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[Various] ( update )GeForce GTX 1070 and 1080 DVI Pixel clock at 330 MHz Issues - Page 2

post #11 of 56
Quote:
Originally Posted by jmcosta View Post

what resolution are you using?
2560x1440

Quote:
Originally Posted by Eorzean View Post

Have you rebooted your PC yet? Seems that it's only a problem at boot.

Sounds more like a software issue rather than a hardware one. Hopefully they can fix this with a driver update.

Nope, not since I set it to 96hz. Guess I'll just not reboot for a while haha.
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post #12 of 56
Quote:
Originally Posted by IMI4tth3w View Post

just fyi digital cables will either work, or not work. VERY rarely is noise and cable quality an issue unless its a REALLY low quality cable. digital cables only transmit 1's and 0's.

However, i could be corrected in cases such as using overclocked 1440p monitors with dual link dvi cables of poor quality that i suppose could have some internal reflection issues due to higher frequency. but this is all just speculation.

either way, hopefully this issue can be fixed via software but i have a feeling pixel clock is set somewhere via hardware. i'm still just speculating here.

This is mostly true as you either receive a mathematically perfect copy of the data being sent or you do not as you have asserted.

The rub in reality, however, is that poorly designed/manufactured cables and interference can mangle the signal and increase the bit error rate. In protocols with error correction, you are insulated from these bit errors up to the point that the error rate exceeds what error correction is capable of. In protocols with retransmission, you are further insulated from that condition provided there exists enough spare capacity to retransmit bad blocks within the window allowed for a given frame.

The point is that a poor cable can push the BER of the link to the point where it will cause problems. These problems don't always manifest as a completely broken transmission but can instead cause weird transient problems. Perhaps your monitor drops sync periodically for just a moment and you get a flash of black. Perhaps your monitor occasionally goes into a self-diagnostic mode due to the malformed signal. Perhaps your monitor loses frame sync and you see the frame but with noise or shifted vertically from the proper position and wrapped around.

I've seen all of these with DVI monitors on occasion despite it being a digital protocol. DP/HDMI might refuse to show you a frame that it isn't perfect--I don't know. You certainly can get that with DVI, however.
post #13 of 56
I have a Qnix @ 96Hz with an EVGA Superclocked GTX 1080 and this issue is quite annoying. I have to keep it at 60Hz all the time and only switch when I play games. It isn't just when you boot - the same thing happens when coming out of sleep.

Can someone let me know if this can be solved via driver? Or should I look at returning this?

I'm actually glad I found this thread - I was going crazy...
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post #14 of 56
Quote:
Originally Posted by seabiscuit68 View Post

I have a Qnix @ 96Hz with an EVGA Superclocked GTX 1080 and this issue is quite annoying. I have to keep it at 60Hz all the time and only switch when I play games. It isn't just when you boot - the same thing happens when coming out of sleep.

Can someone let me know if this can be solved via driver? Or should I look at returning this?

I'm actually glad I found this thread - I was going crazy...
The problem is you are running the monitor on an out-of-spec connector. DVI is only supported at up to 60hz. Anything above that is OCing the connection.

My suggestion, if you can afford a $700 1080, is to buy a new screen, one with displayport, and stop trying to run a monitor faster then it's connection is built for. Displayport 1440p screens with 144hz refresh rates are $4-500 brand new.
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post #15 of 56
Quote:
Originally Posted by GamerusMaximus View Post

The problem is you are running the monitor on an out-of-spec connector. DVI is only supported at up to 60hz. Anything above that is OCing the connection.

My suggestion, if you can afford a $700 1080, is to buy a new screen, one with displayport, and stop trying to run a monitor faster then it's connection is built for. Displayport 1440p screens with 144hz refresh rates are $4-500 brand new.

That wasn't my question. I came from 2x7970's and had zero problem with running the monitor at 96Hz. In fact, it actually BOOTED and SLEPT correctly......

My question is...can NVIDIA fix this with a driver? Or is it something that cannot be resolved (in which case, I would likely return my 1080).

I purchased a 144Hz monitor and used it for about 2 weeks. There is a difference between 60Hz and 96Hz and 144Hz. But to me, the difference between 96Hz and 144Hz didn't improve my gaming experience, so I don't plan on buying a new monitor for it.
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post #16 of 56
So... running a system out of spec has a small chance of leading to instability? Golly!

For what it's worth the company behind DVI hasn't really existed for the past decade. We desperately need to move on to DisplayPort, and this is yet another reason. It can't handle these high resolutions and/or refresh rates while staying in spec.
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post #17 of 56
Quote:
Originally Posted by CynicalUnicorn View Post

So... running a system out of spec has a small chance of leading to instability? Golly!

For what it's worth the company behind DVI hasn't really existed for the past decade. We desperately need to move on to DisplayPort, and this is yet another reason. It can't handle these high resolutions and/or refresh rates while staying in spec.

It isn't instability. It is a bug with coming from a sleep/restart state and setting appropriate refresh rates. No other cards have this issue.
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post #18 of 56
Quote:
Originally Posted by seabiscuit68 View Post

It isn't instability. It is a bug with coming from a sleep/restart state and setting appropriate refresh rates. No other cards have this issue.
That's the risk you run when you use out-of-spec parts.
Quote:
My question is...can NVIDIA fix this with a driver?
Who knows. Even if it can be fixed, which given the pixel clock is hardware based I doubt, why would nvidia code a fix for running a monitor on an unsupported interface, which is a niche so small it makes 4 way SLI look big by comparison?
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post #19 of 56
Quote:
Originally Posted by GamerusMaximus View Post

That's the risk you run when you use out-of-spec parts.
Who knows. Even if it can be fixed, which given the pixel clock is hardware based I doubt, why would nvidia code a fix for running a monitor on an unsupported interface, which is a niche so small it makes 4 way SLI look big by comparison?

You're right. No one owns overclockable monitors...
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post #20 of 56
Quote:
Originally Posted by seabiscuit68 View Post

You're right. No one owns overclockable monitors...

Clearly, people do. But it is a tiny portion of the market, running out of spec. Similarly to how nvidia never actually supported 4 way SLI, I doubt this will get support either.

I could be wrong, but only nvidia knows how hard this issue is to fix.
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