I get:
$ xrandr -q
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 1872mm x 1053mm
   3840x2160     60.00*+ 59.94    50.00    29.97    25.00    23.98
   4096x2160     59.94    50.00    29.97    25.00    24.00    23.98
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.97    60.00    50.04
   1680x1050     59.95
   1600x900      60.00
   1440x900      59.89
   1366x768      59.79
   1280x1024     75.02    60.02
   1280x800      59.81
   1280x720      60.00    59.94    50.00
   1152x864      75.00
   1024x768      75.03    70.07    60.00
   800x600       75.00    72.19    60.32
   720x576       50.00    50.08
   720x480       59.94    60.05
   640x480       75.00    72.81    59.94
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)

Brian Cluff

On 06/23/2016 12:13 AM, Michael Butash wrote:

I'd love to be wrong here, but for years nvidia imposed a limitation of only 2 monitors possible at all when I was already doing 6x wide with ati on a 5870 card. As buggy as fglrx tended to be, it mostly worked as a desktop in ways nvidia seemingly could only dream.

What does this show on yours for the first line? The maximum is relevant here.

mb@host:~$ xrandr -q
Screen 0: minimum 320 x 200, current 11520 x 2160, maximum 16384 x 16384

-mb

On 06/21/2016 05:09 PM, Brian Cluff wrote:

I believe you've read into their Max Resolution incorrectly. The max resolution that Nvidia shows is the maximum the card can drive any single monitor... so in other words the 1080 is capable of driving an 8K monitor as well as whatever other monitors you happen to have hooked up. You can run whatever monitors it supports in whatever configuration you like and you will get the correct resolution that you are looking for.

Looking at the plugs available on the nvidia 1080 it looks like it would easily drive 3-8K monitors and a 4K monitor all at the same time giving you 26880x4320

Brian Cluff