Public bug reported: This bug is very similar to https://bugs.launchpad.net/dell- sputnik/+bug/1752165 and has the same steps to reproduce, but it's not related to nvidia drivers. I have Lenovo Thinkpad T480s connected to a ThinkPad Thunderbolt 3 Dock. I have installed 4.15.0.46, 4.18.0.16 kernel. Both of these kernels have the issue. I followed this comment https://bugs.launchpad.net/dell-sputnik/+bug/1752165/comments/41 and installed 4.20.6 from UKUU and the issue is gone.
** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Attachment added: "dmesg" https://bugs.launchpad.net/bugs/1820811/+attachment/5247504/+files/dmesg_dock_conneted_back.txt -- 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/1820811 Title: Thunderbolt3 dock freezes X on hotplug when used with external displays Status in linux package in Ubuntu: New Bug description: This bug is very similar to https://bugs.launchpad.net/dell- sputnik/+bug/1752165 and has the same steps to reproduce, but it's not related to nvidia drivers. I have Lenovo Thinkpad T480s connected to a ThinkPad Thunderbolt 3 Dock. I have installed 4.15.0.46, 4.18.0.16 kernel. Both of these kernels have the issue. I followed this comment https://bugs.launchpad.net/dell-sputnik/+bug/1752165/comments/41 and installed 4.20.6 from UKUU and the issue is gone. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1820811/+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