On my Dell Inspiron 15R laptop, lately I've noticed that sometimes my touchpad stops responding and I have to restart to fix this. All I can do is press the power button and press Enter which shuts down, but if I press Tab while the shut down dialog is open, I can't escape out of it and pressing the power button again resets the countdown to auto shut down. Then I have to hold down the power button to force it off. I'm still able to open the menu using the Windows key and close Firefox using Ctrl+Q.
This happened to me again yesterday, I had to force shut down with the power button. Maybe it's just my old laptop malfunctioning. Sometimes the slightest movement can cause it to die suddenly!
This just happened to me now and I fixed it somehow by moving my right and left index fingers at the same time randomly around the touchpad ! Maybe the pointer freezes because I touched the touchpad with two fingers simultaneously in a specific way which caused it to freeze until that's done again to unfreeze it.
You may wish to check if your machine is using Nvidia graphics. Type inxi -G into a terminal window.
If yes, you would want to install nvidia-glx-driver-current if your running the current kernel, or nvidia-glx-driver if your running the lts kernel. You can check your running kernel by typing uname -r into a terminal window.
From the comments here, this happened to me last on 31st October 2017 but I remember it happened to me recently in the last month where I was sitting in a study area and wondering if I should ask to borrow someone's mouse to move the pointer. In the end I just forced shut down.
I'll close this issue, but if it happens again, I'll leave a comment here.
If it happens to anyone else, please leave a comment or reopen this task.
This happened to me again a few minutes ago. I was scrolling on Facebook and the pointer froze. Right and left clicking still worked, but could not move using the touchpad. I was not plugged into the power outlet, which may have something to do with it.