Thinkpad L480 touchpad issues

Hello,

I've observed the following touchpad issues on my Thinkpad L480.

- It sometimes becomes unusable after closing the lid for some time and
  re-opening it. I haven't touched any suspend/resume settings.
- Double-clicking doesn't work. What's interesting however is that, I
  noticed this issue with an old laptop as well, but I remember it
  working on 12.2, so perhaps some regression happened between 12.2 and
  the 14.2-RELEASE (which I'm running now).

If anyone involved in this area can help that'd be great. Let me know if
you need any specific debugging information. Thank you.

Christos