I just installed a Radeon R9 270 in my computer.
I got it new on sale w / rebate for $129.00.
The previous card was a Nvidia 750ti.
The Nvidia has no problem going to 1600 x 900. And just about every resolution in between.
The Radeon just flashes back and forth and finally reverts back to what I had it originally set at.
This is a i7 system with Win 7 64 bit.
I am running this to a 40" TCL TV / Monitor.
Like I said, the Nvidia had NO problems with that resolution.
Further, in some modes, the card has the "Scaling" greyed out, even though it seems I should be able to use it.
Additionally, the 1366 x 768 looks bad. Real bad in comparison to the Nvidia.
Anyone have any ideas about this?