[Wayland-bugs] [Bug 100235] spurious input events

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100235

--- Comment #12 from Ritesh Raj Sarraf <rrs at researchut.com> ---
(In reply to Benjamin Tissoires from comment #11)
> The log clearly show a column of touches at coordinate X=967. From time to
> time we can see your true fingers, but the ghost line is still there. I
> doubt there is an issue in the USB communication but I strongly believe the
> FW fails at ignoring a ghost column of touches.
> 
> The weird part is that you do not have the same issue with Windows. It could
> be interesting comparing the USB events from Windows when inserting the
> driver from the ones we do under Linux. But I don't have high hope on
> whether it will help fixing the issue.

Thanks Benjamin.

I spent the rest of the day today, running it under Windows. Eventually, after
a couple of hours, I was able to reproduce it under Windows 8.1 too.

That led me to check Lenovo Support Forums.

https://support.lenovo.com/in/en/solutions/ht103512
http://laptopmedia.com/news/lenovos-solution-to-the-yoga-ghost-touches-problem/
https://forums.lenovo.com/t5/forums/v3_1/forumtopicpage/board-id/ll06_en/page/10/thread-id/26944


Almost the entire Yoga series seems to suffer from the problem. Lenovo stated
in some of the threads that it may be a software problem. But I doubt that.
Let's see... I'm going to try a couple of sw fixes, with very less hope.


Thank you for your time in analyzing the logs.

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