It sounds like some part of the system has crashed. Please:
1. Apply the workaround from bug 994921.
2. Look in /var/crash for crash files and if found run:
ubuntu-bug YOURFILE.crash
and tell us the ID of the newly-created bug.
3. If step 2 failed then look at https://errors.ubuntu.com/user/ID where
ID is the contents of the /var/lib/whoopsie/whoopsie-id file on the
machine. Do you find any links to recent problems on the machine? If so
then please send them to us.
** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu)
** Changed in: xorg-server (Ubuntu)
Status: New => Incomplete
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You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1780677
Title:
X session crash after resuming from suspend
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1780677/+subscriptions
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