USB ports conflict with each other
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Here I am running a lenovo Helix 2 on a lenovo dock. The dock works (except of the HDMI output, which is another case and filed elsewhere).
So the dock works with headphones, ethernet and its 3 USB-plugs. However, the latter seem to influence each other, like in the good old days when an interrupt was shared.
I run a Logitech receiver for mouse and keyboard on the dock, which works fine. This is how it looks like:
$ lsusb
Bus 002 Device 005: ID 2109:8113 VIA Labs, Inc.
Bus 002 Device 004: ID 17ef:3052 Lenovo
Bus 002 Device 003: ID 2109:8110 VIA Labs, Inc. Hub
Bus 002 Device 002: ID 05e3:0747 Genesys Logic, Inc.
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 009: ID 04f2:b45c Chicony Electronics Co., Ltd
Bus 001 Device 006: ID 8087:0a2a Intel Corp.
Bus 001 Device 004: ID 1199:a001 Sierra Wireless, Inc.
Bus 001 Device 007: ID 17ef:3053 Lenovo
Bus 001 Device 008: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 005: ID 2109:8112 VIA Labs, Inc.
Bus 001 Device 003: ID 2109:8112 VIA Labs, Inc.
Bus 001 Device 002: ID 04f2:b45b Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
However, when I plug an external hard disk (2.5") into another USB-plug, the movements of the mouse and the keystrokes are 90% of the time ineffective, respectively the mouse can almost never be moved. Here is how it looks like:
$ lsusb
Bus 002 Device 007: ID 152d:0578 JMicron Technology Corp. / JMicron USA Technology Corp.
Bus 002 Device 005: ID 2109:8113 VIA Labs, Inc.
Bus 002 Device 004: ID 17ef:3052 Lenovo
Bus 002 Device 003: ID 2109:8110 VIA Labs, Inc. Hub
Bus 002 Device 002: ID 05e3:0747 Genesys Logic, Inc.
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 009: ID 04f2:b45c Chicony Electronics Co., Ltd
Bus 001 Device 006: ID 8087:0a2a Intel Corp.
Bus 001 Device 004: ID 1199:a001 Sierra Wireless, Inc.
Bus 001 Device 007: ID 17ef:3053 Lenovo
Bus 001 Device 008: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 005: ID 2109:8112 VIA Labs, Inc.
Bus 001 Device 003: ID 2109:8112 VIA Labs, Inc.
Bus 001 Device 002: ID 04f2:b45b Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Removing the hard disk from the dock, respectively plugging the receiver into the tablet itself, solve this problem immediately.
I am using the original lenovo power supply. Therefore I can't make out a problem in supply voltage.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: KDE
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=
InstallationDate: Installed on 2019-02-16 (7 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: LENOVO 20CHS10P02
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.173.3
Tags: bionic
Uname: Linux 4.15.0-45-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 10/31/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N17ETA2W (2.02 )
dmi.board.
dmi.board.name: 20CHS10P02
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.
dmi.chassis.type: 11
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.family: ThinkPad Helix 2nd
dmi.product.name: 20CHS10P02
dmi.product.
dmi.sys.vendor: LENOVO
affects: | ubuntu → linux (Ubuntu) |
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