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[Nyarko Rexford <1220426@xxxxxxxxxxxxxxxxxx>]

Nvidia GT820M Using Nvidia 340.29 installed via Additional Drivers in Settings.
Ubuntu 14.04 LTS.

It freezes when I try opening menus or some 5-10 minutes into using the
laptop. Using an external mouse, and laptop never freezes even for a
millisecond.

The mousepad is the culprit. If I don't use the mousepad, nothing
happen, even though its not disabled.

It doesn't bother me much, as I carry my bluetooth mouse with me
anywhere I go ('Blendering' sake) but will be nice to have a solution to
it.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-prime in Ubuntu.
https://bugs.launchpad.net/bugs/1220426

Title:
  [nvidia-prime]Freeze while using touchpad

Status in “nvidia-graphics-drivers-319” package in Ubuntu:
  Triaged
Status in “nvidia-graphics-drivers-331” package in Ubuntu:
  Triaged
Status in “nvidia-graphics-drivers-343” package in Ubuntu:
  Triaged
Status in “nvidia-prime” package in Ubuntu:
  Triaged

Bug description:
  I'm using an Optimus laptop (Asus N43SL)
  nvidia-prime is installed, so my nvidia dedicated graphics card (GT 540m) is in use.

  Once in a while, my screen will freeze, only when I use my touchpad.
  This does not happen with my USB mouse.
  This does not happen either when I uninstall nvidia-prime and use my intel integrated graphics (HD3000).

  I can temporarily solve the issue by doing a VT switch.

  
  In the attached Xorg.0.log, you can see "synaptics: ETPS/2 Elantech Touchpad: touchpad found" each time I did a VT switch and regained control.

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