Having issues creating custom resolutions with Crimson version whatever (I always update to latest version) on an r390 (8gb, liquid cooled, blah blah).
Basically, with GPU scaling and custom super-resolutions turned on, I get only 2 higher resolutions than my default 1080p display, 2560x1440 and something higher. Because I'm gaming stereoscopically via. TriDef (usually) or SuperDepth 3D, I'm running 1/3 my potential FPS in many cases. For this reason, only older games will run at 2560x1440 or higher, newer games (DAI, Witcher 3, FO4, etc.) run fine at 1080p, but NOT if I have to extend all the way to 2560x1440, that's just too much for this card to handle (remember, I'm cutting my frame-rate to 1/3 what it would be without TriDef).
All I wish to be able to do is setup custom super resolutions, so I can tweak my game resolutions to be above 1080p but below 2560x1440, which should be completely doable with super-resolutions. I don't get why I'm getting "display doesn't support resolution" issues when I try to create custom resolutions, because the GPU should be treating anything above 1080p as a super-resolution and using the GPU to downsample to 1080p. Display support shouldn't have anything to do with it (and, in fact, doesn't at the paltry 2 super-resolutions the AMD drivers seem to provide by default.)
What am I doing wrong?
Thanks, your help is appreciated!