@LocutusOfBorg, I tried adding your repository again today and received this error with sudo apt-get update:
Err:33 https://launchpad.net/~costamagnagianfranco/+archive/ubuntu/locutusofborg-ppa/+packages xenial/main amd64 Packages 404 Not Found I don't know if this occurred before, but in any case I downloaded libepoxy-dev, libepoxy-dev:i386, libepoxy0, and libepoxy0:i386 from your repository and manually installed them with gdebi. I then placed the packages on hold and did a sudo apt-get update and sudo apt-get dist- upgrade. After this the system booted without hanging, so I played No Man's Sky under wine for a few moments, as this is one of the things that requires OpenGL 4.5 compatibility mode. The game played fine, but after exiting it and Steam I tried opening Chrome and the system froze and the screen turned black. However I rebooted the system and tried the same thing again a few times and it didn't crash. So I suspect there's some type of memory corruption that's difficult to replicate, but can't know for sure. In any case whatever you did solved the hang at boot problem, so you're correct about whatever you thought the problem was. Thank you for your work, and I appreciate you looking into a problem only a few of us have. As to where to go from here, I don't know. The crux of the problem is that AMD abandoned their fglrx drivers before a replacement was ready, and threw those of us who had just bought $300+ graphics cards off the cliff. I'd like to abandon them now and get an Nvidia GPU, but at this moment there's a problem procuring medium to high end GPUs, of any brand, because of digital currency mining. So if it's not a lot of effort and you know what the problem is and can fix it permanently, that would be awesome. On the other hand I know development resources are limited and I won't blame you if you decide it's not worth the effort because of the very few people it affects, and the fact that it's AMD's fault not Ubuntu's. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libepoxy in Ubuntu. https://bugs.launchpad.net/bugs/1698233 Title: New libepoxy0 causes hang at boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libepoxy/+bug/1698233/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp