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[Nico <694087@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-input-evdev

Evdev fails to correctly configure horizontal scrolling for the
Microsoft Comfort Mouse 4500.

Instead of buttons 6 and 7 a third axis (valuator 2) is recognized.
Pushing the scroll wheel to the left (right) causes a decrease
(increase) of valuator 2. No button event is shown in xev. Valuator 2
was associated to GAS. I think it rather should be associated to HWHEEL.

xinput test 8
motion a[0]=742 a[1]=1047 a[2]=0 
motion a[0]=741 a[1]=1045 a[2]=1 
motion a[0]=739 a[1]=1043 a[2]=2 
motion a[0]=737 a[1]=1041 a[2]=3 

xinput list 8
Microsoft Microsoft® Comfort Mouse 4500	id=8	[slave  pointer  (2)]
	Reporting 5 classes:
		Class originated from: 8
		Buttons supported: 13
		Button labels: Button Left Button Middle Button Right Button Wheel Up Button Wheel Down Button Horiz Wheel Left Button Horiz Wheel Right Button Side Button Extra Button Unknown Button Unknown Button Unknown Button Unknown
		Button state:
		Class originated from: 8
		Keycodes supported: 248
		Class originated from: 8
		Detail for Valuator 0:
		  Label: Abs X
		  Range: -1.000000 - -1.000000
		  Resolution: 1 units/m
		  Mode: relative
		Class originated from: 8
		Detail for Valuator 1:
		  Label: Abs Y
		  Range: -1.000000 - -1.000000
		  Resolution: 1 units/m
		  Mode: relative
		Class originated from: 8
		Detail for Valuator 2:
		  Label: Abs Gas
		  Range: -1.000000 - -1.000000
		  Resolution: 1 units/m
		  Mode: relative

** Affects: xserver-xorg-input-evdev (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/694087

Title:
  Microsoft Comfort Mouse 4500 wrong axis