Gergely Kalmar, thank you for reporting this and helping make Ubuntu better.
Could you please run the following command once from a terminal by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information: apport-collect -p xorg 1548717 When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs. ** Package changed: xserver-xorg-video-intel (Ubuntu) => xorg (Ubuntu) ** Changed in: xorg (Ubuntu) Importance: Undecided => Low ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- 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/1548717 Title: Lenovo E460 kernel panic with onelink pro dock and external screen Status in xorg package in Ubuntu: Incomplete Bug description: I have a Lenovo ThinkPad E460 and a Lenovo ThinkPad OneLink Pro Dock. Everything works fine, except for the external screen ports on the dock. When I plug in an external screen to the DVI or DisplayPort, the system freezes. I've attached a screenshot of the errors I get. The setup was working fine in Windows 10. The HDMI port on the laptop works fine. Some information on the system: Manufacturer: LENOVO Product Name: 20ETCTO1WW Product Version: ThinkPad E460 Firmware Version: R00ET37W (1.12) output of: uname -u Linux titan 4.4.0-6-generic #21-Ubuntu SMP Tue Feb 16 20:32:27 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux output of: lspci 00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 08) 00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 07) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI (rev 21) 00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21) 00:1c.0 PCI bridge: Intel Corporation Device 9d12 (rev f1) 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1) 00:1d.0 PCI bridge: Intel Corporation Device 9d18 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection I219-V (rev 21) 01:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a) 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01) 03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265] (rev 81) I am currently using a daily build of Ubuntu 16.04 but the error was also present in Ubuntu 14.04 and Ubuntu 15.10. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1548717/+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
