computer freeze connecting external monitor

[Arlen]

Computer freezes and mouse moves back and forth while connecting external monitor.

Similar bug report on Linux Mint 17 (also Ubuntu 14.04 based).
https://bugs.launchpad.net/linuxmint/+bug/1332895

The bug affects Ubuntu Desktop 14.04 also
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1403228

Known signs are: Samsung Ultrabook series 5, smaller than average monitor resolution, Ubuntu 14.04 based.

Some logs show system is changing resolution constantly back and forth (maybe 5 times a second).

Monitor is BenQ T905 (1280x1024), computer is Samsung Ultrabook series 5 (1366x768)

ProblemType: Bug
DistroRelease: elementary OS 0.3
Package: elementary-desktop 1.351+395~ubuntu0.3.1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CrashDB: elementary_meta
CurrentDesktop: Pantheon
Date: Mon Dec 15 07:56:46 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-12-15 (0 days ago)
InstallationMedia: elementary OS 0.3 "Freya" - Daily amd64 (20140810)
SourcePackage: elementary-meta
SuspiciousXErrors:

ThirdParty: True
UpgradeStatus: No upgrade log present (probably fresh install)

[Paul White (paulw2u)]

We are sorry that we do not always have the capacity to review all reported bugs in a timely manner.

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue using a maintained version of Ubuntu please let us know otherwise this report can be left to expire in approximately 60 days time.

Paul White
[Ubuntu Bug Squad]

[Launchpad Janitor (janitor)]

[Expired for Ubuntu because there has been no activity for 60 days.]