Linux Mint 18.1 Serena
Linux Kernel 4.4.0-79-generic
AMDGPU-PRO 16.40-348864
After libepoxy update from 1.3.1-1 to 1.3.1-1ubuntu0.16.04.1 I got a black screen on system boot. However, in contrast to the original submission, I was able to boot into recovery mode and downgrade libepoxy with
sudo apt-get install libepoxy0=libepoxy1.3.1-1
I can confirm this.
Linux Mint 18.1 Serena
Linux Kernel 4.4.0-79-generic
AMDGPU-PRO 16.40-348864
After libepoxy update from 1.3.1-1 to 1.3.1-1ubuntu0. 16.04.1 I got a black screen on system boot. However, in contrast to the original submission, I was able to boot into recovery mode and downgrade libepoxy with libepoxy1. 3.1-1
sudo apt-get install libepoxy0=
This solved the problem for me.