Setting new mode for 2nd monitor fails

[Andrej van der Zee]

Hi Thomas,

Just tried, also does not work. Anyways, I just realized that in Unity on
Ubuntu I am running 2560x1440 on my 2nd monitor (mac retina 4k screen) but
all icons are in right size. Somehow it sets the correct dpi I guess.

Just wanted to switch to i3 and all icons are too big on my 2nd monitor.
Any idea how I can fix I3 to have my second display use the proper icon
sizes?  Probably I am on the wrong mailing list ;-)


$ gtf 3840 2160 60

  # 3840x2160 @ 60.00 Hz (GTF) hsync: 134.10 kHz; pclk: 712.34 MHz
  Modeline "3840x2160_60.00"  712.34  3840 4152 4576 5312  2160 2161 2164
2235  -HSync +Vsync

andrej:/var/log$ xrandr --newmode "3840x2160_60.00"  712.34  3840 4152 4576
5312  2160 2161 2164 2235  -HSync +Vsync
andrej:/var/log$  xrandr --addmode DP1  "3840x2160_60.00"
andrej:/var/log$ xrandr --verbose --output DP1 --mode  "3840x2160_60.00"
screen 0: 6720x2160 1777x571 mm  96.05dpi
crtc 1: 3840x2160_60.00  60.00 +2880+0 "DP1"
xrandr: Configure crtc 1 failed
crtc 0: disable
crtc 1: disable
crtc 2: disable
crtc 3: disable
screen 0: revert
crtc 0: revert
crtc 1: revert
crtc 2: revert
crtc 3: revert
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