Crash (or flickering) HDMI connected monitor

[crunch]

Original suggested name: systemd-logind crashed with SIGSEGV in strlen()

(I don't know much, this has been automatically prepared)

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: systemd 225-1ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
Uname: Linux 4.2.0-7-generic x86_64
ApportVersion: 2.18.1-0ubuntu1
Architecture: amd64
Date: Thu Sep 17 09:02:09 2015
ExecutablePath: /lib/systemd/systemd-logind
InstallationDate: Installed on 2015-09-03 (13 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150902)
MachineType: Dell Inc. Dell System XPS L502X
ProcCmdline: /lib/systemd/systemd-logind
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-7-generic root=UUID=e42cbe44-1629-47b9-8cf0-1ba0c8ef30ed ro persistent quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7fb52fe3e6fa <strlen+42>: movdqu (%rax),%xmm12
 PC (0x7fb52fe3e6fa) ok
 source "(%rax)" (0x561c1b000000) not located in a known VMA region (needed readable region)!
 destination "%xmm12" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: systemd
StacktraceTop:
 strlen () at ../sysdeps/x86_64/strlen.S:106
 __GI___strdup (s=0x561c1b000000 <error: Cannot access memory at address 0x561c1b000000>) at strdup.c:41
 ?? ()
 ?? ()
 ?? ()
Title: systemd-logind crashed with SIGSEGV in strlen()
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 02/20/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 0NJT03
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnDellInc.:bvrA10:bd02/20/2012:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn0NJT03:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L502X
dmi.sys.vendor: Dell Inc.

[Apport retracing service (apport)]

This crash has the same stack trace characteristics as bug #1495178. However, the latter was already fixed in an earlier package version than the one in this report. This might be a regression or because the problem is in a dependent package.

[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 #1495178, 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.