Nikhil (nmahale) -- thanks for your patch. In https://bugs.launchpad.net/ubuntu/+source/nvidia- prime/+bug/1220426/comments/201 I believed it worked, now I'm certain it fixes the freezing problem.
However, like 'sgustafso', I too noticed the eventual disappearance two- finger scrolling. I'm now testing edge scrolling setting from "Unity Tweak Tool", which perhaps generates fewer events (?). Also, curious as to the role of "smartscroll", which is on by default: "smartscroll:Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled. (bool)" root@gnuvelle:/sys/module/psmouse/parameters# ls proto rate resetafter resolution resync_time smartscroll root@gnuvelle:/sys/module/psmouse/parameters# cat * auto 100 5 200 0 Y -- 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 X.Org X server: Confirmed Status in “nvidia-graphics-drivers-319” package in Ubuntu: Invalid Status in “nvidia-graphics-drivers-331” package in Ubuntu: Invalid Status in “nvidia-graphics-drivers-343” package in Ubuntu: Invalid Status in “nvidia-prime” package in Ubuntu: Invalid 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/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