[Bug 1822089] Re: Frequent (silent) USB disconnects with Dell TB16 dock

The task "linux (Ubuntu)" has expired because it has had no new comments or updates for more than three years. If this issue is still present in an Ubuntu LTS kernel still under active support, please reopen the bug and provide updated details. If this issue was reported against an Ubuntu kernel no longer under active support but the issue still exists in a currently supported Ubuntu kernel, please open a new bug against that kernel version and provide the updated details, with a reference link to the original bug. This action was performed by an automated process maintained by the Ubuntu Kernel Team. ** Tags added: kernel-autoclosed kernel-autoclosed-expired ** Changed in: linux (Ubuntu) Status: Confirmed => Expired -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/1822089 Title: Frequent (silent) USB disconnects with Dell TB16 dock Status in linux package in Ubuntu: Expired Bug description: I see something similar (but different) to bug 1766076 on a Dell 5530: - Using kernel 5.0.4 from UKUU (because current Ubuntu kernel suffers from other bugs that make this dock unusable) - BIOS 1.6.0 - TB16 dock with a single monitor on the display port, providing power, using native enumeration setting in the BIOS - Microsoft comfort curve keyboard, webcam, headset connected to dock USB ports - Wired ethernet via the dock. Keyboard stops responding frequently. There is no output in dmesg when this happens. If I later unplug the keyboard I see a disconnection message in dmesg and I can reconnect it to the same port. Sometimes it works for a day after this, other times it works for <60s. Other devices disconnect too but the pattern is different. Much more likely to see the disconnect under heavy load, such as webcam/headset getting disconnected during a conference call. --- ProblemType: Bug ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC4: shaun 2837 F.... pulseaudio /dev/snd/controlC3: shaun 2837 F.... pulseaudio /dev/snd/controlC1: shaun 2837 F.... pulseaudio /dev/snd/controlC0: shaun 2837 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 19.04 InstallationDate: Installed on 2018-12-11 (133 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) MachineType: Dell Inc. Precision 5530 NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-13-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6 RelatedPackageVersions: linux-restricted-modules-5.0.0-13-generic N/A linux-backports-modules-5.0.0-13-generic N/A linux-firmware 1.178 Tags: disco Uname: Linux 5.0.0-13-generic x86_64 UpgradeStatus: Upgraded to disco on 2019-04-24 (0 days ago) UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo wireshark _MarkForUpload: True dmi.bios.date: 02/01/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.8.1 dmi.board.name: 0FP2W2 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.8.1:bd02/01/2019:svnDellInc.:pnPrecision5530:pvr:rvnDellInc.:rn0FP2W2:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Precision dmi.product.name: Precision 5530 dmi.product.sku: 087D dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1822089/+subscriptions