Bug#820013: general: Touchpad not working on Lenovo IdeaPad Yoga 13 after updating from 8.3 to 8.4

[Juho <enyone@phnet.fi>]

Update: Problem still exists. However I managed to get touch-pad back to 
work after putting my Yoga laptop to suspend mode and back on. After the 
power is restored the touch-pad works. After full power cycle (power off 
and back on) it is again in non-working state.

I have also reproduced this several times. Suspend mode is applied with 
System power settings -> Ac power -> Laptop lid closed -> Suspend and 
then closing the laptop lid. Wake-up from suspend is managed by opening 
the laptop lid. After wake-up the touch-pad is working.

This may be either something related to system boot-up after full power 
cycle or then laptop lid sensor signal handling issue.

-- Desktop environment:
MATE Desktop Environment 1.8.1