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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/896922 Title: Lenovo L520 - "psmouse.c: touchpad at isa0060/serio4/input0 lost sync" and stops working for seconds To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/896922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
