** Summary changed:
- Elantech - Touchpad not working after upgrading to 18.10 from 18.04 (ThinkPad
L480|L580|P72)
+ Elantech - Touchpad not working after upgrading to 18.10 from 18.04 (ThinkPad
L480|L580|P72|P52)
** Summary changed:
- Elantech - Touchpad not working after upgrading to 18.10 from 18.04 (ThinkPad
L480|L580|P72|P52)
+ Elantech - Touchpad not working after upgrading to 18.10 from 18.04
** Description changed:
- When updating from 18.04 to 18.10 on a ThinkPad L480 the Elantech
- touchpad stopped working. This means it is not recognized at all. This
- problem occured after the first boot in 18.10
+ Confirmed affected laptops:
+ ThinkPad:
+ L480
+ L580
+ P72
+ P52
+
+
+ When updating from 18.04 to 18.10 on a ThinkPad L480 the Elantech touchpad
stopped working. This means it is not recognized at all. This problem occured
after the first boot in 18.10
`dmesg | grep -i elantech` shows the following errors:
- [3.409043] psmouse serio1: elantech: assuming hardware version 4
(with firmware version 0x5f3001)
- [3.427372] psmouse serio1: elantech: Synaptics capabilities query
result 0x90, 0x18, 0x10.
- [3.447275] psmouse serio1: elantech: Elan sample query result 00, 23,
c8
- [3.464905] psmouse serio1: elantech: Trying to set up SMBus access
- [5.576149] elan_i2c 0-0015: 0-0015 supply vcc not found, using dummy
regulator
- [5.586505] elan_i2c 0-0015: failed to get resolution: -71
- [5.586527] elan_i2c: probe of 0-0015 failed with error -71
+ [3.409043] psmouse serio1: elantech: assuming hardware version 4
(with firmware version 0x5f3001)
+ [3.427372] psmouse serio1: elantech: Synaptics capabilities query
result 0x90, 0x18, 0x10.
+ [3.447275] psmouse serio1: elantech: Elan sample query result 00, 23,
c8
+ [3.464905] psmouse serio1: elantech: Trying to set up SMBus access
+ [5.576149] elan_i2c 0-0015: 0-0015 supply vcc not found, using dummy
regulator
+ [5.586505] elan_i2c 0-0015: failed to get resolution: -71
+ [5.586527] elan_i2c: probe of 0-0015 failed with error -71
uname:
- $ uname -a
- Linux test 4.18.0-10-generic #11-Ubuntu SMP Thu Oct 11 15:13:55 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
+ $ uname -a
+ Linux test 4.18.0-10-generic #11-Ubuntu SMP Thu Oct 11 15:13:55 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
I found the following thread which solves the problem temporarly (and reports
the same problem in Arch):
https://bugs.archlinux.org/task/59714
Running the following command enables it again for the current session:
- sudo sh -c 'echo -n "elantech">
+ sudo sh -c 'echo -n "elantech">
/sys/bus/serio/devices/serio1/protocol'
dmesg afterwards:
- [ 569.522490] psmouse serio1: elantech: assuming hardware version 4
(with firmware version 0x5f3001)
- [ 569.544584] psmouse serio1: elantech: Synaptics capabilities query
result 0x90, 0x18, 0x10.
- [ 569.565939] psmouse serio1: elantech: Elan sample query result 00, 23,
c8
+ [ 569.522490] psmouse serio1: elantech: assuming hardware version 4
(with firmware version 0x5f3001)
+ [ 569.544584] psmouse serio1: elantech: Synaptics capabilities query
result 0x90, 0x18, 0x10.
+ [ 569.565939] psmouse serio1: elantech: Elan sample query result 00, 23,
c8
Before running the fix:
- $ cat /sys/bus/serio/devices/serio1/protocol
- ETSMBus
+ $ cat /sys/bus/serio/devices/serio1/protocol
+ ETSMBus
and after:
- $ cat /sys/bus/serio/devices/serio1/protocol
- ETPS/2
-
+ $ cat /sys/bus/serio/devices/serio1/protocol
+ ETPS/2
After reboot the command has to be run again, of course.
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: xorg 1:7.7+19ubuntu8
ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
Uname: Linux 4.18.0-11-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: KDE
Date: Thu Nov 15 20:59:36 2018
DistUpgraded: 2018-11-10 09:56:53,358 DEBUG icon theme changed, re-reading
DistroCodename: cosmic
DistroVariant: ubuntu
DkmsStatus:
- virtualbox, 5.2.18, 4.15.0-38-generic, x86_64: installed
- virtualbox, 5.2.18, 4.18.0-10-generic, x86_64: installed
- virtualbox, 5.2.18, 4.18.0-11-generic, x86_64: installed
+ virtualbox, 5.2.18, 4.15.0-38-generic, x86_64: installed
+ virtualbox, 5.2.18, 4.18.0-10-generic, x86_64: installed
+ virtualbox, 5.2.18, 4.18.0-11-generic, x86_64: installed
GraphicsCard:
- Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
-Subsystem: Lenovo UHD Graphics 620 [17aa:506a]
+ Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
+ Subsys
