Hi All, I had this issue on a Acer Aspire 5750G. Today I updated my system with the latest NVIDIA driver 343 from the xorg-edgers repository. Because Ubuntu would not let me login (black screen after entering password in lightdm) after the update and command line switching did also not work I reset compiz and unity by following the instructions here (Fix 1 to 6): http://askubuntu.com/questions/449845/problems-after-upgrading-to-14-04 -only-background-and-pointer-after-login
After I was able to use the newest driver I wasn't able to reproduce the bug after at least 2 hours of testing. Before the update the issue occured very frequently. I will report if the bug reappears. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1220426 Title: [nvidia-prime]Freeze while using touchpad Status in “nvidia-graphics-drivers-319” package in Ubuntu: Triaged Status in “nvidia-graphics-drivers-331” package in Ubuntu: Triaged Status in “nvidia-graphics-drivers-343” package in Ubuntu: Confirmed Status in “nvidia-prime” package in Ubuntu: Triaged Bug description: I'm using an Optimus laptop (Asus N43SL) nvidia-prime is installed, so my nvidia dedicated graphics card (GT 540m) is in use. 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). I can temporarily solve the issue by doing a VT switch. 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-319/+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