This is almost certainly a duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1447751
The OP for that bug never uploaded the apport reports, and since I could not simply add them there, I had to create a new bug. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1453306 Title: Xorg freeze Status in xorg package in Ubuntu: New Bug description: Running a freshly-installed 15.04, fully-updated, on an Intel NUC5i5RYK (with an up-to-date bios). Connected to three Dell U2415 monitors, daisy-chained using the DP output. As you can see from Xorg.0.log, all three monitors are detected, and the framebuffer is set to 5760 x 1200 (3 * 1920 x 1200). This problem only manifests itself when connected to more than one monitor. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 Date: Fri May 8 19:03:32 2015 InstallationDate: Installed on 2015-05-09 (0 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1453306/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp