Xorg crashed after login

[Gennady]

After login I see crash report.

Description: Ubuntu 18.04.2 LTS
Release: 18.04

xorg:
  Installed: 1:7.7+19ubuntu7.1
  Candidate: 1:7.7+19ubuntu7.1
  Version table:
 *** 1:7.7+19ubuntu7.1 500
        500 http://kg.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:7.7+19ubuntu7 500
        500 http://kg.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

nvidia-driver-418:
  Installed: (none)
  Candidate: 418.56-0ubuntu0~gpu18.04.1
  Version table:
     418.56-0ubuntu0~gpu18.04.1 500
        500 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu bionic/main amd64 Packages

https://errors.ubuntu.com/oops/546067c2-5c1b-11e9-a404-fa163e102db1

/usr/lib/xorg/Xorg:Xorg: ../../dix/privates.c:385: dixRegisterPrivateKey: Assertion `!global_keys[type].created' failed

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1792932, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.