Ubuntu
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  1. Bug #1490130
  2. Comment #0

Comment 0 for bug 1490130

Revision history for this message
Harris Anggara (harrisanggara) wrote : Elantech touchpad stops working after suspend

i have asus a455ld i5 5200u running kubuntu 15.04 with kernel 4.0.8-040008-generic.
touchpad is recognized as elantech version 4. everything was fine until my notebook go to suspend and resume without touchpad working.
I tried :
modprobe -r psmouse
modprobe psmouse

it only work before suspend.
execute those commands after resume from suspend is not working.

the last thing i tried is this.

when i use this command before suspend :

insmod /lib/modules/4.0.8-040008-generic/kernel/drivers/input/mouse/psmouse.ko

these appear in the dmesg:

[ 820.207105] psmouse serio1: elantech: assuming hardware version 4 (with firmware version 0x381f00)
[ 820.222270] psmouse serio1: elantech: Synaptics capabilities query result 0x10, 0x14, 0x0e.
[ 820.294698] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input146

but when i use the command after suspend, there is nothing any output in the dmesg.

i tried all ubuntu varian and opensuse 13.2 live usb, the result is the same.
but in windows 10, touchpad still active after suspend.