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[Bug 1220426] Re: [nvidia-prime]Freeze while using touchpad

 

Try building with dpkg-buildpackage -b.

That command appears to complete with no errors.   Afterwards I have the
following .deb files in the parent directory:

xorg-server-source-lts-utopic_1.16.0-1ubuntu1.2~trusty2_all.deb
xserver-xephyr-lts-utopic_1.16.0-1ubuntu1.2~trusty2_amd64.deb
xserver-xorg-core-lts-utopic_1.16.0-1ubuntu1.2~trusty2_amd64.deb
xserver-xorg-core-lts-utopic-dbg_1.16.0-1ubuntu1.2~trusty2_amd64.deb
xserver-xorg-dev-lts-utopic_1.16.0-1ubuntu1.2~trusty2_amd64.deb
xwayland-lts-utopic_1.16.0-1ubuntu1.2~trusty2_amd64.deb

The instructions from Patrick Mertens in posting #212 said

There should now be 11 "*.deb" files in that folder (run ll *.deb to check).
As nielsmayer pointed out we need to install only two: xserver-common_1.15.1 and xserver-xorg-core_1.15.1 (The exakt file names vary depending on your distro! Just type the first few letters and hit the TAB key to get them typing this command):
~/Downloads$ sudo dpkg -i ./xserver-common_1.15.1-0ubuntu2.3_all.deb ./xserver-xorg-core_1.15.1-0ubuntu2.3_amd64.deb

There is an xorg-core deb, but no xserver-common deb.  Should I install
the xephyr deb instead?   The xwayland one?

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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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