The crash stacktrace might be the same as in the dup report, due to no screens found, but I think it is a separate bug: the dup bugreport has no indication of 2 graphics cards being used, and the need to blacklist one module.
** This bug is no longer a duplicate of bug 1543192 Xorg crashed with SIGABRT in OsAbort() ["no screens found"] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1696231 Title: amdgpu needed blacklisting of radeon module To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1696231/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs