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NVIDIA Pascal Issues Thread

post #1 of 19
Thread Starter 
I thought it would be useful to create a thread to track/follow up on the couple of issues that are currently affecting Pascal GPUs..

The main ones being:

1.- Black screen, artifacts, etc on boot when the Pixel Clock goes above ~330MHz when the card is connected via DL-DVI.

Official response from NVIDIA:
Quote:
Some gamers using our latest Pascal based GPUs connected to high refresh rate monitor have reported that the highest refresh rates or resolutions are not available when connected using DVI. This behavior is due to limited bandwidth available on the DVI cables. NVIDIA recommends that these high performance monitors be connected using DP instead of DVI. DP natively has much higher performance and will support the full capabilities of modern monitors.

In addition, NVIDIA is updating our driver to attempt to run at higher clocks on older DVI cables and enable all monitor modes. However, this high clock behavior is beyond the cable specification and depending on cable and monitor quality, may be unstable or non-functional.

Source.

Update #2 on this issue:
Quote:
Too late to make it in time for the next driver but we will try to include it in the following driver.

Source.

2.- High DPC latency and micro-stuttering.

Official response from NVIDIA: still nothing.

The issue appears to affect both GTX 1070 and GTX 1080 owners. There's a 5 page thread already on GeForce.com forums with users reporting this issue.

Main thread over at GeForce.com forums.

Update:
Quote:
OK we found a system we were able to reproduce this on. Thank you all for your assistance. Once I have further information I will update everyone.

Source.

3.- Screen flickering above 120Hz.

Affects both Pascal GPUs.

Most users reporting this issue have G-Sync monitors, but I've seen a couple with non G-Sync panels as well and 1 with a 60Hz Ultra wide resolution panel.

NVIDIA released a hotfix driver for this issue back in mid June: Here.

It did fix the flickering for some users, but not all, people are still reporting this issue to this day.

Driver released today (July 7th) did not resolve the issue.

Main thread over at GeForce.com forums.
Edited by SlackerITGuy - 7/7/16 at 11:38am
post #2 of 19
Dual monitor and monitors running above 120hz have issues with not dropping to proper idle states; been over a year since this issue popped up with maxwell.
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post #3 of 19
the dpc latency is kind of resolved raising power limits to 120% at STOCK no overclocks. Once you overclock it goes to hell XD
post #4 of 19
Thread Starter 
It shouldn't be happening though. Just look at this:

https://gyazo.com/6ae9fba8379bdc1f2a9de1cf7fb55395

Just awful.
post #5 of 19
They said they'll be including a fix for DVI soon. Not the next update but the one following that.
Quote:
Too late to make it in time for the next driver but we will try to include it in the following driver.

Hopefully it's not too long of a wait. And hopefully they're investigating the latency issue. I haven't noticed it yet, but I've only played 20 minutes of F4.

Edit: yup, after testing with LatencyMon, I have high latency as well. So this leads to audio pops and stuttering in-game and in videos? Was planning on doubling my PC as an HTPC...
Edited by Eorzean - 6/30/16 at 8:43pm
post #6 of 19
Thread Starter 
Thanks for the update mate.

It's worrisome that NVIDIA has yet to officially comment on this issue, it's affecting A LOT of Pascal users, the entire front page of the GeForce.com forums is filled with Low performance, high DPC latency threads.
Edited by SlackerITGuy - 7/1/16 at 7:53am
post #7 of 19
Quote:
Originally Posted by SlackerITGuy View Post

Thanks for the update mate.

It's worrisome that NVIDIA has yet to officially comment on this issue, it's affecting A LOT of Pascal users, the entire front page of the GeForce.com forums is filled with Low performance, high DPC latency threads.
Another update, I went and posted my results in the main thread over at Nvidia.

Comparison with my GTX 960 -> GTX 1070, all the same hardware and settings, I only swapped the card out:

960: http://i.imgur.com/nHNCnXH.jpg

1070: http://i.imgur.com/eLGnbm5.jpg

There's definitely an issue here; it's either extremely isolated or people don't even notice / care. What really irks me about all of this is the lack of a response from any Nvidia rep yet... especially with over 5,000 thread views already... You'd think they'd at least acknowledge there being a problem or assure people they're looking into it by now.
post #8 of 19
Quote:
Originally Posted by Eorzean View Post

Another update, I went and posted my results in the main thread over at Nvidia.

Comparison with my GTX 960 -> GTX 1070, all the same hardware and settings, I only swapped the card out:

960: http://i.imgur.com/nHNCnXH.jpg

1070: http://i.imgur.com/eLGnbm5.jpg

There's definitely an issue here; it's either extremely isolated or people don't even notice / care. What really irks me about all of this is the lack of a response from any Nvidia rep yet... especially with over 5,000 thread views already... You'd think they'd at least acknowledge there being a problem or assure people they're looking into it by now.

Try again under load (with heaven or firestrike) and see the difference in latency.
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post #9 of 19
Quote:
Originally Posted by Blackcurrent View Post

Try again under load (with heaven or firestrike) and see the difference in latency.
It's even worse.
post #10 of 19
Quote:
Originally Posted by Eorzean View Post

It's even worse.

Really, for me it was completely gone under load.
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