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[Bug 1328313] Re: Alps Touchpad acts erratically when multi-touch is vertical, not horizontal

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Mark Smith <mrksmith@xxxxxxxxxx>
Date: Tue, 10 Jun 2014 18:28:04 -0000
Reply-to: Bug 1328313 <1328313@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

That what you needed? I got the following errors on the console, so I'm
not sure whether you got the data you were looking for.

mrksmith@mrksmith-laptop:~$ apport-collect 1328313
The authorization page:
(https://bla bla bla)
should be opening in your browser. Use your browser to authorize
this program to access Launchpad on your behalf.
Press any key to continue or wait (5) seconds...
Waiting to hear from Launchpad about your decision...
No packages found matching linux.
ERROR: hook /usr/share/apport/general-hooks/cloud_archive.py crashed:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/apport/report.py", line 719, in add_hooks_info
symb['add_info'](self, ui)
File "/usr/share/apport/general-hooks/cloud_archive.py", line 18, in add_info
if '~cloud' in packaging.get_version(package) and \
File "/usr/lib/python2.7/dist-packages/apport/packaging_impl.py", line 95, in get_version
raise ValueError('package does not exist')
ValueError: package does not exist
mrksmith@mrksmith-laptop:~$

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https://bugs.launchpad.net/bugs/1328313

Title:
Alps Touchpad acts erratically when multi-touch is vertical, not
horizontal

Status in “linux” package in Ubuntu:
Incomplete

Bug description:
I'm on a Dell Latitude E7240 running 12.04 LTS and my touch pad acts erratically. It happens because my middle and ring fingers accidentally touch the top edge of the pad while my pointer finger is moving the cursor. I can reproduce this on purpose by running "xinput --test [device number]" and watching the events while I do the following:
- Touch the pad near the middle or bottom. The cursor moves slightly as my finger wiggles around.
- Without removing the first finger, touch the pad again with a second finger above the first finger. The cursor shoots up to a[1]=0 (which is the y position).
- Without removing the first finger, remove the second (top) finger. The cursor shoots back down to a[1]=<some large number> Sometimes it takes it all the way to the bottom of the screen, sometimes it goes back to where it was, or somewhere else. I haven't been able to figure out how it decides what to go back to.

With this, while I touching with my pointer finger and my middle or
ring finger accidentally touch the pad at the top, the cursor shoots
where I don't want it. Then when my middle/ring finger leaves the pad
(usually because I started cursing (get it?) at my cursor), it shoots
back down again somewhere completely arbitrary.

Similarly:
- Touch the bad near the top.
- Without removing the top finger, touch somewhere near the bottom. The cursor doesn't (yet) move.
- Lift the top finger. The cursor shoots to the bottom.
- Put down the top finger again, without lifting the bottom. The cursor shoots back up again.

You can make the cursor shoot up and down just by keeping your bottom
finger down and tapping the top finger. The cursor follows the top
finger no matter what you do.

Interestingly, this does NOT happen from side-to-side. Two touches
side-by-side trigger the multi-touch gestures and don't move the
cursor.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.13.0-29-generic 3.13.0-29.53~precise1
ProcVersionSignature: Ubuntu 3.13.0-29.53~precise1-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Mon Jun 9 16:59:49 2014
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
SHELL=/bin/bash
SourcePackage: linux-lts-trusty
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-29-generic.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 1: PCH [HDA Intel PCH], device 0: ALC292 Analog [ALC292 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: mrksmith 2576 F.... pulseaudio
/dev/snd/controlC0: mrksmith 2576 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'HDMI'/'HDA Intel HDMI at 0xf7e34000 irq 64'
Mixer name : 'Intel Haswell HDMI'
Components : 'HDA:80862807,80860101,00100000'
Controls : 21
Simple ctrls : 3
Card1.Amixer.info:
Card hw:1 'PCH'/'HDA Intel PCH at 0xf7e30000 irq 65'
Mixer name : 'Realtek ALC292'
Components : 'HDA:10ec0292,102805ca,00100001'
Controls : 28
Simple ctrls : 13
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=303359b5-1c66-468d-935e-a6d9bc56e4e9
MachineType: Dell Inc. Latitude E7240
MarkForUpload: True
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-29-generic root=/dev/mapper/vg0-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.13.0-29.53~precise1-generic 3.13.11.2
RelatedPackageVersions:
linux-restricted-modules-3.13.0-29-generic N/A
linux-backports-modules-3.13.0-29-generic N/A
linux-firmware 1.79.14
Tags: precise running-unity
Uname: Linux 3.13.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout lpadmin plugdev sambashare sudo
dmi.bios.date: 02/18/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.asset.tag: 1201037379
dmi.board.name: 0531FD
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.asset.tag: 1201037379
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd02/18/2014:svnDellInc.:pnLatitudeE7240:pvr01:rvnDellInc.:rn0531FD:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E7240
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

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