After much fighting back and forth with questionable specs, I now have everything set up with HDMI 2.0 comaptible devices and am trying to get my 2160p @ 60Hz. I’ve got an MSI GTX 950 I can see 3840x2160 59.9 show up now in xrandr, but when I try to set it to that resolution I get an error message.
xrandr --output HDMI-0 --mode 3840x2160 --rate 59.9
xrandr: Configure crtc 0 failed X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 21 (RRSetCrtcConfig) Value in failed request: 0x0 Serial number of failed request: 53 Current serial number in output stream: 53
Using nvidia-settings, I get:
Failed to set MetaMode (1) 'DPY-2: 3840x2160_60 +0+0' (Mode 3840x2160, id: -1) on X screen 0 Would you like to remove this MetaMode?
I’m using Ubuntu 15.04 with NVIDIA driver version 352.30. X Server version is 1.17.1. NV-Control version is 1.29.