Ever since I updated from 18.04 to 18.10, I'm no longer able to play a game like Heroes of Newerth. As soon as the game start after the picking phase, my system completely shuts off/reboots. Testing with a game like Warsow gives me the same result.
All was fine on 18.04 with the default open source drivers in combination with my AMD RX480 card.
Due to it being a complete crash, I don't quite know where to report what since I have no error nor log messages to go on.
What could be the cause of the problem? What can I do to gather some more info? Where would be the appropriate place to report it?