Touch is too sensitive: touch/tap is interpreted as a drag/swipe

[Daniel van Vugt]

On the Nexus 7 the touch settings are too sensitive/high resolution. Whenever I touch or tap it interprets that as a drag/swipe, which makes tapping very hard. It also makes simulated right clicks nearly impossible (see bug 1071326)

[Francesco Fumanti (frafu)]

I don't know whether it is good enough for touch pads, but the motion treshold slider of the hover click affects both functions: the hover click and the simulated right click. Thus, maybe that raising the treshold solves your issue.

By the way, there is another bug, that might be interesting and that could be seen as related:
https://bugs.launchpad.net/unity/+bug/923400

[Daniel van Vugt (vanvugt)]

No the motion threshold slider doesn't help. It's also usually disabled because Hover Click is disabled (as it should be).

[Francesco Fumanti (frafu)]

@Daniel

As far as I know, the treshold is effective as soon as the simulated secondary click or the hover click is enabled. The gui does not correctly reflect what is really going on: in fact, the motion treshold is a setting that is shared by both features.

[Matt Fischer (mfisch)]

If someone else has seen this, please mark as Confirmed.

[C de-Avillez (hggdh2)]

I can confirm it -- about every time I try to close a window, I end up repositioning the window.

[Bryce Harrington (bryce)]

I've uploaded a patch that appears to solve this in portrait mode. I'd like someone who was really experiencing the problem to test that and verify whether or not it also resolves it in landscape. (It seems to work for me, but I didn't repro the original problem in landscape on my system anyway.)

[Daniel van Vugt (vanvugt)]

Bryce: Patch where? Nothing is attached and doing an update does not seem to have changed any relevant packages. The bug remains.

[Sean Feole (sfeole)]

Hey Daniel, I spoke with Bryan and the patch made it's way over to the nexus7/staging ppa.

https://launchpad.net/~ubuntu-nexus7/+archive/staging/+packages?field.name_filter=&field.status_filter=published&field.series_filter=quantal

It should apply on raring, Bryan mentioned he will push the patch to raring properly when he gets some free time.

I don't seem to be having much of a problem with Raring interpreting a click from a drag in Landscape mode. Wanted to get your input as well.

[Daniel van Vugt (vanvugt)]

Nope, I still can't generate a right click by holding the touch. Tested on raring.

What package in the PPA claims to have a fix? Seems almost all of the packages in the PPA are out of date for raring.

[Daniel van Vugt (vanvugt)]

I would have thought this command should do it, but does not:
    mousetweaks --ssc -t 30

[Robert Bruce Park (robru)]

I'm surprised there are people not experiencing this... the screen is *so* glossy and such high resolution that it is just impossible to click and hold. Every single time I get a drag, and this is in landscape too.

[Bryce Harrington (bryce)]

Variant of the patch was accepted upstream but is not yet in the xserver we include in raring, so will need to include a backport of it there.

[Launchpad Janitor (janitor)]

This bug was fixed in the package xorg-server - 2:1.13.1.901-0ubuntu2

---------------
xorg-server (2:1.13.1.901-0ubuntu2) raring; urgency=low

  * Add 237_dix_save_touchpoint_last_coords_before_transform.patch:
    Fix sensitive touch settings on Nexus 7 when input is transformed.
    (LP: #1075415, #1076567, #1076627)
 -- Bryce Harrington <email address hidden> Tue, 22 Jan 2013 13:51:16 -0800