Brand new SSD. Fresh install of macOS Sierra with the latest update 10.12.1.
sudo trimforce enable it enables successfully and reboots the machine. After the reboot during the first 20-30 seconds built-in keyboard and trackpad stop responding and they never recover back. The only fix is to disable trim:
sudo trimforce disable.
When trim is disabled everything works absolutely fine - no issues with keyboard nor trackpad.
What could cause such behaviour?