The bug itself is fixed in the 4.11.0-041100rc5-generic kernel. But I encounter regular freezes with this version of the kernel, and I have ACPI related error messages.
Here are the ACPI messages from the dmesg : [ 6.090510] ACPI Warning: \_SB.IETM._ART: Return Package type mismatch at index 0 - found Integer, expected Reference (20170119/nspredef-297) [ 6.090530] ACPI: Invalid package element [0]: got number, expecting [R] [ 6.090531] _ART package 0 is invalid, ignored [ 6.090563] ACPI Warning: \_SB.IETM._TRT: Return Package has no elements (empty) (20170119/nsprepkg-130) ** Tags added: kernel-fixed-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1677575 Title: Thunderbolt hotplug causes system hang Status in linux package in Ubuntu: Confirmed Bug description: I have a problem similar to the bug #1599476, my system freezes when I unplug my thunderbolt port if it is connected during startup. What I have tested so far : * If the thunderbolt is plugged at startup and I unplug it -> System freeze * If the thunderbolt is not plugged at startup, I can plug it and unplug it fine. What I expect to happen : Being able to unplug my thunderbolt without the system freezing. I updated my BIOS and the firmware of the dock : 13:47 troche@serenity ~ % sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 1.2.19 12/22/2016 This was working fine in Ubuntu 16.04, and it is not working since my update to Ubuntu 16.10. 13:47 troche@serenity ~ % lsb_release -rd Description: Ubuntu 16.10 Release: 16.10 My computer is a Dell Precision 5510 laptop with a dock WD15 Thunderbolt. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-41-generic 4.8.0-41.44 ProcVersionSignature: Ubuntu 4.8.0-41.44-generic 4.8.17 Uname: Linux 4.8.0-41-generic x86_64 ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: troche 2945 F...m pulseaudio /dev/snd/controlC0: troche 2945 F.... pulseaudio CurrentDesktop: Unity Date: Thu Mar 30 13:41:26 2017 HibernationDevice: RESUME=UUID=65e0fb0a-8046-4428-bb89-53d36638d70a InstallationDate: Installed on 2016-08-24 (218 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Dell Inc. Precision 5510 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-41-generic root=UUID=7510dd66-3e56-446f-b39c-71724a228d07 ro quiet splash RelatedPackageVersions: linux-restricted-modules-4.8.0-41-generic N/A linux-backports-modules-4.8.0-41-generic N/A linux-firmware 1.161.1 SourcePackage: linux UpgradeStatus: Upgraded to yakkety on 2017-03-27 (3 days ago) dmi.bios.date: 12/22/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.19 dmi.board.name: 0N8J4R dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.19:bd12/22/2016:svnDellInc.:pnPrecision5510:pvr:rvnDellInc.:rn0N8J4R:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Precision 5510 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1677575/+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