Xorg crashed with SIGABRT

[oldrocker99]

This happened at bootup as soon as I logged into the MATE desktop. No X errors were seen.

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: xserver-xorg-core 2:1.17.2-1ubuntu9
ProcVersionSignature: Ubuntu 4.2.0-15.18-generic 4.2.3
Uname: Linux 4.2.0-15-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.19.1-0ubuntu2
Architecture: amd64
Date: Sat Oct 10 12:22:37 2015
ExecutablePath: /usr/bin/Xorg
InstallationDate: Installed on 2015-10-09 (1 days ago)
InstallationMedia: Ubuntu-MATE 15.10 "Wily Werewolf" - Alpha amd64 (20150924)
ProcCmdline: /usr/bin/X :1 -auth /var/run/sddm/:1 -nolisten tcp -background none -noreset vt7
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
 ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
 ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
 ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
 ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
Title: Xorg crashed with SIGABRT
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1494424, so 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. Please continue to report any other bugs you may find.