Hi, I am still having that issue on 14.04 Lenovo T540p with nvidia-prime activated.
I had suspected it is 'Disable while typing' option in Mouse&Touchpad configuration however disabling the option does not solve the problem. At the same time 14.04 on Dell V131 does not have any issues with touchpad at all. Switching to any virtual console and back C-A-F7 is a workaround as mentioned above however does not solve actual problem. I wonder it is still 'Disable while typing' issue because I had similar issue in a past. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1277245 Title: nvidia prime causing mouse and screen to freeze Status in xorg package in Ubuntu: Incomplete Bug description: I upgraded to Ubuntu Trusty Tahr . Currently running with updates as of 6th Feb. 64bit. After installing nvidia-prime and nvidia-331, i can see frequent mouse freezes. Once the mouse is frozen, it doesn't allow Alt+Tab functionality. Only way to get out of this is by pressing Ctrl+Alt+F1 . I can bring back by unloading and loading the psmouse module modprobe -r psmouse. lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18) 01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [GeForce 310M] (rev a2) uname -a Linux Vostro-3300 3.13.0-6-generic #23-Ubuntu SMP Thu Jan 30 09:48:03 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04 DISTRIB_CODENAME=trusty DISTRIB_DESCRIPTION="Ubuntu Trusty Tahr (development branch)" This issue does not occur while running the opensource driver. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1277245/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

