UsbHub not working on Ubuntu 18.04 LTS.
I have a notebook with only one USB 3.0 and two USB Type-C.
I tried to insert usb hub(guess usb hub 2.0) in USB 3.0 slot, but Ubuntu not recognized it. Also i tried to insert Logitech k330 keyboard - same result. But usb-flash that use USB 3.0 perfectly works on this slot.
[ 411.156178] usb 1-7: new full-speed USB device number 12 using xhci_hcd
[ 411.284575] usb 1-7: device descriptor read/64, error -71
[ 411.521344] usb 1-7: device descriptor read/64, error -71
[ 411.629659] usb usb1-port7: unable to enumerate USB device
sudo vi /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1 usbcore.old_scheme_first=1"
Am i missed something?
I don't think that the problem in hub, because on Windows 10 this hub works perfectly and Wireless Keyboard too. I hope the problem in configuration. And i have Lenovo yoga with very ugly BIOS configuration. There are no buttons in BIOS to change USB settings.
Unfortunately i haven't powered usb 2.0 hub. But i have USB 3.0 hub. Today i tried to use USB 3.0 hub. It's Qilive USB 3.0 hub with 7 out USB 3.0 ports. This hub was successfully connected, but only 4 USB 3.0 ports was recognised:
[ 4694.376640] usb 1-7.4: new high-speed USB device number 16 using xhci_hcd
[ 4694.401994] usb 1-7.4: New USB device found, idVendor=05e3, idProduct=0610
[ 4694.402000] usb 1-7.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 4694.402005] usb 1-7.4: Product: USB2.0 Hub [ 4694.402009] usb 1-7.4: Manufacturer: GenesysLogic
[ 4694.403092] hub 1-7.4:1.0: USB hub found
[ 4694.403535] hub 1-7.4:1.0: 4 ports
It's something like power issue, but why usb 2.0 devices not working if connected to USB 3.0 still unknown... And why on Windows there are no USB 3.0 or USB 2.0 issues.
Tried to connect USB mouse directly via USB 3.0 slot.
It didn't connect. But when i tried to connect USB mouse via USB 3.0 hub, It connects perfectly.
Something like I can not plug USB 2.0 devices in USB 3.0 slot directly in Ubuntu... But if i connect USB 3.0 hub, and connect USB 2.0 device to this hub - everything works... Will be glad any help.