My trackpad is misbehaving, it randomly interprets clicks as swipes and the cursor jumps around or lags on the screen.
How can I find out if this is a hardware or software issue?
I'm on a MacBook Pro 5,3 with OS X 10.11.6. Using a bluetooth mouse (Logitech MX Master) I see none of these issues.
- Restart - solves the problem for a few minutes, but symptoms return
- Different user - same as restart
- Apple Hardware Test - pressed D during startup, but the hardware test did not start and the machine started in normal mode.