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Odd multi-monitor issue...

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User Info: __HM3__

__HM3__
4 months ago#1
Hey guys. Havent posted in years, but I'm glad to see this place is still poppin'.

I need some help with a very odd monitor issue. when attempting to use 2 monitors on DVI (both plugged into my GTX980) only one will work... sort of.

If I start up the computer with 2 monitors attached, from being turned off, only monitor 1 is recognized. Also Windows boots in low-graphics mode (no Aero.)

Where-as, if I start the computer up with one monitor plugged in, boot windows, and theeeen attach my other monitor, everything is smooth sailing. Extends perfectly.

If I do 1x DVI and 1x HDMI, 2 monitors work perfectly. Its just that second DVI port that from start up isnt recognized.

My BIOS doesnt display on monitor 2 on startup, either. Which IMO means its not a Windows problem.

Tried re-flashing mobo BIOs, and multiple windows installs. Nothing.

Specs: GTX980, AMD FX 8350, 8GB RAM

Help? Thanks guys
E2160 3.2GHz | 2GBs DDR2-800 | 8800GT 256MB | DS3L | Earthwatts 500w
"THAT'S MR. KANEDA TO YOU, PUNK!"

User Info: mucloud

mucloud
4 months ago#2
__HM3__ posted...
Hey guys. Havent posted in years, but I'm glad to see this place is still poppin'.

I need some help with a very odd monitor issue. when attempting to use 2 monitors on DVI (both plugged into my GTX980) only one will work... sort of.

If I start up the computer with 2 monitors attached, from being turned off, only monitor 1 is recognized. Also Windows boots in low-graphics mode (no Aero.)

Where-as, if I start the computer up with one monitor plugged in, boot windows, and theeeen attach my other monitor, everything is smooth sailing. Extends perfectly.

If I do 1x DVI and 1x HDMI, 2 monitors work perfectly. Its just that second DVI port that from start up isnt recognized.

My BIOS doesnt display on monitor 2 on startup, either. Which IMO means its not a Windows problem.

Tried re-flashing mobo BIOs, and multiple windows installs. Nothing.

Specs: GTX980, AMD FX 8350, 8GB RAM

Help? Thanks guys

Never flash your Mobo if you dont need to it could brick it.

If your second one does not work get a known good cable and test that and make sure you install the drivers for your old monitor from the site not the cd.

If that does not work try a active display adapter they run $20-45. If that does not work your gpus port on that cable is going out. You can get a hdmi splitter amd try that also.
Cooler Master CM Storm Trooper White W10 64bit GA990FXAUD3 FX 8320 Vishera 8-Core Core 4.0 GHz 1000watt Rosewell PSU 32GB RAM XFX Radeon R9 390 8GB

User Info: __HM3__

__HM3__
4 months ago#3
Thanks for the advice. I doubt monitor drivers are the issue, as it has the problem with any monitor I hook to it via DVI. Tried multiple cables that are all fine.

Display adapter/splitter is a last resort because I shouldnt need it. But I will keep them in mind.

My port "going out" doesnt make sense to me. The port itself works perfectly, just situationally.

What about re-flashing Nvidia BIOS? Ive been attempting to do this for a few days now actually and havent been able to complete what is supposed to be a very simple process... NVflash doesnt seem to work properly and all these "Boot into DOS and do this and that" guides seem... overly complicated? For a BIOS flash? I dont know.
FX 8350 4.7GHz | 8GBs DDR3 | GTX 980 4GB
"THAT'S MR. KANEDA TO YOU, PUNK!"

User Info: KillerTruffle

KillerTruffle
4 months ago#4
A quick scan online looks like this is actually a relatively common problem with the 980 series - lots of people have had issues with dual monitors on DisplayPort or DVI. I haven't found a consistent fix yet either.

In one case, the person couldn't get both monitors working properly together until they enabled their webcam for a Skype video call, and they worked ever since. In another case, it was simply a matter of nVidia control panel not having one of the monitors checked; however, that's not likely your problem if Windows loads into low graphics mode.

Stupid question, but you *are* plugging both monitors into GPU ports, right, and not one into the GPU and one into your motherboard DVI? I only ask, because the majority of GTX 980s only have one DVI port, so to be using two at all, you'd have to have a model with two on the card.

Is there a reason you can't just keep using one DVI and one HDMI if that works?
"How do I get rid of a Trojan Horse?" -Sailor_Kakashi
"Leave it outside the gates of Troy overnight." -Davel23

User Info: __HM3__

__HM3__
4 months ago#5
Guys, thanks for the input. After a bit more investigating (namely under device manager) I realized that I needed to install Microsoft's 980 GTX drivers, along side the nVidia ones. Which seems odd to me, but it is certainly working (3-monitor setup, 2 in DVI one in HDMI.) I've never run 3 monitors before, and games are cooler than ever. Thanks again guys, closing this one.
FX 8350 4.7GHz | 8GBs DDR3 | GTX 980 4GB
"THAT'S MR. KANEDA TO YOU, PUNK!"
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