I'm having this issue since the first boot of my new Dell Inspiron 5558 (with Nvidia GeForce 920M), and that's about 15 days already. Tried like millions of solutions including ones I found here, but nothing worked for me. Reinstalled Ubuntu for 20 times I think, from 14.04 to 15.10, tried UEFI and legacy boot (as someone somewhere suggested this as solution too), modified that one .conf file in modprobe.d as someone else suggested, added xorg-edgers repository and pulled the packages from it... I can't remember anymore what else I tried, but nothing helps.
Touchpad (pointer) freezes randomly without recognizable pattern. Sometimes right after the boot, sometimes 5 minutes after, sometimes one hour after, but eventually it will freeze, sonner or later. Sometimes it does not only freeze, it starts to act weird, opening right click menus while still frozen, like randomly generating all kinds of touchpad inputs. Sometimes it fixes itself after closing/opening laptop screen (going to suspend and waking), but this is not working every time also. This is driving me insane. I love Ubuntu for years and I love my new DELL Inspiron, but having the laptop with defective touchpad defies its very purpose. -- 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: Fix Released Status in xorg-server source package in Trusty: 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
