Flickering at 100/120hz

DemonMark · July 10, 2016

Helllo, I'm new here, I hope I'm doing this right..
So I recently bought an Acer Xb270hu monitor, for which I am currently using as my primary screen for my alienware m18xr2 laptop (I am working on getting a desktop built in the next couple months). The screen works fine,right up until I switch it over to 100/120hz. What happens is that it starts to flicker, or rather blink, usually about 3 times, then it's fine for about 10-20 second and another 3 blinks and the gap between blinks will get progressively smaller. I haven't tried too much (Not amazingly good with computers, unfortunately), but I have tried upgrading my graphics and bios drivers.
My laptop has 2 amd HD radeon 7970m's in crossfire, and the monitor is hooked up by miniDP to DP.
Any help would be appreciated, and thank you in advance.
(I'm about to go to bed, but I will check back here first thing in the morning)

Altecice · July 10, 2016

Flickering at whats considered "overclocked" refresh rates is down to the panel lottery. I have an Acer x34 that can OC to 100Hz but will flicker like mad if you go above 95Hz. Its not RMA'able unless its explicitly sold as 100/120/144Hz from factory.

DemonMark · July 11, 2016

11 hours ago, Altecice said:

Flickering at whats considered "overclocked" refresh rates is down to the panel lottery. I have an Acer x34 that can OC to 100Hz but will flicker like mad if you go above 95Hz. Its not RMA'able unless its explicitly sold as 100/120/144Hz from factory.

My monitor is sold as 144hz, can be overclocked to 165hz. I do not currently have it overclocked, but I turned the feature on a couple days ago to see if it would continue to flicker, which it did. I don't think it's a monitor issue though. It worked fine on my sister's laptop which has a nvidia geforce 675M in it, the flickering/blinking only occurs on my laptop.