[Bug 550625] Re: Alps touchpad is recognized but neither gsynaptics nor mouse preferences work

[Chase Douglas]

Unfortunately, it appears that this touchpad uses a new protocol between
the device and the driver. This means that we have to figure out the
protocol before we can unlock the full functionality of the touchpad.
One way to do this is to watch what the Windows driver does when it
talks to the hardware, but this is easier said than done.

In the meantime, the device ID for this touchpad has been backed out of
the upstream linux-input tree at my request, and I will shortly ask for
it to be backed out of the Ubuntu kernel. Though the touchpad won't be
seen in gsynaptics or other synaptics compatible software, scrolling
functionality will be restored. When the proper protocol is determined
for this touchpad we can look into pulling it into Ubuntu again.

I'm sorry this can't be completely fixed at this time.

Thanks for your understanding.

** Description changed:

+ SRU Justification:
+ 
+ Impact: The end result of the commit is loss of scroll support, with no
+ extra functionality gained.
+ 
+ How addressed: By reverting the commit, the previously enabled scroll
+ support is reestablished through the ImPS/2 extension.
+ 
+ Reproduction: Run current Ubuntu kernel on affected hardware. Scroll
+ functionality present in previous Ubuntu releases is now missing.
+ 
+ Regression Potential: Since this is a revert of a one-line device id,
+ the regression potential is minimal. The device should fall back to
+ ImPS/2 protocol without issue.
+ 
+ =====
+ 
  Binary package hint: xserver-xorg-input-synaptics
  
  I have Ubuntu 9.10 and an Alps touchpad (E7: 73 02 64). Chase fixed the
  kernel so that it was recognized  and, indeed, the touchpad shows up in
  both gsynaptics and system>preferences>mouse, but when I actually try to
  adjust the settings nothing changes. My goal is to disable the tap-to-
  click feature or disable the touchpad when typing. Chase suggests it may
  be something related to the driver and to open another bug.
  
  ProblemType: Bug
  Architecture: i386
  Date: Sun Mar 28 22:02:25 2010
  DistroRelease: Ubuntu 9.10
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  MachineType: Hewlett-Packard HP Pavilion dm3 Notebook PC
  Package: xserver-xorg-input-synaptics 1.1.2-1ubuntu7
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-21-generic root=UUID=f1e2e19e-a0f8-407d-9533-c5ba95a8be50 ro quiet splash
  ProcEnviron:
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-21.58~alps4-generic
  RelatedPackageVersions:
-  xserver-xorg 1:7.4+3ubuntu10
-  libgl1-mesa-glx 7.6.0-1ubuntu4
-  libdrm2 2.4.14-1ubuntu1
-  xserver-xorg-video-intel 2:2.9.0-1ubuntu2.1
-  xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
+  xserver-xorg 1:7.4+3ubuntu10
+  libgl1-mesa-glx 7.6.0-1ubuntu4
+  libdrm2 2.4.14-1ubuntu1
+  xserver-xorg-video-intel 2:2.9.0-1ubuntu2.1
+  xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
  SourcePackage: xserver-xorg-input-synaptics
  Uname: Linux 2.6.31-21-generic i686
  XorgConf:
-  Section "InputDevice"
-  	Identifier "Macintosh mouse button emulation"
-  	Driver "synaptics"
-  	Option "SHMConfig" "true"
-  EndSection
+  Section "InputDevice"
+   Identifier "Macintosh mouse button emulation"
+   Driver "synaptics"
+   Option "SHMConfig" "true"
+  EndSection
  dmi.bios.date: 12/04/2009
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: F.22
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 3656
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 44.1D
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnInsydeCorp.:bvrF.22:bd12/04/2009:svnHewlett-Packard:pnHPPaviliondm3NotebookPC:pvr0486110000241F00110320000:rvnHewlett-Packard:rn3656:rvr44.1D:cvnHewlett-Packard:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dm3 Notebook PC
  dmi.product.version: 0486110000241F00110320000
  dmi.sys.vendor: Hewlett-Packard
  fglrx: Not loaded
  system:
-  distro:             Ubuntu
-  architecture:       i686kernel:             2.6.31-21-generic
+  distro:             Ubuntu
+  architecture:       i686kernel:             2.6.31-21-generic

** Changed in: xserver-xorg-input-synaptics (Ubuntu)
       Status: New => Invalid

** Package changed: xserver-xorg-input-synaptics (Ubuntu) => linux
(Ubuntu)

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Chase Douglas (chasedouglas)

** Changed in: linux (Ubuntu)
       Status: Invalid => In Progress

** Changed in: linux (Ubuntu)
    Milestone: None => lucid-updates

-- 
Alps touchpad is recognized but neither gsynaptics nor mouse preferences work
https://bugs.launchpad.net/bugs/550625
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