3 Replies Latest reply on Mar 7, 2018 6:02 PM by acr2018

    Ryzen 5 2400g - 17.7 Driver causing pixels to flicker - should I return monitor??????


      I'm getting random blinking pixels, all over the screen. They are not predictable, but they do usually do the same pixels 2-3 blinks, then some other pixels somewhere else. Very weird! This is a very short youtube video of what I am seeing, this goes everywhere on the screen:


      My new monitor flickering pixels? - YouTube


      Built this system with latest drivers as of 2/21/18:

      -Ryzen R5 2400g - stock cooler and settings.

      -ASUS strix ROG b350-F gaming ATX, flashed w/latest BIOS

      -Samsung 960 NVME m.2 250gb HD

      -2x4gb DDR4 3400 patriot

      -Samsung 4k monitor ue510


      Its a Samsung monitor from Costco, UE510 which is 4k60 w/freesync. With generic driver (windows / samsung?) the monitor seemed fine while updating drivers. I then downloaded and installed the radeon software 17.7 after AMD chipset drivers were installed. Not long after that I noticed those blinking pixels. My new monitor flickering pixels? - YouTube .


      I tried to troubleshoot for about 4 hours, reinstall drivers from Samsung and Radeon. After this I enabled freesync on the monitor and in Radeon software. Freesync didn't fix the problem, its the exact same. I spent a few days wondering if it was a bad cable. So I tried HDMI cable instead of DP and same problem.


      I then thought maybe its the monitor: I hooked it to my macbookpro with HDMI and it works perfectly.


      conclusion 1: HDMI cable and monitor are fine.


      So after this I figured its either drivers or ASUS motherboard issues. I again tested HDMI on the ASUS, problem re-appeared.


      After this I rolled back display driver to generic windows driver, problem is gone.


      conclusion 2: ASUS motherboard port is ok


      Final Conclusion: Something is wrong with the Radeon Display drivers. OR its my install of them, or maybe I need to tweak something?


      Please help!

      I need to be able to fix this while I still have return as an option.


      If I can't fix this, I will just have to return everything I bought



        • Re: Ryzen 5 2400g - 17.7 Driver causing pixels to flicker - should I return monitor??????

          Driver should be fine, although it's not up to date as Adrenalin driver for other AMD cards.

          If problem gone with generic windows driver then there is issue with gfx chip inside AMD processor.

          What you can try is to take off one DIMM and try it with just 4 GB RAM, if nothing changes, try the other stick.

          You can also try to set in BIOS DIMM sticks to be running lower then 3400Mhz, for example 2133 - 2400 Mhz for a start, if anything changes.

          Make sure your CPU is not overheating, CPU voltage should not be over 1.3 - 1.35V for a start. (if you keep all Voltages on Auto, sometimes it set voltage too high, depends on mobo bios)

            • Re: Ryzen 5 2400g - 17.7 Driver causing pixels to flicker - should I return monitor??????

              might be ram frequency, drop it back to frequencys AMD recommends first then bump it in small increasements. To me its something or setting on your motherboard, its not your monitor if its working fine. Another idea is done run Your monitor drivers Disable you monitor drivers load up your Graphics drivers to suit your CPU & see if the issue goes away. Might be a conflict between your monitor drivers & Radeon drivers can happen. I dont & never do monitor driver updates as i see no point & your graphics chip should control all of that.

            • Re: Ryzen 5 2400g - 17.7 Driver causing pixels to flicker - should I return monitor??????

              Thanks everyone! it appears to be Ram speed issue. (Patriot Viper DDR4 3400). The motherboard says it only supports up to DDR4 3200, but ASUS drivers are ready for Ryzen refresh and detected and ran the 3400 ram automatically. So first I backed the ram speed to 2133 and it was fixed. Then 3200 and the flickering was still fixed and seemed fine, but i got BSOD. So settled for 2800, and that was working fine all day, played some Steam games (Gravel/DOTA). Gravel looked great defaulted to ultra 4k but it was unplayable, about 1fps. Then I put the settings @ lowest and it still looked like arcade quality and its a lot of fun to play, with only occasional slowdown here and there. I'm not a gamer but this was a lot of fun, like getting a free xbox with my workstation.   



              After this I bumped up the ram to 3000 but it didn't change the occasional slowdown in gravel. Been running good so far.