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. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1220426/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
