$ sudo ./mouse-dpi-tool /dev/input/event17 Mouse Arc Touch Mouse SE on /dev/input/event17 Move the device 250mm/10in or more along the x-axis. Pause 3 seconds before movement to reset, Ctrl+C to exit. Covered distance in device units: 11345 at frequency infHz Hz\^C - Estimated sampling frequency: -2147483648Hz To calculate resolution, measure physical distance covered and look up the matching resolution in the table below 720mm 28.36in 400dpi 480mm 18.91in 600dpi 360mm 14.18in 800dpi 288mm 11.35in 1000dpi 240mm 9.45in 1200dpi 205mm 8.10in 1400dpi 180mm 7.09in 1600dpi 160mm 6.30in 1800dpi 144mm 5.67in 2000dpi 130mm 5.16in 2200dpi 120mm 4.73in 2400dpi If your resolution is not in the list, calculate it with: resolution=11345/inches, or resolution=11345 * 25.4/mm Entry for hwdb match (replace XXX with the resolution in DPI): mouse:bluetooth:v045ep07f3:name:Arc Touch Mouse SE: MOUSE_DPI=XXX@-2147483648 The estimated frequency is completely out of whack, but the USB dongley version of the mouse is advertised as 1000dpi: http://www.cnet.com/products/microsoft-arc-touch-mouse-black-series/specs/
Can you try again with this patch applied please? http://lists.freedesktop.org/archives/input-tools/2015-May/001168.html the specs claim a frequency of up to 8000hz
I could only get it up to 2000Hz. Rounded up, it gives: mouse:bluetooth:v045ep07f3:name:Arc Touch Mouse SE: MOUSE_DPI=1000@2000
thanks, pushed. http://cgit.freedesktop.org/systemd/systemd/commit/hwdb/70-mouse.hwdb?id=3641cff2f1bce4f8d8a46ab9bb988093d45aa697
libevdev mouse-dpi-tool fix: commit e1d87fa6dfa9cdd3ade490911db49e48871a1295 Author: Peter Hutterer <peter.hutterer@who-t.net> Date: Thu May 21 11:48:34 2015 +1000 tools: widen frequency resolution to µs in the DPI tool
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