J. Domburg <jeroen <at> spritesmods.com> writes: > > Hello everyone, > > I hope I'm at the right address here with my problems. If not, please do > point me in the correct direction. > > I have a Lenovo Thinkpad T440s with a Synaptics clickpad and an IBM > trackpoint in it: > > input: PS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input120 > psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x127c00, > board id: 2668, fw id: 1293989 > psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0 > input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input123 > psmouse serio34: alps: Unknown ALPS touchpad: E7=10 00 64, EC=10 00 64 > psmouse serio34: trackpoint: IBM TrackPoint firmware: 0x0e, > buttons: 3/3 input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio34/input/input124 > > The problem is that the trackpoint behaves incredibly erratic, sometimes > working correctly for minutes at a time, sometimes just jumping around and > many times just hanging. I need to remove and re-insert the psmouse module > to solve that. Alongside this behaviour, my kernel log also is getting > spammed with messages like: > > psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 > psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 > psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 > psmouse serio1: TouchPad at isa0060/serio1/input0 - driver resynced. > and > psmouse serio1: bad data from KBC - timeout > > What I've tried: > - Tried the kernel options i8042.nomux=1 and i8042.reset=1 > - Disable acpi by passing acpi=off to the kernel > - Disabled CPU frequency scaling > - Trying other protocols, e.g. by doing modprobe psmouse proto=imps or > proto=bare > - Switching from vanilla 3.12 kernel to both the latest&greatest kernel > from Linus' Git and an antique 3.1.0 kernel > - Turning on i8042.debug. To my untrained eye, it looks like bytes of PS/2 > data are just disappearing when the 'lost sync' messages kick in. I can > give an example of that if needed. > > Strangely, the symptoms have been getting worse in the 10 days I've had > this machine: from the first few days with no trouble to today with the > mouse crapping out almost once every ten seconds or so. I would say it's a > DOA and claim my warranty, if not frustratingly the machine works > perfectly fine in Windows 8, with no touchpad trouble at all. > > I'm willing to try things on this machine, run patches or take any hint in > what I can change to get this working; if it helps I can even poke an > oscilloscope at the PS2 lines. Not having a working touchpad or > touchpoint is getting a bit frustrating... I'm experiencing exactly the same issue. I have my T440s now for a bit more than two weeks. No issues with the touchpad until today when it suddenly started acting up and I now see messages like these in dmesg: [ 2244.631822] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x127c00, board id: 2668, fw id: 1293989 [ 2244.631830] psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0 [ 2244.668037] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input34 [ 2247.518110] psmouse serio8: alps: Unknown ALPS touchpad: E7=10 00 64, EC=10 00 64 [ 2248.807888] psmouse serio8: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3 [ 2249.016659] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio8/input/input35 [ 2254.649940] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 2254.651179] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 2254.652358] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 2254.653594] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 2254.663943] psmouse serio1: TouchPad at isa0060/serio1/input0 - driver resynced. [ 2254.997536] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 4 [ 2254.998663] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 2254.999790] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 2255.000973] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 2255.002107] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 2255.002111] psmouse serio1: issuing reconnect request [ 2255.131535] psmouse serio1: synaptics: Unable to query device. [ 2255.598324] psmouse serio1: synaptics: device claims to have extended capability 0x0c, but I'm not able to read it. [ 2255.643293] psmouse serio1: synaptics: Unable to initialize device. [ 2255.767364] input: PS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input37 [ 2255.953314] psmouse serio1: synaptics: Unable to query device. Same as Jeroen, I'm willing to try anything that might help resolve this situation. Grs, Heinz -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
