On Thu, 10 Aug 2017 16:39:33 +0200, Ralf Mardorf wrote:
>[rocketmouse@archlinux ~]$ xdpyinfo | grep "screen" -A2 # HDMI LCD on
>and VGA CRT off
>default screen number:    0
>number of screens:    1
>
>screen #0:
>  dimensions:    1920x1080 pixels (506x285 millimeters)
>  resolution:    96x96 dots per inch  
                  ^^^^^

[rocketmouse@archlinux ~]$ xdpyinfo | grep "screen" -A2 # HDMI LCD on
and VGA CRT off default screen number:    0
number of screens:    1

screen #0:
  dimensions:    1920x1080 pixels (502x282 millimeters)
  resolution:    97x97 dots per inch
                 ^^^^^
Seemingly xdpyinfo is buggy, not only the millimeters are wrong, also
the dpi value isn't always the same.

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