Comment 3 for bug 694087

On my 10.04 i386 Desktop PC the horizontal mouse wheel works not.

2.6.32-40-generic-pae #87-Ubuntu SMP Mon Mar 5 21:44:34 UTC 2012 i686 GNU/Linux

xserver-xorg-input-evdev 1:2.3.2-5ubuntu1 (lucid)

xinput test 8

button press 1
button release 1
button press 2
button release 2
button press 3
button release 3
motion a[0]=738 a[1]=87 a[2]=-34
button press 4
button release 4
motion a[0]=738 a[1]=87 a[2]=-34
button press 5
button release 5
motion a[0]=738 a[1]=87 a[2]=-35
motion a[0]=738 a[1]=87 a[2]=-36
motion a[0]=738 a[1]=87 a[2]=-35
motion a[0]=738 a[1]=87 a[2]=-34
button press 8
button release 8
button press 9
button release 9

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

On my Lenovo Thinkpad X121e with 12.04 beta2 amd64 with all updates the horizontal mouse wheel works.