Public bug reported:
I am running Ubuntu 19.10 on a Lenovo Thinkpad X1 Extreme. I have a
CalDigit TS3 Plus USB-C hub connected to one of the laptop's
USB-C/Thunderbolt ports. The laptop supports charging over USB-C. When I
try to charge from the hub over USB-C, Ubuntu seems to frequently "drop"
the connection to the hub and loses connection to the stuff attached to
the hub (e.g., an external monitor connected to the hub by USB-C to
displayport, an ethernet connection, and USB devices). After a few
seconds, the computer reconnects to these devices.
I disabled TLP but the problem persists.
When I have the laptop's power adapter attached in addition to the USB-C
hub, the problem does not appear and the computer does not lose
connection to the peripherals.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-23-generic 5.3.0-23.25
ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7
Uname: Linux 5.3.0-23-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: matt 2211 F.... pulseaudio
/dev/snd/controlC1: matt 2211 F.... pulseaudio
/dev/snd/controlC0: matt 2211 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Mon Nov 18 13:44:33 2019
InstallationDate: Installed on 2019-09-04 (75 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
MachineType: LENOVO 20MGS1YW00
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-23-generic
root=UUID=3a5c73f9-5be3-4590-88a9-e362d949931c ro quiet splash
resume=UUID=d464672d-224c-4149-a105-3a0cad515692 vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.3.0-23-generic N/A
linux-backports-modules-5.3.0-23-generic N/A
linux-firmware 1.183.2
SourcePackage: linux
UpgradeStatus: Upgraded to eoan on 2019-10-21 (28 days ago)
dmi.bios.date: 08/06/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N2EET42W (1.24 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20MGS1YW00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN2EET42W(1.24):bd08/06/2019:svnLENOVO:pn20MGS1YW00:pvrThinkPadX1Extreme:rvnLENOVO:rn20MGS1YW00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Extreme
dmi.product.name: 20MGS1YW00
dmi.product.sku: LENOVO_MT_20MG_BU_Think_FM_ThinkPad X1 Extreme
dmi.product.version: ThinkPad X1 Extreme
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug eoan
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1853061
Title:
Connection to USB-C hub frequently drops when charging over it
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853061/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
