Public bug reported:
Release: Ubuntu 15.04
Hardware: Logitech TK820 wireless keyboard with touchpad
I've been using the said hardware with ubuntu in all releases since
13.10 without problems. All touchpad features were working fine until I
received in 15.04 the automatic update to kernel version 3.19.0-22. This
kernel introduced a condition in which, at times, the system started
randomly registering keyboard input when pointing with the touchpad.
The original bug got apparently fixed in kernel version 3.19.0-25, but
as a result this kernel version broke completely all tap-events for my
touchpad. They are not registering at all. Pointing and scrolling work,
so do the mechanical click-switches in the corners, but tapping or
sweeping with one or more fingers does not get registered even though
the settings were never touched. I now got kernel update to 3.19.0-26,
but the bug persists in this version, too.
At the moment I had to revert back to kernel version 3.19.0-16 in order
to be able to use my touchpad normally.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- Touchpad tap-event support broken since kernel 3.19.0-26
+ Touchpad tap-event support broken since kernel 3.19.0-25
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https://bugs.launchpad.net/bugs/1487334
Title:
Touchpad tap-event support broken since kernel 3.19.0-25
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