I'm seeing something similar, but noticeably different on my Thinkpad W510 (Quadro FX 880M), Nvidia 331.38, Xubuntu 14.04 amd64. Maybe once a week, while using the synaptics touchpad in firefox, the entire screen turns a solid colour, either green or grey. Switcing virtual terminals doesn't seem to work, nor does closing the lid (doesn't suspend). After unplugging and plugging my external mouse, the red light on the mouse doesn't turn back on. So this seems like more of a hard lock. All I can do is a hard reset.
I was on a more recent nvidia driver until a while ago, from xorg- edgers, and I don't think I had the problem then, but it's hard to tell because it's so hard to reproduce. I had to go back to the default 331.38 for Trusty because of an OpenGL corruption problem in one of my programs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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/ubuntu/+source/nvidia-graphics-drivers-319/+bug/1220426/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
