I am using Xubuntu 16.04.3 LTS, my current Linux kernel is 4.4.0-116-generic x86_64.
I also get a similar error message: Xorg.assert.failure:Xorg: ../../dix/privates.c:385: dixRegisterPrivateKey: Assertion ‘lglobal_keys[type].created‘ fails (above it is c:384) The bug is told to be a duplicate of https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1659842: But the error reporting software tells me that the bug is a duplicate of https://bugs.launchpad.net/bugs/1629678 which also does not exist, but here it is a different one than told above. BTW: Is there a way to catch the error report sent in. It is very tedious to retype what I can see when I inspect on what the error reporting software sends in. According to apt list --installed I have no package xorg-server. I only have xorg/xenial-updates,now 1:7.7+13ubuntu3.1 amd64 [installiert] xorg-docs-core/xenial,xenial,now 1:1.7.1-1ubuntu1 all [installiert] xorg-sgml-doctools/xenial,xenial,now 1:1.11-1 all [Installiert,automatisch] Is there anything which I should install to get rid of the error. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1792932 Title: Cosmic Desktop fails to boot in vbox: Xorg assert failure: Xorg: ../../../../dix/privates.c:384: dixRegisterPrivateKey: Assertion `!global_keys[type].created' failed. To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1792932/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs