As per NVIDIA upstream, this was originating bug report for fix in https://bugs.freedesktop.org/show_bug.cgi?id=86288 -> Triaged.
** Project changed: nvidia-drivers-ubuntu => xorg-server (Ubuntu) ** Changed in: xorg-server (Ubuntu) Status: Invalid => New ** Attachment removed: "Xorg.0.log" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1220426/+attachment/3827860/+files/Xorg.0.log ** Changed in: xorg-server (Ubuntu) Importance: Undecided => Low ** Changed in: xorg-server (Ubuntu) Status: New => Triaged ** Description changed: - I'm using an Optimus laptop (Asus N43SL) - nvidia-prime is installed, so my nvidia dedicated graphics card (GT 540m) is in use. + 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. - 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). + WORKAROUND: Use USB mouse. - I can temporarily solve the issue by doing a VT switch. + 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. + 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 ** Tags added: cherry-pick -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1220426 Title: [nvidia-prime]Freeze while using touchpad To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1220426/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp