2 Replies Latest reply on Oct 14, 2017 9:44 AM by kost9lbrik

    R9 290 doesnt give 60Hz in 4k (2160p)

    kost9lbrik

      Hello everyone.

      I've met a problem with getting 2160p@60Hz with my R9 290 over DP1.2 to HDMI 2.0 adapter with LG 43UH6100 TV.

      In every setup I tried to do both UHD deep color enabled/disabled on TV.

      At first I couldnt get 4k resolution at all, but after lots of manipulations and search over the net, I finally could manage to get 2160p@30Hz. To get this I installed latest drivers 17.10.1.

      After reading this thread https://community.amd.com/thread/206037 - I  tried to use CRU, and follow the manual there. Didnt help.

      Then I decided simply roll back to drivers where people still could get 60Hz with 2160p resolution.

      And what a miracle, simple delete of 17.10.1 and install of 16.8.3 drivers solved the problem, TV turned on already with 2160p@60Hz. So I finished my work and turned off PC.

      Next morning I am starting PC, expecting to get all working fine, but Ive got 2160p@30Hz. In settings 60Hz was not available again(((...

      I tried to reinstall drivers - didnt help. Tried to install 17.10.1 and roll back to 16.8.3 - didnt help.  Tried to install 16.7.3 - didnt help as well. Tried again to use CRU with the procedure described in thread above (in every 17.10.1/16.8.3/16.7.3) - didnt help.

      Something tells me that this problem can be solved just with going to Registry or something like as 60Hz just doesnt appear in settings menu, but I am not that good with this problem.

       

      ONCE again. I did manage to get 2160p@60Hz, and all worked fine until I reboot PC.

      Would appreciate any help.

        • Re: R9 290 doesnt give 60Hz in 4k (2160p)
          daimondbackscout

          I had a similar problem with my r9 280 and a Panasonic TV a while back.  IIRC it was eventually solved by tweaking TV settings and wasn't gpu driver related.

           

          As unlikely as this sounds I'm fairly certain it was the "16:9 overscan" option. The TV wouldn't "hold" certain resolution/refresh rate combinations with this enabled and I had to turn it off (or vice versa)