Touchscreen oddities

Hey ya'll. I'm running Gentoo on a surface pro 4 with the custom kernel patches and such.

I have run into an odd issue that I've had on most other distros I've tried (really just Debian) - When I close my laptop's lid and then re-open the laptop lid, the touchscreen & pen stop working. Any thoughts on why this may be?

I'm running iptsd and libinput. It works beautifully outside of this. I tried restarting iptsd. Thanks if anybody has any input!