Occasional graphic glitches on gtx 960 in 4k

tigersoul

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Aug 30, 2015
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4,510
Hi people!

This is happening on a hackintosh, but as I'm not getting much responses from those forums I figured I'm trying here to see what the PC world (windows) are experiencing.

I've got a Asus Strix GT 960 connected by DP to an Benq bl3201pt running 3840x2160 @ 60 hz. It looks great and I'm not planning on doing any real gaming so the 960 is an economical choice.

Here comes the issue: every now and then I get a quick glitch in the graphics on the screen. It's very brief when it happens, just for a split second. It's so fast that it's hard to even have time to take note of what it looks like. But it looks a bit like some part, a little stripe or whatever of the screen content just flashes by at the wrong place for a nanosecond. It could very well be one single frame, it's that brief. This doesn't happen very often either. Working with the computer for several hours, I might see it once, maybe twice at most, so it's not a thing that is easily diagnosed and tested.

It isn't linked to anything particular going on, the computer might be idle, I might be browsing.

What I've tried so far is exchanging the cable as I've heard DP cables are often crappy at 4K. That hasn't worked so far, but I haven't yet tried a CERTIFIED cable, only 2 no name ones.

Do you have any ideas why this could be? I'm also experiencing an issue with a long post (the time passing before the bios screen shows after powering on). It's well over 20 seconds. It might not be related to this, I'm just mentioning it if it is. Like I said all this is on a hackintosh meaning I'm using OSX and the web driver for OSX from Nvidia. This does of course mean that there is a multitude of reasons this might be happening but I do not have ANY other issues at all so I'm suspecting this would still happen if I switched to Windows. Like I said, the driver I'm using is still official from Nvidia.

Also before putting in the GTX 960, I had a GTX 750 in the computer running a 2560x1600 display via VDI-D using the SAME driver. This never produced any issues so it's not a general hackintosh thing.

Any ideas?


 
Solution
I do not know if this will fix things but I found with my new benq monitor XL2720Z that display port cable from maplin solved a few of the issues I was having

tigersoul

Reputable
Aug 30, 2015
2
0
4,510


That's what I'm thinking too that it might very well be the cable. Guess I'll have to start out by getting a quality cable first.

Accidently selected best answer in the email notification and now I cannot undo it. Darn phone lagged and wouldn't let me abort in time Grrr.