desktop-packages team mailing list archive

[Matthew Haughton <1220426@xxxxxxxxxxxxxxxxxx>]

I have created a PPA for those using Vivid. The only change is the
addition of the upstream patch.
https://launchpad.net/~snafu109/+archive/ubuntu/xorg-server

This may be useful for users on Utopic too since both use xserver-xorg
1.16, but there are no guarantees. I installed the package built for
Vivid on my machine running Utopic and didn't experience any problems,
and it fixed the freezing issue for me as expected.

I can't provide any support for this, sorry. But please comment if
you're using Vivid and you try this, whether it does or does not fix the
issue.

The debdiff I attached (see comment 247) contains the patch that was
applied to the package provided in the PPA. If you try the PPA and it
works, that validates the patch I provided.

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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:
  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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