1) Synaptics support is present:
# grep -i synapt /lib/modules/`uname -r`/build/.config
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_SYNAPTICS_I2C=m
2) Synaptincs X.org package is present:
# dpkg -l | grep -i synap
ii xserver-xorg-input-synaptics 1.2.2-1ubuntu4
Synaptics TouchPad driver for X.Org server
3)
# dmesg | grep 8042
[ 5.700307] i8042.c: Detected active multiplexing controller, rev 1.1.
[ 5.703862] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 5.703868] serio: i8042 AUX0 port at 0x60,0x64 irq 12
[ 5.703871] serio: i8042 AUX1 port at 0x60,0x64 irq 12
[ 5.703873] serio: i8042 AUX2 port at 0x60,0x64 irq 12
[ 5.703876] serio: i8042 AUX3 port at 0x60,0x64 irq 12
[ 5.726555] input: AT Translated Set 2 keyboard as
/devices/platform/i8042/serio0/input/input2
[ 13.354230] input: ImPS/2 Generic Wheel Mouse as
/devices/platform/i8042/serio2/input/input7
For now, the workaround I use is disabling the touchpad device using XInput -
I've written a script which is run during KDE session startup:
# cat disable_touchpad.sh
#!/bin/sh
xinput set-prop 'ImPS/2 Generic Wheel Mouse' 122 0
--
Laptop ALPS touchpad not detected, not working
https://bugs.launchpad.net/bugs/377741
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