https://bugs.freedesktop.org/show_bug.cgi?id=93405 --- Comment #12 from Pierre Moreau --- I highly doubt your card could output 4K (maybe on perflvl 0f, but for reclocking on that card you need kernel 4.4), and even if it did, I don't think it supports HDMI 1.4 or DisplayPort 1.3(?) which are needed to support 4K at, at least, 30Hz. -- You are receiving this mail because: You are the assignee for the bug.