My Lenovo Thunderbolt Dock Gen2 randomly drops the USB controller, resulting in no USB at all.
It sometimes happens after a few seconds of being plugged in to the notebook, but sometimes it works for hours.
The display connected to the dock stays active and working.
I tried to blacklist the driver (r8152) for the usb3-ethernet controller, as suggested in a few forums, but it does not solve the issue.
dmesg is full of the following messages:
[ 1001.028336] xhci_hcd 0000:08:00.0: WARN Event TRB for slot 11 ep 1 with no TDs queued?
[ 1001.029304] xhci_hcd 0000:08:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 1 comp_code 1
[ 1001.029324] xhci_hcd 0000:08:00.0: Looking for event-dma 000000087785b460 trb-start 000000087785b540 trb-end 000000087785b540 seg-start 000000087785b000 seg-end 000000087785bff0
I'm running ubuntu 20.10, but it also happened under 20.04. Everything is up to date as of writing this bugreport.
The dock is running the latest firmware, but the issue was present with earlier version of the firmware too.
I also tried both thunderbolt ports on the notebook (MSI Prestige 15), the issue happens on both.
The dock works flawlessly under windows 10.
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ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version k5.8.0-48-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu50.5
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: viktor 1021 F.... pulseaudio
/dev/snd/controlC0: viktor 1021 F.... pulseaudio
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.10
InstallationDate: Installed on 2020-06-05 (306 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Micro-Star International Co., Ltd. Prestige 15 A10SC
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-48-generic root=UUID=d852534f-8d9d-4f1f-90c8-c7dadb006539 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.8.0-48.54-generic 5.8.18
RelatedPackageVersions:
linux-restricted-modules-5.8.0-48-generic N/A
linux-backports-modules-5.8.0-48-generic N/A
linux-firmware 1.190.3
Tags: groovy
Uname: Linux 5.8.0-48-generic x86_64
UpgradeStatus: Upgraded to groovy on 2021-03-11 (26 days ago)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 11/18/2019
dmi.bios.release: 1.8
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: E16S3IMS.108
dmi.board.asset.tag: Default string
dmi.board.name: MS-16S3
dmi.board.vendor: Micro-Star International Co., Ltd.
dmi.board.version: REV:1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Micro-Star International Co., Ltd.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrE16S3IMS.108:bd11/18/2019:br1.8:svnMicro-StarInternationalCo.,Ltd.:pnPrestige15A10SC:pvrREV1.0:rvnMicro-StarInternationalCo.,Ltd.:rnMS-16S3:rvrREV1.0:cvnMicro-StarInternationalCo.,Ltd.:ct10:cvrN/A:
dmi.product.family: Prestige
dmi.product.name: Prestige 15 A10SC
dmi.product.sku: 16S3.1
dmi.product.version: REV:1.0
dmi.sys.vendor: Micro-Star International Co., Ltd.
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