IbeeX, as per http://www.dell.com/support/home/us/en/19/product- support/product/xps-15-9550-laptop/drivers?os=biosa an update to your computer's buggy, insecure, and outdated BIOS is available (01.02.10). When you update to this following https://help.ubuntu.com/community/BIOSUpdate how does this improve the situation?
For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. Also, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible: 1) Please provide the output of the following terminal command (not perform an apport-collect): sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2) Please make a comment specifically advising on if there was an improvement or not. 3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid. Thank you for your help. ** Tags removed: kernel-bug-exists-upstream-4.6.3 ** Tags added: bios-outdated-01.02.10 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1599476 Title: Thunderbolt hotplug causes system hang Status in linux package in Ubuntu: Incomplete Bug description: Description: Ubuntu 16.04 LTS Release: 16.04 Hot-plugging Dell's WD15 Thunderbolt cause a system panic with regular kernel 4.4.0-28. Using http://kernel.ubuntu.com/~kernel- ppa/mainline/v4.6.3-yakkety/ kernel. WD15 works if it is connected to laptop during boot time. Hot-plugg causes system hang What you expected to happen: Hot-plugg WD15 thunderbolt (http://www.dell.com/support/article/us/en/04/SLN301105) all features should work (USB, sound-card, port replication...) What happened instead: Display port on WD15 works, USB replication don't work sound-card don't work and eventually system hangs. --- ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2016-05-04 (63 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) NonfreeKernelModules: nvidia_drm nvidia_modeset nvidia Package: linux (not installed) Tags: xenial Uname: Linux 4.6.3-040603-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1599476/+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
