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From: "Лежанкин Иван" <abyss.7@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Logitech T650 is unusable since 3.19.0
Date: Mon, 23 Mar 2015 11:21:02 +0300	[thread overview]
Message-ID: <CAJc7LbqPY0hcF-JJh+NUDws8UcoMRfodzZ35q34BPQ+3JAktCA@mail.gmail.com> (raw)

Hi,

after update from 3.18.7 to 3.19.x my Logitech touchpad became almost
unusable. I use OpenSUSE Thumbleweed and tried both custom and vanilla
kernels. AFAIK, the problem may come with this changes:
http://lkml.iu.edu/hypermail/linux/kernel/1412.1/03246.html

The symptoms are as follows.

1. The touch density is twice reduced: I have to make longer finger
motion for a smaller pointer movement. Possibly, it's because the KDE
starts to detect the touchpad as touchpad - and not the mouse as it
was before - and applies some preferences like the pointer
acceleration, etc.

2. Some gestures stopped to work: 3-finger swipe up, down, left, right
- so, there are no more "history back-forward", "SuperKey", and
"SuperKey + d".

3. Multi-finger tap detection is awful: it doesn't detect 3-finger tap
in 50%, it sometimes detects 2-finger tap instead of click+drag, or
when the second finger is slightly touching the surface.

Can anyone make a suggestion what should I do, but to stay on an older
kernel version?

             reply	other threads:[~2015-03-23  8:21 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-23  8:21 Лежанкин Иван [this message]
2015-03-23  9:09 ` Logitech T650 is unusable since 3.19.0 Borislav Petkov
2015-03-23 14:59   ` Benjamin Tissoires
2015-03-24  6:00     ` Peter Hutterer
2015-03-24 17:29       ` Лежанкин Иван

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