** Changed in: linux (Ubuntu Xenial)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1594214
Title:
ETPS/2 Elantech Touchpad inconsistently detected (Gigabyte P57W
laptop)
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Committed
Status in linux source package in Zesty:
Fix Committed
Bug description:
SRU Justification
[Impact]
Touchpad on Gigabyte P57W laptop does not gets detected reliably.
[Test Case]
Touchpad not does not gets detected reliably.
With the patch, it can get detected reliably.
[Regression Potential]
Minimal. The change limits to a single specific laptop.
---
On my Gigabyte P57W laptop the ETPS/2 Elantech touchpad is
inconsistently detected at boot. Trying mainline 4.6 kernel did not
help.
WORKAROUND: Add kernel boot parameter:
i8042.kbdreset=1
The device is id=17 on xinput below:
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer
(2)]
⎜ ↳ Kingsis Peripherals Evoluent VerticalMouse 3 id=12 [slave pointer
(2)]
⎜ ↳ Sunrex/JME Ghost Key Elimiantion Keyboard id=14 [slave pointer
(2)]
⎜ ↳ ETPS/2 Elantech Touchpad id=17 [slave pointer
(2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave
keyboard (3)]
↳ Power Button id=6 [slave
keyboard (3)]
↳ Video Bus id=7 [slave
keyboard (3)]
↳ Video Bus id=8 [slave
keyboard (3)]
↳ Sleep Button id=9 [slave
keyboard (3)]
↳ Power Button id=10 [slave
keyboard (3)]
↳ Sleep Button id=11 [slave
keyboard (3)]
↳ Sunrex/JME Ghost Key Elimiantion Keyboard id=13 [slave
keyboard (3)]
↳ Chicony USB 2.0 Camera id=15 [slave
keyboard (3)]
↳ AT Translated Set 2 keyboard id=16 [slave
keyboard (3)]
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-4.4.0-24-generic 4.4.0-24.43~14.04.1
ProcVersionSignature: Ubuntu 4.4.0-24.43~14.04.1-generic 4.4.10
Uname: Linux 4.4.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
Date: Mon Jun 20 10:56:33 2016
InstallationDate: Installed on 2014-05-20 (761 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: linux-lts-xenial
UpgradeStatus: No upgrade log present (probably fresh install)
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