Voila on s’aperçoit que les usb sont pratiquement en erreur 32
version ubuntu 18.04.3 lts
1.820053] usb 2-1: device descriptor read/64, error -32
[ 2.060062] usb 2-1: device descriptor read/64, error -32
[ 2.180127] usb 7-3: device descriptor read/64, error -32
[ 2.424096] usb 2-1: device descriptor read/64, error -32
[ 2.448110] usb 7-3: device descriptor read/64, error -32
[ 2.660131] usb 2-1: device descriptor read/64, error -32
[ 2.872127] usb 7-3: device descriptor read/64, error -32
[ 3.140154] usb 7-3: device descriptor read/64, error -32
[ 3.628116] usb 2-1: device not accepting address 4, error -32
[ 4.136119] usb 7-3: device not accepting address 4, error -32
[ 4.172121] usb 2-1: device not accepting address 5, error -32
[ 4.172152] usb usb2-port1: unable to enumerate USB device
[ 4.688107] usb 5-1: device descriptor read/64, error -32
[ 4.708103] usb 7-3: device not accepting address 5, error -32
[ 4.708128] usb usb7-port3: unable to enumerate USB device
[ 4.956104] usb 5-1: device descriptor read/64, error -32
[ 5.380124] usb 5-1: device descriptor read/64, error -32
[ 5.648044] usb 5-1: device descriptor read/64, error -32
[ 6.672103] usb 5-1: device not accepting address 4, error -32
[ 7.272103] usb 5-1: device not accepting address 5, error -32
[ 7.272139] usb usb5-port1: unable to enumerate USB device
[ 2987.982333] usb 2-3: device descriptor read/64, error -32
[ 2988.218277] usb 2-3: device descriptor read/64, error -32
[ 2988.582274] usb 2-3: device descriptor read/64, error -32
[ 2988.818292] usb 2-3: device descriptor read/64, error -32
[ 3010.834378] usb 3-2: device descriptor read/64, error -32
[ 3011.070378] usb 3-2: device descriptor read/64, error -32
[ 3011.434432] usb 3-2: device descriptor read/64, error -32
[ 3011.670365] usb 3-2: device descriptor read/64, error -32
[ 3012.650335] usb 3-2: device not accepting address 5, error -71
[ 3015.806307] usb 3-1: device descriptor read/64, error -32
[ 3016.042387] usb 3-1: device descriptor read/64, error -32
[ 3016.406343] usb 3-1: device descriptor read/64, error -32
[ 3016.642389] usb 3-1: device descriptor read/64, error -32
[ 3017.610389] usb 3-1: device not accepting address 9, error -32
[ 3018.154387] usb 3-1: device not accepting address 10, error -32
[ 3018.154423] usb usb3-port1: unable to enumerate USB device
[ 3018.698393] usb 7-1: device descriptor read/64, error -32
[ 3018.966390] usb 7-1: device descriptor read/64, error -32
[ 3020.178393] usb 7-3: device descriptor read/64, error -32
[ 3020.446393] usb 7-3: device descriptor read/64, error -32
[ 3020.870394] usb 7-3: device descriptor read/64, error -32
[ 3021.138395] usb 7-3: device descriptor read/64, error -32
[ 3021.694401] usb 1-1: device descriptor read/64, error -32
[ 3021.930398] usb 1-1: device descriptor read/64, error -32
[ 3022.134399] usb 7-3: device not accepting address 10, error -32
[ 3022.294413] usb 1-1: device descriptor read/64, error -32
[ 3022.530368] usb 1-1: device descriptor read/64, error -32
[ 3022.706419] usb 7-3: device not accepting address 11, error -32
[ 3022.706447] usb usb7-port3: unable to enumerate USB device
[ 3023.498385] usb 1-1: device not accepting address 4, error -32
[ 3024.042398] usb 1-1: device not accepting address 5, error -32
[ 3024.042434] usb usb1-port1: unable to enumerate USB device
[ 3024.558401] usb 4-1: device descriptor read/64, error -32
[ 3024.826403] usb 4-1: device descriptor read/64, error -32
[ 3025.250403] usb 4-1: device descriptor read/64, error -32
[ 3025.518403] usb 4-1: device descriptor read/64, error -32
[ 3047.306443] usb 4-1: device descriptor read/64, error -32
[ 3047.574443] usb 4-1: device descriptor read/64, error -32
[ 3047.998430] usb 4-1: device descriptor read/64, error -32
[ 3048.266440] usb 4-1: device descriptor read/64, error -32
[ 3049.262443] usb 4-1: device not accepting address 7, error -32
[ 3049.862444] usb 4-1: device not accepting address 8, error -32
[ 3049.862498] usb usb4-port1: unable to enumerate USB device
michel@michel-haut:~$
michel@michel-haut:~$ lsusb
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 004: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 008 Device 003: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 008 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
michel@michel-haut:~$