Life with my new 4k monitor -- Dell P2715q

Bought one of these beauties on sale from Dell this week.
Replaced 3 smaller monitors with 1 monitor.

> xrandr
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 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
DP-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
   3840x2160     60.00*+
   2560x1440     59.95
   1920x1200     59.88
   1920x1080     60.00    60.00    59.94    50.00    23.97    60.00    50.04
   1680x1050     59.95
   1600x1200     60.00
   1280x1024     75.02    60.02
   1280x800      59.81
   1280x720      60.00    59.94    50.00
   1152x864      75.00
   1024x768      75.03    60.00
   800x600       75.00    60.32
   720x576       50.00    50.08
   720x480       59.94    60.05
   640x480       75.00    59.94    59.93

60Hz 3840x2160 across the DP-1 connection from an Nvidia 760.

Some small changes like setting a custom DPI in XFCE to 104 and changing my urxvt font from 6x13 to 8x13.  But otherwise pretty seamless.  I did reboot to clear a dangling DVI-I connection.

Very happy with this monitor.  I am test driving it at work for a while. 

Removed my automatic xrandr script and removed some changes to /etc/gdm/Init/Default that were necessary for the 3 monitor setup.
So nice to have so many pixels this close together.

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