some records from my dmesg :
model code and BIOS version :
DMI: ASUSTeK COMPUTER INC. X302LA/X302LA, BIOS X302LA.203 04/20/2015
i8042/serio/psmouse/elantech lines :
i8042: PNP: PS/2 Controller [PNP030b:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Translated Set 2 keyboard as
/devices/platform/i8042/serio0/input/input3
psmouse serio1: elantech: assuming hardware version 4 (with firmware version
0x381f00)
psmouse serio1: elantech: Synaptics capabilities query result 0x10, 0x14, 0x0e.
psmouse serio1: elantech: Elan sample query result 00, 23, 64
input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input5
after manual mod-reprobe without pm-suspend :
psmouse serio1: elantech: assuming hardware version 4 (with firmware version
0x381f00)
psmouse serio1: elantech: Synaptics capabilities query result 0x10, 0x14, 0x0e.
psmouse serio1: elantech: Elan sample query result 00, 23, 64
input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input292
(then touchpad dies off)
$ ls -l /etc/pm/sleep.d/05_elantech
-rwxr-xr-x 1 root root 128 лис 22 20:33 /etc/pm/sleep.d/05_elantech
$ cat /etc/pm/sleep.d/05_elantech
#!/bin/sh
case "$1" in
suspend|hibernate)
modprobe -r psmouse ;;
resume|thaw)
modprobe psmouse ;;
esac
after initial boot and pm-suspend : touchpad dies off, no records about
its re-detection appear in dmesg
now preparing to try a patch posted to linux-input mail list referred to
at #8
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https://bugs.launchpad.net/bugs/1490130
Title:
Elantech touchpad stops working after suspend
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