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?

  • Be careful next time. And do not upgrade to non-LTS versions. Such new systems as 18.10 can have many upredictable problems with drivers and apps (usually from third-parties, not from official repositories). – N0rbert Oct 21 '18 at 13:55
  • @N0rbert oh that's cold. – heynnema Oct 21 '18 at 13:56
  • You probably have a problem with your video drivers. Check to make sure that you've got the latest versions installed, and check to see if you want to run the open source driver, or the Nvidia propriatory driver. Also, look in /var/crash to see if you have any crash logs. – heynnema Oct 21 '18 at 13:57
  • @heynnema thanks for at least a useful reply. The only option I have are the open source drivers, since AMD propitiatory drivers are not yet available for 18.10 (and NVIDIA drivers won't work for an AMD card ;) ). Also, in terms of performance I have no need for any other driver than the open source ones. I have been using nothing but stock Ubuntu drivers for several releases now. Nothing of any use is available in /var/crash. I suppose because the system simple shuts off in an instant, leaving no room to log anything. – Forage Oct 21 '18 at 14:03
  • Try temporarily adding nomodeset (right next to quiet splash) to your kernel line in GRUB, and see what happens. Your video resolution may be screwed up, but I just want to see if the computer shuts down. You can do this by hitting the e at the GRUB menu. – heynnema Oct 21 '18 at 14:07

I replaced the PSU to rule out the possibility of a broken PSU just in case, hence the delay. While it was a risk, I needed an excuse you buy a quieter one anyway. And guess what @heynnema? No more crash. While I find it difficult to believe that a software update uncovers an issue with the PSU, I suppose I just have to accept that it was slowly dying. Thank you for your effort anyway.

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