Freesync Fullscreen causes periodic monitor flickering

Discussion created by mb488 on Apr 17, 2017

I experience the following bug:


The screen starts flickering when I use freesync in a fullscreen application on my Samsung CFG70 screen.

How it looks like:

About every 1 second, the screen becomes a little brighter for a short moment, then goes back to normal.

It is very annoying and gives me a headache. It makes me think something is wrong with my eyes.

You might not see it instantly, but as soon as you know it's there, it's impossible to ignore.

I have to switch to borderless fullscreen because the flickering is so bad.



Monitor set on "Ultimate Freesync": Bright flicker every 1 second

Monitor set on "Standard Freesync" Less bright flicker every 1 second

Monitor set on "Freesync: Off" No flicker, but no freesync.


Game set to fullscreen: Flickers

Game set to borderless or window: No flicker

Desktop and programs: No flicker


Game: It happens in all fullscreen games I have tried. For example League of Legends (very noticable), Rocket League (hard to notice), Stellaris.


Happens equally on driver 17.4.2, 17.4.1, 17.3.1 (probably all others too, I only tried these)


RX 480 stock version

Samsung 24" CFG70 connected via DisplayPort

Dual monitor setup

Windows 7 SP1