I have a Latitude E6410 with one odd issue- the cursor moves by itself, normally to the lower left hand corner of the screen, but not always. It doesn't seem to matter whether I'm using the touchpad or external mouse. It's pretty much always done this, but seems to be a little worse as of late. I just tried updating the latest version of the Alps software and the issue has persisted. Any ideas?
No luck here fixing it so far. I watched the video and found that mine does the same- if I put pressure on the case to the left of the touchpad, the cursor starts wandering again. I have also tried lots of settings changes but can't find anything to get rid of it.
I had the exact same problem: randomly moving cursor from/to lower left to upper right, somewhat influenced by putting pressure on the case around the touchpad. It turns out it's not because of the touchpad, but the trackpoint (the little stick on the center of the keyboard). These are two different mouse devices that controls the pointer at the same time. I just disabled the trackpoint and the cursor stopped moving around. The touchpad still works, but not trackpoint. I don't use it anyway.
On my OS (Linux), I disabled the trackpoint using the command
xinput set-prop "AlpsPS/2 ALPS DualPoint Stick" "Device Enabled" 0
(see this answer). For other OSes, you want to google how to disable a particular mouse device.
I solved this by placing a piece of clear tape over the track stick connector on the keyboard. The stick connector is the brown one with four black connection points on it. After disabling the track stick and covering the connection points with tape the cursor does not seem to move anymore. Photos are attached.