I recently purchased an Asus PB287 4K monitor, and encountered some problems. I firstly tried it on a PC running OpenSuse 12.1 with an i5-3570 processor and ATI Radeon HD 7500 graphics via DisplayPort, and while 4K resolution was correctly established, performance was slow (e.g. moving the mouse does not lead to a smooth path on the monitor). I tried it on a newer PC that had MSI Geforce GTX 760 Twin Frozr, DisplayPort, OpenSUSE 13.1, and there was a significant improvement. But still, it was not quite the quality I wanted, e.g. dragging applications around the screen on KDE wasn’t as smooth as I expected it to be based on my experience with KDE on 1680x1050 resolution monitors.
I was just wondering, is there a way to solve this in OpenSUSE, or does this perhaps mean that I need a better graphics card?
Correction: my newer PC actually has an “NVIDIA Corporation GK107 [GeForce GT 630 OEM] (rev a1)” graphics card (and not the MSI Geforce GTX 760 I mentioned in my previous post)
Additional information: I just noticed that while 4K is supported by the GeForce GT 630 OEM, it only does so with a 30 Hz refresh frequency, leading to the rough UI experience. This is true for both OpenSUSE and Windows 8 (with the latest driver installed). Does anyone have recommendations for a graphics card that supports 4K resolution @60 Hz on OpenSuSE 13.1?