@nikola is this the same laptop? Here are the same pieces of data from
my Lenovo Ideapad 330S-15ARR:
sudo acpidump | grep -C3 ELAN
5B10: 39 5F 48 49 44 00 A0 13 93 54 43 50 44 0A 02 A4 9_HID....TCPD...
5B20: 0D 53 59 4E 41 33 32 35 35 00 A0 13 93 54 43 50 .SYNA3255....TCP
5B30: 44 0A 03 A4 0D 41 4C 50 53 31 32 31 45 00 A4 0D D....ALPS121E...
5B40: 45 4C 41 4E 34 36 39 44 00 08 45 49 43 30 11 21 ELAN469D..EIC0.!
5B50: 0A 1E 8E 19 00 01 00 01 02 00 00 01 06 00 80 1A ................
5B60: 06 00 15 00 5C 5F 53 42 2E 49 32 43 44 00 79 00 ....\_SB.I2CD.y.
5B70: 08 53 49 43 30 11 21 0A 1E 8E 19 00 01 00 01 02 .SIC0.!.........
dmesg | grep i2c
[ 1.015986] i2c /dev entries driver
[ 1.662298] i2c_hid i2c-ELAN469D:00: i2c-ELAN469D:00 supply vdd not found,
using dummy regulator
[ 2.684046] i2c_designware AMDI0010:01: controller timed out
Oddly, the ACPI data is identical, but i2c_hid identifies yours as i2c-
ALPS121E:00 and mine as i2c-ELAN469D:00 ?
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https://bugs.launchpad.net/bugs/1795292
Title:
ELAN469D touch pad not working
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