Comment 14 for bug 366261

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Bela Lubkin (filbo) wrote :

My instance (INCLUDES WORKAROUND):

HP Pavilion dv7-6175us (model LW172UA#ABA)
Ubuntu 12.04 x86_64
Kernel 3.2.0-21-generic #34-Ubuntu

After sleep (pm-suspend), messages appear when typing (probably when touching keyboard or touchpad):

   kernel: [ t ] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 4
   kernel: [ t + ~3ms] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
   kernel: [ t + ~5ms] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
   kernel: [ t + ~8ms] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
   kernel: [ t + ~9ms] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
   kernel: [ t + ~9ms] psmouse serio1: issuing resync request
   ...
   kernel: [ u ] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
   kernel: [ u + ~2ms] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
   kernel: [ u + ~12ms] psmouse serio1: TouchPad at isa0060/serio1/input0 - driver resynced.
   ...

[sets similar to these repeat as I use the keyboard & touchpad]

While this is going on, keyboard input may miss some make- or break-strokes.

Worked around this by doing:

   $ sudo rmmod psmouse; sudo insmod /lib/modules/$(uname -r)/kernel/drivers/input/mouse/psmouse.ko

resulting in:

   kernel: [ v ] psmouse serio1: synaptics: TouchPad model: 1, fw: 7.5, id: 0x1e0b1, caps: 0xd00073/0x240000/0xa0400
   kernel: [ v + ~52ms ] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input15

Note that `modprobe psmouse` does not work, it apparently won't notice the presence of the hardware ???