New 4k AOC U2879vf flickering image

[Marty34_96]

Hello,
i have 3 weeks old AOC U2879vf 4k monitor. I have Win10 64x, Sapphire R9 280x toxic. Everything up to date. Now in Chrome and Opera there is really weird issue, when I play some video (YT, vimeo etc), after few seconds, or when I maximalize and minimalize image, flickering image appears.
See the video here: https://www.youtube.com/watch?v=EgNsuM1_Tic

I tried also old monitor and duplicate image. I tried hdmi and displayport also, same.
This problem is not appearing in Firefox or in Edge. Really weard. Its possible that this is software issue, display or monitor vs graphic card issue? I tried it on another Win10 machine with Chrome and it was OK.

 

[Starcruiser]

That's a known issue with those browsers. You have to set them to software rendering, they don't like AMD.
For chrome, check this page out under "experiment at your own risk" and "flipping switches": http://www.pcworld.com/article/2027955/google-chrome-how-to-make-it-faster-smarter-and-better-than-before.html
For Opera, it should be mostly the same since Opera is based on Chromium.

 

[Marty34_96]

Thanks, i will try this, let u know.

 

[Marty34_96]

no help, still same, i tried thi smonitor at my brother (same graphic card, drivers, win10), he dont have problems in chrome, it must be some sw issue

EDIT: Only 4K resolution doing this, 1080p is ok.

 

[Starcruiser]

Ok, other suggestions I've seen:
Clear the contents of C:\Windows\SysWOW64\Macromed\Flash. It will prompt for admin rights, and some files may not delete. This is fine. Reboot and try another video.
From Chrome settings, hit show advanced settings. Uncheck the box for hardware acceleration. Restart Chrome and try a video.

EDIT: More suggestions... Try this plugin. https://chrome.google.com/webstore/detail/h264ify/aleakchihdccplidncghkekgioiakgal
The problem seems to be caused by a poorly optimized plugin that Chrome forces Youtube and others to use, which forces all the rendering to be done on the CPU instead of the GPU.

 

[Marty34_96]

ok "hardware acceleration" did work!!! thanks! I tried also plugin, but didnt help

EDIT: CPU is i7 3770k