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Can't Get HTPC To NATIVE 1366x768 On Samsung HDTV w/Windows 10 - (Win7 no problem)

Question asked by rcxtra on Jan 3, 2016
Latest reply on Jan 6, 2016 by amdmatt

I can't get Win10 to use my Samsung HDTV native 1366x768 resolution, it's using 1080p and scaling the lower resolution, which looks like crap. Works fine with Win7 - TV switches it's native mode when switching between 1920x1080 and 1366x768, but not with Win10.


Regardless of desktop resolution, TV stays in its native 1080p mode instead of switching to its native 1366x768 @60Hz which it does with Windows 7.


Using AMD CCC 15.7.1 drivers on both Win7 & Win10.



      - Verified all Desktop Settings in CCC are identical for Win7 & Win10


      - Tried changing resolution in Win10 'Metro Settings', conventional 'Screen Resolution' in control panel and through AMD CCC 'Desktop Management'.


    • - Tried new AMD Crimson drivers on Win 10, no joy.



I know this has to be a driver issue because after the initial Windows 10 upgrade, before upgrading the drivers, the R9 270x was still switching the HDTV to it's native 1366x768 input mode. But as soon as I upgraded the GPU with AMD's Windows 10 drivers the HDTV will no longer switch input modes when running the lower 1366x768 resolution.


Appreciate any help in resolving this issue... Thanks. 



System Specs

Asus P8B75M MB


8GB GSKill

Sapphire R9 270x 2GB

Samsung HDTV UN40EH5300 (only display connected via HDMI)