AlpsPS/2 ALPS GlidePoint become less sensitive to single touch

[Po-Hsu Lin]

The touchpad on this system was detected as a PS/2 mouse on 12.04.3
Now it's correctly detected as AlpsPS/2 ALPS GlidePoint on Trusty dailylive (3.13.0-23)

However, it become less sensitive to single touch detection
I could genetly use my finger tip to control the cursor on 12.04.3, but now I have to incerase the contact area between my finger and the touchpad, which induced more firction.

Another way to confirm this issue on Trusty with this system is:
1. Do two-finger scrolling with finger tips (with small contact area of your fingers)
2. After you can successfully scroll, remove one finger, you will find single touch does not work with a small contact area of your finger.

ubuntu@201305-13624:~$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ eGalax Inc. eGalaxTouch EXC7910-1018-03.00.01 id=9 [slave pointer (2)]
⎜ ↳ ALPS PS/2 Device id=11 [slave pointer (2)]
⎜ ↳ AlpsPS/2 ALPS GlidePoint id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
    ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
    ↳ Power Button id=6 [slave keyboard (3)]
    ↳ Power Button id=7 [slave keyboard (3)]
    ↳ HP Truevision HD id=8 [slave keyboard (3)]
    ↳ AT Translated Set 2 keyboard id=10 [slave keyboard (3)]
    ↳ HP WMI hotkeys id=13 [slave keyboard (3)]

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-23-generic 3.13.0-23.45 [modified: boot/vmlinuz-3.13.0-23-generic]
ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
Uname: Linux 3.13.0-23-generic x86_64
ApportVersion: 2.14.1-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 1653 F.... pulseaudio
 /dev/snd/controlC1: ubuntu 1653 F.... pulseaudio
CRDA:
 country TW:
  (2402 - 2472 @ 40), (3, 27)
  (5270 - 5330 @ 40), (3, 17), DFS
  (5735 - 5815 @ 40), (3, 30)
CurrentDesktop: Unity
Date: Wed Apr 9 18:16:29 2014
HibernationDevice: RESUME=UUID=7c06a53c-59c3-4f3e-8fc4-8fc56819ec91
InstallationDate: Installed on 2014-04-07 (1 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406)
MachineType: Hewlett-Packard HP Pavilion TS 14 Notebook PC
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-23-generic.efi.signed root=UUID=e9552b0e-0694-4ff5-92a8-a7830ab61feb ro quiet splash nomodeset vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-23-generic N/A
 linux-backports-modules-3.13.0-23-generic N/A
 linux-firmware 1.127
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/27/2013
dmi.bios.vendor: Insyde
dmi.bios.version: B.09
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 2162
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 29.0A
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrB.09:bd05/27/2013:svnHewlett-Packard:pnHPPavilionTS14NotebookPC:pvr089C100000000010000630100:rvnHewlett-Packard:rn2162:rvr29.0A:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion TS 14 Notebook PC
dmi.product.version: 089C100000000010000630100
dmi.sys.vendor: Hewlett-Packard

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.14 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14-trusty/

[Po-Hsu Lin (cypressyew)]

Verified with the latest kernel:
3.14.0-031400-generic #201403310035

This issue still exist

[Joseph Salisbury (jsalisbury)]

Thank you for taking the time to file a bug report on this issue.

However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.

  With the recent release of this Ubuntu release, would like to confirm if this bug is still present. Please test again with the newer kernel and indicate in the bug if this issue still exists or not.

You can update to the latest development kernel by simply running the following commands in a terminal window:

    sudo apt-get update
    sudo apt-get dist-upgrade

If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released.

If you want this bot to quit automatically requesting kernel tests, add a tag named: bot-stop-nagging.

 Thank you for your help, we really do appreciate it.

[Po-Hsu Lin (cypressyew)]

Verified with Trusty (3.13.0-29), this issue still exist
Also affects 201305-13643