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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Logitech M500 behavior"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96225#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Logitech M500 behavior"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96225">bug 96225</a>
from <span class="vcard"><a class="email" href="mailto:jeremy9856@gmail.com" title="Paviluf <jeremy9856@gmail.com>"> <span class="fn">Paviluf</span></a>
</span></b>
<pre>(In reply to Peter Hutterer from <a href="show_bug.cgi?id=96225#c2">comment #2</a>)
<span class="quote">> can you run the mouse-dpi-tool please, just making sure we have the dpi
> setting correct.</span >
Hello Peter,
Here is the output of mouse-dpi-tool.
Mouse Logitech USB Laser Mouse on /dev/input/event2
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: 17796 at frequency 126.0Hz /^C
Estimated sampling frequency: 126Hz
To calculate resolution, measure physical distance covered
and look up the matching resolution in the table below
1130mm 44.49in 400dpi
753mm 29.66in 600dpi
565mm 22.25in 800dpi
452mm 17.80in 1000dpi
376mm 14.83in 1200dpi
322mm 12.71in 1400dpi
282mm 11.12in 1600dpi
251mm 9.89in 1800dpi
226mm 8.90in 2000dpi
205mm 8.09in 2200dpi
188mm 7.42in 2400dpi
If your resolution is not in the list, calculate it with:
resolution=17796/inches, or
resolution=17796 * 25.4/mm
Entry for hwdb match (replace XXX with the resolution in DPI):
mouse:usb:v046dpc069:name:Logitech USB Laser Mouse:
MOUSE_DPI=XXX@126
I did several 300/400mm mouvements and I found that the dpi is about 1100 /
1130. According to the specifications the mouse dpi is 1000 (
<a href="https://secure.logitech.com/en-us/product/corded-mouse-m500">https://secure.logitech.com/en-us/product/corded-mouse-m500</a> )</pre>
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