Windows 10 - R9 390 - Ran 60hz @ 4k with displayport (generic pnp w/ TV) fine until....? PLEASE HELP!

N

ninjaklay

Hello all,I've been using my Samsung TV as a monitor for quite some time. My gfx card is an R9 390 which can output 4k@60hz using the displayport. Recently I restarted my computer (there may have been an update) and upon reboot I noticed the framerate looked choppy and felt laggy. Back to 30hz. There's no longer an option to select 60hz from my card. It's completely gone. I've tried removing the generic pnp driver and reinstalling, I've tried using different resolutions and "tricking" the PC into remembering, I've uninstalled/reinstalled the driver

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