linux-kernel - Re: Logitech T650 is unusable since 3.19.0

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Date:	Mon, 23 Mar 2015 10:09:20 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Лежанкин Иван 
	<abyss.7@...il.com>
Cc:	linux-kernel@...r.kernel.org, Jiri Kosina <jkosina@...e.cz>,
	linux-input@...r.kernel.org
Subject: Re: Logitech T650 is unusable since 3.19.0

CC people.

On Mon, Mar 23, 2015 at 11:21:02AM +0300, Лежанкин Иван wrote:
> 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?
> --
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-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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