I can confirm that this also affects 16.04. I am getting random hard freezes with external monitors, but unfortunately I am not able to get any tracebacks.
Is there an upstream bug report yet? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1570780 Title: External Monitor makes System with Ubuntu 15.10 and Intel Graphics freeze Status in linux package in Ubuntu: Confirmed Bug description: A Lenovo ThinkPad L460 with Intel Graphics freezes, if an external Monitor is connected via the docking station. Please tell me if any information to solve this issue is needed. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-35-generic 4.2.0-35.40 ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5 Uname: Linux 4.2.0-35-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: knut 1724 F.... pulseaudio CurrentDesktop: Unity Date: Fri Apr 15 11:56:45 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=3ed9dcc5-0917-4be8-a2df-82cc2f5f36ef InstallationDate: Installed on 2016-04-06 (9 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 04f2:b541 Chicony Electronics Co., Ltd Bus 001 Device 005: ID 8087:0a2b Intel Corp. Bus 001 Device 002: ID 138a:0011 Validity Sensors, Inc. VFS5011 Fingerprint Reader Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20FVS01500 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-35-generic root=UUID=b6aaa9e7-c690-41f8-a56b-dc0043e4cc20 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-35-generic N/A linux-backports-modules-4.2.0-35-generic N/A linux-firmware 1.149.3 SourcePackage: linux UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/04/2016 dmi.bios.vendor: LENOVO dmi.bios.version: R08ET35W (1.09 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FVS01500 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrR08ET35W(1.09):bd02/04/2016:svnLENOVO:pn20FVS01500:pvrThinkPadL460:rvnLENOVO:rn20FVS01500:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20FVS01500 dmi.product.version: ThinkPad L460 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1570780/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
