As requested I installed the newest mainline kernel (uname -a reports: Linux knut-ThinkPad-L460 4.6.0-040600rc4-generic #201604172330 SMP Mon Apr 18 03:32:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux). For the first time I could use two displays in extended desktop mode but after some moments the system froze again, now I'm using only the external monitor. Therefore I would say, there is little progress. During installation of the rc4-kernel there were some issues, however installation finished with "erledigt", which is german and translates to "done". I copied the output and attach it here. In the next comment I'll add the log that should be consulted. Then I tag this bug as requested with 'kernel-bug-exists-upstream' and 'Confirmed'. As the notebook is new this was a fresh installation of Ubuntu 15.10 I cannot say, whether there are prior kernel versions without this bug. Thanks for caring for my issue and tell me please if there are any additional information needed to address this.
** Attachment added: "output.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1570780/+attachment/4639431/+files/output.log -- 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
