to expand...


Well its getting more and more bizarre, i just swaped the cables from the 2 monitors and boom working, the HDMI refuses to work going to my Dell (worked for months up till now) but works to my Acer.........

I dont get it
 
So Since my last reply everythign has been working fine until i boot my pc up this morning and the HDMI isnt working again......

I am getting really sick of this and have no idea what to do now. From what i can see its the HDMI thats the problem but it might be somthing driver related, im not sure.

EDIT: Ok after trimming down my DVI-I cable even more I got it to work in my DVI-D monitor and it works.

So it seems the problem is 100% the HDMI connection, Does anyone know if that can be anything other than a hardware fault? I have tried a TV and 2 monitors in the socket and nothing is detected within windows, the only sockets that work are the DVI-D and DVI-I, I dont have the cable to try the display port.
 
Last edited:
So I tried re-seating again and the HDMI seemed to work but promptly died again, I tried it also in my second pc where the HDMI worked for about 30minutes and then just lost signal.

Anyone have any ideas? It seems very inconsistent and hard to replicate, it seems to either work or doesnt.
 
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