[Bug 625546] [NEW] touchpad clickpad button area wrong on hp tm2

[Stephen Parry]

Public bug reported:

The touchpad on the HP tm2 2050 laptop is a synaptic clickpad type. When trying to use the left right and middle 'buttons', only a very narrow strip of the pad along the bottom edge responds correctly - the boundary between the 'pointing' area and the 'buttons' appears to be approximately 700 units too low. Having looked briefly at the code, I have come to the conclusion that either:
a) The value for YMIN_NOMINAL in synaptics.c is too low for this touchpad - i.e. this touchpad does not comply with the Synaptic documentation.
b) There is a low level hardware initialization option for the touchpad controlling the boundary between the two areas that has not been set correctly.
using
option psmouse proto=imps
Forces the touchpad into ps2 mouse mode which removes this problem, but then prevents the touchpad from being further recognised as a touchpad and configured in any way, e.g. to turn off tap to click.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-24-generic 2.6.32-24.41
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-24.41-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  parrysg    2013 F.... pulseaudio
 /dev/snd/pcmC0D0p:   parrysg    2013 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xc4500000 irq 22'
   Mixer name	: 'IDT 92HD81B1X5'
   Components	: 'HDA:111d7605,103c1486,00100402'
   Controls      : 14
   Simple ctrls  : 9
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xc4420000 irq 17'
   Mixer name	: 'ATI R6xx HDMI'
   Components	: 'HDA:1002aa01,00aa0100,00100200'
   Controls      : 4
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Fri Aug 27 20:58:30 2010
HibernationDevice: RESUME=UUID=a01a3d06-10b7-4bb2-8ecd-28a75d525837
InstallationMedia: Ubuntu-Studio 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
MachineType: Hewlett-Packard HP TouchSmart tm2 Notebook PC
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic root=UUID=9d8df393-400c-4204-9af3-302aabd8b59d ro quiet splash
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
RfKill:
 3: hci0: Bluetooth
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: 05/31/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.04
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1486
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 83.15
dmi.chassis.asset.tag: CNU0253618
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.04:bd05/31/2010:svnHewlett-Packard:pnHPTouchSmarttm2NotebookPC:pvr048A200000252A20001120000:rvnHewlett-Packard:rn1486:rvrKBCVersion83.15:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP TouchSmart tm2 Notebook PC
dmi.product.version: 048A200000252A20001120000
dmi.sys.vendor: Hewlett-Packard

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid needs-upstream-testing

-- 
touchpad clickpad button area wrong on hp tm2
https://bugs.launchpad.net/bugs/625546
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