Traditionally the middle click worked by clicking by holding 3 fingers on the touchpad (similarly: the right click is done by clicking with 2 fingers on the touchpad)
The right click works fine, but the middle click now generates a button1 (left click) event
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-input-synaptics 1.5.0+git20120210-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-15.24-generic 3.2.5
Uname: Linux 3.2.0-15-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CurrentDmesg:
[ 2368.635035] do_trap: 45 callbacks suppressed
[ 2368.635040] gsettings-data-[4757] trap int3 ip:7f72edda1f2b sp:7fff8d2f4800 error:0
[ 2368.941534] gsettings-data-[4784] trap int3 ip:7f1e90249f2b sp:7fff0c0e31f0 error:0
[ 2371.194472] bzr-notify[4812]: segfault at 7fff30b0afa8 ip 00007f22f70c074b sp 00007fff30b0afb0 error 6 in libc-2.15.so[7f22f7079000+1b1000]
[ 2377.813128] unity-applicati[4875]: segfault at 0 ip 00007fd35b4f7c98 sp 00007fff34d53db0 error 4 in libdee-1.0.so.4.1.0[7fd35b4df000+33000]
Date: Sun Feb 19 17:38:14 2012
DistUpgraded: Log time: 2012-01-20 14:57:34.146746
DistroCodename: precise
DistroVariant: ubuntu
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64+mac (20111012)
MachineType: Apple Inc. MacBook3,1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-15-generic root=UUID=0cbf08e2-4a82-472b-835a-54e8ff6da4e3 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-input-synaptics
UpgradeStatus: Upgraded to precise on 2012-01-20 (30 days ago)
dmi.bios.date: 03/05/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MB31.88Z.008E.B02.0803051832
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F22788C8
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 2
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F22788C8
dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8:
dmi.product.name: MacBook3,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu33
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu5
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2
Status changed to 'Confirmed' because the bug affects multiple users.