I will add the necessary information in the following days piece by piece. Today, I had this issue at first Ubuntu 12.04 x64 - 3.2.0-30-generic, after a clean boot:
dmesg | grep psmouse [ 27.462037] psmouse serio4: synaptics: Touchpad model: 1, fw: 7.2, id: 0x1c0b1, caps: 0xd047b3/0xb40000/0xa0000 [ 27.462053] psmouse serio4: synaptics: serio: Synaptics pass-through port at isa0060/serio4/input0 [ 5842.313613] psmouse serio4: TouchPad at isa0060/serio4/input0 lost synchronization, throwing 5 bytes away. [ 5842.336390] psmouse serio4: resync failed, issuing reconnect request dmesg | grep thinkpad [ 28.377479] thinkpad_acpi: ThinkPad ACPI Extras v0.24 [ 28.377483] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 28.377486] thinkpad_acpi: ThinkPad BIOS 8GET42WW (1.19 ), EC 8GHT28WW-1.10 [ 28.377489] thinkpad_acpi: Lenovo ThinkPad L520, model 785954G [ 28.378418] thinkpad_acpi: detected a 8-level brightness capable ThinkPad [ 28.378781] thinkpad_acpi: radio switch found; radios are enabled [ 28.378793] thinkpad_acpi: possible tablet mode switch found; ThinkPad in laptop mode [ 28.379875] thinkpad_acpi: asked for hotkey mask 0x078dffff, but firmware forced it to 0x008dffff [ 28.386885] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is blocked [ 28.402710] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one [ 28.403041] thinkpad_acpi: Console audio control enabled, mode: monitor (read only) [ 28.409029] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input10 As next, I will try the Mainline Kernel. ** Attachment added: "Xorg.0.log" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/896922/+attachment/3312189/+files/Xorg.0.log -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/896922 Title: Lenovo L520 - "psmouse.c: touchpad at isa0060/serio4/input0 lost sync" and stops working for seconds Status in “xserver-xorg-input-synaptics” package in Ubuntu: Incomplete Bug description: There are a lot of open bug-reports concerning this defect, but due to the most popular report was closed by developers, with the demand to open a new report if this persists, I open a new bug-report. When using the touchpad, it's often not working and stucks for seconds, in short, it is unusesable. This bug still happens in Ubuntu 11.10 on a Lenovo L520 with 3.0.0-13-generic. Its a Synaptics touchpad, maybe it's kernel bug. Dmesg produces the following output: [14861.416567] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [14861.417899] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [14861.419232] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [14861.420563] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [14861.424233] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [14861.424240] psmouse.c: issuing reconnect request [17240.238861] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 4 [17240.240191] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [17240.258248] psmouse.c: TouchPad at isa0060/serio4/input0 - driver resynched. [17695.950963] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [17695.955414] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [17695.956743] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [17695.960402] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [17695.961736] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1 [17695.961740] psmouse.c: issuing reconnect request Whoever is willing to fix this bug can earn a lot of Karma for closing all the duplicates, so please fix this, it's happening since Maverick. Of course I'll will help you getting this fixed with any information you need. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-13-generic 3.0.0-13.22 ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6 Uname: Linux 3.0.0-13-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu4 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mathias 15841 F.... pulseaudio CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xf0900000 irq 43' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:10ec0269,17aa21de,00100100 HDA:80862805,80860101,00100000' Controls : 24 Simple ctrls : 11 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 8GHT26WW-1.080000' Mixer name : 'ThinkPad EC 8GHT26WW-1.080000' Components : '' Controls : 1 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Date: Sun Nov 27 17:58:09 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: LENOVO 785954G ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic root=UUID=cf5078bd-6bdb-4d1b-a1bb-92d20c5ac60d ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.0.0-13-generic N/A linux-backports-modules-3.0.0-13-generic N/A linux-firmware 1.60 SourcePackage: linux StagingDrivers: rts_pstor mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/06/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8GET37WW (1.14 ) dmi.board.name: 785954G dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8GET37WW(1.14):bd10/06/2011:svnLENOVO:pn785954G:pvrThinkPadL520:rvnLENOVO:rn785954G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 785954G dmi.product.version: ThinkPad L520 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/896922/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp