touchpad stopped working
Bug #1558489 reported by
Koen Roggemans
This bug affects 14 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-meta-lts-trusty (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned | ||
linux-meta-lts-xenial (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
with a dist-upgrade 14.04 upgraded from kernel 3.19.56 over 4.2.36 to 4.4.0 Both in 4.2 and in 4.4 the touchpad is not working.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-generic-
ProcVersionSign
Uname: Linux 4.4.0-13-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Mar 17 11:54:18 2016
InstallationDate: Installed on 2016-03-16 (1 days ago)
InstallationMedia: Ubuntu 14.04.4 LTS "Trusty Tahr" - Release amd64 (20160217.1)
SourcePackage: linux-meta-
UpgradeStatus: No upgrade log present (probably fresh install)
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I'm wrong.
3.19.0-51 is the last version I found where the touchpad works.
All higher versions (including 3.19.0-56) are not ok
Touchpad is SYN1B7D:01 06CB:2991 and SYN1B7D:01 06CB:74D9
I don't know where the second type number comes from. The devices are Acer B115. Acer has upgraded the firmware of the touchpads due to erratic cursor behaviour. Next time I looked, the 2991 seemed to have changed to 74D9.