[Bug 372090] Re: AlpsPS/2 ALPS GlidePoint gets stuck and is generally unresponsive.

Gursimran singh Mohar simar.i3r at gmail.com
Wed Nov 3 16:16:43 UTC 2010


The bug reporter reports of loss of events in evtest output.

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

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

** Description changed:

- Hi
+ The problem is with Elantech touchpads in HP Pavillon DV2000
+ Entertainment PC. The more elaborate description of the bug by the bug
+ reporter in comment #13 is as follows--
  
- The touchpad doesn't work on Ubuntu 9.04 (the latest)
+ However, this is exactly what happens: ONLY AFTER leaving it still for a
+ couple of seconds, there is a 200m or 400ms (milliseconds) delay between
+ you moving your finger and the pointer coming to life. If after that
+ pause you keep on moving the mouse, it goes *perfectly* well. If you
+ stop for a little bit, and try to move it again, it will be stuck again
+ -- your finger can move up to about a centimetre, or more, before the
+ pointer finally moves.
+ 
+ ----------------------------------------------------------------------------
+ 
+ 
+ Basically, when there is a "cursor is not moving" problem, events don't show up even in evtest log as the Bug reporter finds out. So it is a kernel issue.
  
  There is some information about this bug here:
- 
  http://ubuntuforums.org/showthread.php?p=7209519&posted=1#post7209519
- 
- Please note that I am JUST covering the touchpad issue here.
- 
- The problem seems to be with elantech touchpads. From my understanding
- of this bug, what's happening is that if the mouse is not moving for a
- few seconds, and then the touchpad is used, it takes a little while for
- the driver to kick in. As a result, there is a sense of "getting stuck".
- 
- Note that this problem makes the touchpad semi-unusable. Between this,
- and the Intel video card issue, the upgrade to 9.04 made my computer
- "hardly usable"...
- 
- Not sure how to debug this. It's hard enough to make sense of it...
- 
- Bye,
- 
- Merc.

-- 
AlpsPS/2 ALPS GlidePoint gets stuck and is generally unresponsive.
https://bugs.launchpad.net/bugs/372090
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