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[Bug 487347] Re: Samsung NC10 touchpad generates hundreds of interrupts per second

 

** Description changed:

  Binary package hint: xserver-xorg-input-synaptics
  
  Ubuntu 9.10 fresh install (generally base configuration with no external hardware connected)
  xserver-xorg-input-synaptics 1.1.2-1ubuntu7
  Samsung NC10 11CA BIOS
  
  When performing testing to reduce battery drain on my NC10 netbook, I've
  been tracking the CPU wake-ups.  I was using gnome-power-statistics to
  track the CPU.
  
  When the computer was idle, there would be around 40 wake-ups per
  second.  While using the trackpad, there would be ~475 interrupts for
  the trackpad as well as ~150 additional interrupts per second generally
  increased (totalling around ~667/second).  I even had one instance (not
  recorded unfortunately, where it was in the thousands).  I compared this
  against other laptops running fresh 9.10 installation as well as
  desktops running it.  Even using a USB mouse, they only generate tens or
  less of interrupts per second, not hundreds.
  
  Since other laptops don't show this problem but the NC10 does, I'm
  guessing it's a cofiguration/setup issue.
  
  I was looking at Bug #194489, and it seems to be perhaps related, but
  somewhat different.  If I'm not using the touchpad, it doesn't generate
  spurious interrupts, but when I do use it, it seems to be way too high.
- 
- https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-
- synaptics/+bug/194489

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Samsung NC10 touchpad generates hundreds of interrupts per second
https://bugs.launchpad.net/bugs/487347
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