After a fresh install of breezy colony 3, mouse scroll wheel no longer works.

[Rob Lesan]

After installing colony 3, the scroll wheel that works under Hoary does not work
in any application.

This is an HP USB obtical mouse.

output of dmesg:

[4294682.150000] mice: PS/2 mouse device common for all mice
[4294682.471000] input: ImPS/2 Generic Wheel Mouse on isa0060/serio1

a dump of /dev/psaux indicates that scroll wheel events seem to be recognized.

lspci listing:
0000:00:00.0 Host bridge: Intel Corp. 915G/P/GV Processor to I/O Controller (rev 04)
0000:00:01.0 PCI bridge: Intel Corp. 915G/P/GV PCI Express Root Port (rev 04)
0000:00:1b.0 0403: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) High
Definition Audio Controller (rev 03)
0000:00:1c.0 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI
Express Port 1 (rev 03)
0000:00:1d.0 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB
UHCI #1 (rev 03)
0000:00:1d.1 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB
UHCI #2 (rev 03)
0000:00:1d.2 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB
UHCI #3 (rev 03)
0000:00:1d.3 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB
UHCI #4 (rev 03)
0000:00:1d.7 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family)
USB2 EHCI Controller (rev 03)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev d3)
0000:00:1f.0 ISA bridge: Intel Corp. 82801FB/FR (ICH6/ICH6R) LPC Interface
Bridge (rev 03)
0000:00:1f.1 IDE interface: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE
Controller (rev 03)
0000:00:1f.2 IDE interface: Intel Corp. 82801FB/FW (ICH6/ICH6W) SATA Controller
(rev 03)
0000:00:1f.3 SMBus: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus
Controller (rev 03)
0000:01:00.0 VGA compatible controller: nVidia Corporation: Unknown device 0141
(rev a2)
0000:03:01.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host
Controller (rev 80)
0000:03:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
0000:03:07.0 Communication controller: Lucent Microelectronics V.92 56K WinModem
(rev 03)

[Rob Lesan (rcliii)]

As reported here:
http://www.ubuntuforums.org/showthread.php?t=57794&highlight=mouse+scroll+wheel
running 'sudo dpkg-reconfigure xserver-xorg' and selecting all the defaults gets
the scroll wheeling working again.

[Matt Zimmerman (mdz)]

Please attach a copy of your current /etc/X11/xorg.conf, as well as the backup
of the original one (/etc/X11/xorg.conf.YYYYMMDDhhmm)

[Rob Lesan (rcliii)]

Created an attachment (id=3278)
current xorg.conf (scroll wheel works)

[Rob Lesan (rcliii)]

Created an attachment (id=3279)
old xorg.conf (broken scroll wheel)

[Tobi Vollebregt (tobivollebregt)]

Same problem. I fixed it by adding the line:
 Option "ZAxisMapping" "4 5"
to my mouse's InputDevice section in xorg.conf. This was autodetected in hoary.

"sudo dpkg-reconfigure xserver-xorg" works too.

[Alexandre Otto Strube (surak)]

Just to confirm, this is happening with any mouse I tested with live cd.
(several different generic ps/2 ones, and a ps/2 genius netscroll) since august
15 (or 16), I don't rembember live builds, not only with colony.

[Matt Zimmerman (mdz)]

This broke for me on an upgrade, despite having a correct-looking mouse section:

Section "InputDevice"
        Identifier "Configured Mouse"
        Driver "mouse"
        Option "CorePointer"
        Option "Device" "/dev/input/mice"
        Option "Protocol" "ImPS/2"
        Option "Emulate3Buttons" "true"
        Option "ZAxisMapping" "4 5"
EndSection

[Daniel Stone (daniels)]

This bug has been marked as a duplicate of bug 20008.