Bug 87271

Summary:	Mouse DPI data for various mice
Product:	systemd	Reporter:	Tom Hughes <tom>
Component:	general	Assignee:	Peter Hutterer <peter.hutterer>
Status:	RESOLVED FIXED	QA Contact:	systemd-bugs
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Tom Hughes 2014-12-12 20:09:09 UTC

Mouse DPI data for various mice I had hanging around:

# Logitech RX1000 Laser Mouse
mouse:usb:v046dpc046:name:Logitech USB Optical Mouse:
 MOUSE_DPI=1000@125

# Logitech MX310 Optical Mouse
mouse:usb:v046dpc01b:name:Logitech USB-PS/2 Optical Mouse:
 MOUSE_DPI=400@125

# Logitech M-BJ58 Optical Mouse
mouse:usb:v046dpc00e:name:Logitech USB-PS/2 Optical Mouse:
 MOUSE_DPI=400@125

# Logitech M100 Optical Mouse
mouse:usb:v046dpc05a:name:Logitech USB Optical Mouse:
 MOUSE_DPI=1000@125

Note that googling produces many claims that both the MX310 and the M-BJ58 are 800 dpi but they certainly don't measure that way with the test tool.

Comment 1 Zbigniew Jedrzejewski-Szmek 2014-12-12 23:40:14 UTC

Added in http://cgit.freedesktop.org/systemd/systemd/commit/?id=e31fc1417a.

> Note that googling produces many claims that both the MX310 and the M-BJ58
> are 800 dpi but they certainly don't measure that way with the test tool.
Let's use your measurements until proven otherwise.

I'm starting to suspect that Logitech mice with the same identifiers can have different DPI. I have a Logitech M100 which I measured as 806 DPI, which is 1000 DPI in our database.

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