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[laurence dawney <1220426@xxxxxxxxxxxxxxxxxx>]

Hi all
Having the same (I think) issue with my dell inspiron 15 7537 running mint 17 KDE x64
In my case though it only started happening when I installed WINE. Without WINE the system works fine with every nvidia driver i have tested. It seems to be the open source opencl packages. If I have the nvidia packages installed issue does not happen but with open source opencl packages freeze comes back...
Basically I have to choose between nvidia drivers or WINE (since wine wont install without open source opencl and wont let me switch to nvidia ones....)
I have not tried using mouse instead of trackpad as I dont have a mouse to try lol so dont know if system will run fine or not with trackpad disabled.
Hope this helps! 

i5-4200u
intel hd4400 + nvidia gt750m
6gb ddr3

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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 X.Org X server:
  New
Status in “nvidia-graphics-drivers-319” package in Ubuntu:
  Invalid
Status in “nvidia-graphics-drivers-331” package in Ubuntu:
  Invalid
Status in “nvidia-graphics-drivers-343” package in Ubuntu:
  Invalid
Status in “nvidia-prime” package in Ubuntu:
  Invalid

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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