Question 1440p Monitor Refresh Rate Problems

yassir560

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Jul 1, 2016
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some relevant info:
my gpu's a GTX 1080ti
monitor's a VA2715-2K-MHD
it was manufactured in 2023-07-07


Hello to all of you, I've been having a peculiar problem with my new monitor.


The Problem
It's a Viewsonic VA2715-2K-mhd. I got it aftermarket for an incredibly good price. I am sure it's that monitor as it still has it's stickers in the back for it.

I've been having a few issues with it, mainly it seems that the monitor just can't handle being put at full brightness without turning off - but, besides that, and since I never will use it at full birghtness anyways, it's all fine.

my real problem here is with the refresh rate. it's advertised to be a 100hz 1440p monitor. the 1440p part checks out, but I can't seem to get it to display at 100hz.


Cables
I have tried various HDMI cables, but only one of them I actually somewhat believe the quality of - it's supposed to be a "high speed with ethernet" cable, and from reading into it a bit, seems those cables can't handle 100hz at 1440p.


Different Resolutions

So i thought that perhaps I could try lowering the resolution and trying different refresh rates, like 1080p at 100hz, but that doesn't seem to be an option at all. Infact, right now I can pull 75hz at 1440p, but not 75hz at 1080p.

I really want to figure out if the problem's actually with my monitor or my cables. I bought a display port cable this morning but it was flickering and doesn't work very well even on another monitor. I don't trust the brand, and it was also still stuck at 75hz, tried two different ports on my gpu but, no option for something higher than 75hz even at 1080p.

I know I can possibly fix the issue with a new display port cable that's trustworthy and at the very least 1.3, but I can't get that right now and I just want to know the monitor's not the fault here.

Questions + Other things I've tried
Is there any way for me to reach 100hz at 1080p with the hdmi cables I have right now?

could the fault be the monitor's drivers? I downloaded them directly from viewsonic's website page for the monitor

I also tried to check the user manual/qucikstart guide but nothing at all pops up for the refresh rate.

I don't know if I need to enable something like gsync or a refresh rate setting in the OSD, perhaps freesync? there is a setting for that on the monitor's OSD, but since I'm using an nvidia card I can't imagine it is necessary. None of this is mentioned at all on the monitor's guide.

using a custom resolution with the control panel (even something like 800x600 at 90hz) keeps giving me a black screen with an "out of range" dialog box. so I'm left perplexed if this monitor can actually display 100hz or not?
 
Thanks for the support guide page, but I'm left incredibly perplexed as;

https://www.viewsonic.com/global/products/lcd/VA2715-2K-MHD

according to this page, it does go up to 100hz. the person I bought it from (however trustworthy that may be) also affirms using it at 100hz, and that product page's manual and guide doesn't provide anything about the refreshrate. it's the first result when searching up the monitor