usb-c ports (4) are limited to 480 Mb/s. Should be 10 Gb/s
any device selecting a higher speed is ignored, no output to **dmesg --human --follow**
(bus usb4…6)
hardware is Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] [8086:15ec] (rev 06)
usb-a ports (2) work at 5 Gb/s
(bus usb1…2)
Hardware is Mac mini (2018) Macmini8,1
Linux is linux-generic-hwe-20.04
uname --release
5.8.0-36-generic
usb bus speeds:
for A in /sys/bus/usb/devices/usb*; do echo "$(basename $A): $(< $A/speed)"; done
usb1: 480
usb2: 10000
usb3: 480
usb4: 10000
usb5: 480
usb6: 10000
usb controllers:
find /sys/devices -regextype egrep -regex '.*/usb[0-9]+'
/sys/devices/pci0000:00/0000:00:01.2/0000:7b:00.0/0000:7c:02.0/0000:7e:00.0/usb5
/sys/devices/pci0000:00/0000:00:01.2/0000:7b:00.0/0000:7c:02.0/0000:7e:00.0/usb6
/sys/devices/pci0000:00/0000:00:01.1/0000:05:00.0/0000:06:02.0/0000:08:00.0/usb3
/sys/devices/pci0000:00/0000:00:01.1/0000:05:00.0/0000:06:02.0/0000:08:00.0/usb4
/sys/devices/pci0000:00/0000:00:14.0/usb1
/sys/devices/pci0000:00/0000:00:14.0/usb2
usb controller modules and drivers:
lspci -knns14
00:14.0 USB controller [0c03]: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller [8086:a36d] (rev 10)
Subsystem: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller [8086:7270]
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
lspci -knns7e:0
7e:00.0 USB controller [0c03]: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] [8086:15ec] (rev 06)
Subsystem: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] [8086:0000]
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
lspci -knns8:0
08:00.0 USB controller [0c03]: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] [8086:15ec] (rev 06)
Subsystem: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] [8086:0000]
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
**lsb_release -rd**
Description: Ubuntu 20.04.2 LTS
Release: 20.04
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: gdm 1470 F.... pulseaudio
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-09-20 (138 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Apple Inc. Macmini8,1
Package: linux (not installed)
ProcEnviron:
TERM=screen
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: root=/dev/mapper/hostname-rfs ro initrd=\initrd.img-5.8.0-36-generic
ProcVersionSignature: Ubuntu 5.8.0-36.40~20.04.1-generic 5.8.18
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.8.0-36-generic N/A
linux-backports-modules-5.8.0-36-generic N/A
linux-firmware 1.187.9
Tags: focal
Uname: Linux 5.8.0-36-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 07/12/2020
dmi.bios.release: 0.1
dmi.bios.vendor: Apple Inc.
dmi.bios.version: 1037.147.4.0.0 (iBridge: 17.16.16610.0.0,0)
dmi.board.name: Mac-7BA5B2DFE22DDD8C
dmi.board.vendor: Apple Inc.
dmi.board.version: Macmini8,1
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-7BA5B2DFE22DDD8C
dmi.modalias: dmi:bvnAppleInc.:bvr1037.147.4.0.0(iBridge17.16.16610.0.0,0):bd07/12/2020:br0.1:svnAppleInc.:pnMacmini8,1:pvr1.0:rvnAppleInc.:rnMac-7BA5B2DFE22DDD8C:rvrMacmini8,1:cvnAppleInc.:ct9:cvrMac-7BA5B2DFE22DDD8C:
dmi.product.family: Mac mini
dmi.product.name: Macmini8,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1914845
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.