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[Eldis <1220426@xxxxxxxxxxxxxxxxxx>]

#313 This doesn't help in my case. Literally whatever I tried did't help till now. I'm testing the Win 10 Pro for the last two days, just to see if the same thing will happen, and yes, it does happen even on Win 10. Freezes occur less frequently, and are easily solvable by right then left button click on touchpad. It freezes whether Nvidia or integrated Intel graphics are in use.
It seems to me that this "elantech" touchpad is one @#&* of a touchpad, or the Nvidia card presence alone is making touchpad acts weird. Because, and I noticed that recently, even while in BIOS or live CD environment, touchpad freezes sometimes.

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https://bugs.launchpad.net/bugs/1220426

Title:
  [nvidia-prime]Freeze while using touchpad

Status in X.Org X server:
  Fix Released
Status in xorg-server package in Ubuntu:
  Fix Released
Status in xorg-server source package in Trusty:
  Triaged

Bug description:
  Using Asus N43SL laptop as an example, with nvidia-prime installed, so
  the dedicated NVIDIA graphics card (GT 540m) is in use, once in a
  while, my screen will freeze when I use my touchpad.

  WORKAROUND: Use USB mouse.

  WORKAROUND: Uninstall nvidia-prime and use integrated graphics.

  WORKAROUND: Do a VT switch via Ctrl+Alt+F1 then Ctrl+Alt+F7.

  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:
  https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1220426/+attachment/3801516/+files/Xorg.0.log

  The following upstream report has a patch that addresses this issue:
  https://bugs.freedesktop.org/show_bug.cgi?id=86288

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