On 03/05/2018 07:33 PM, R0b0t1 wrote: > On Mon, Mar 5, 2018 at 7:40 PM, <the...@sys-concept.com> wrote: >> Is there a way to reinitialize USB ports without restarting the computer? >> >> Two of my USB 3 ports stop working. >> >> lsusb -t >> /: Bus 11.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M >> /: Bus 10.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M >> /: Bus 09.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M >> /: Bus 08.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M >> /: Bus 07.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/4p, 12M >> /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/2p, 12M >> /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/5p, 12M >> |__ Port 3: Dev 13, If 0, Class=Human Interface Device, >> Driver=usbhid, 12M >> /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/5p, 12M >> |__ Port 4: Dev 2, If 0, Class=Human Interface Device, >> Driver=usbhid, 12M >> |__ Port 4: Dev 2, If 1, Class=Human Interface Device, >> Driver=usbhid, 12M >> |__ Port 4: Dev 2, If 2, Class=Human Interface Device, >> Driver=usbhid, 12M >> /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/4p, 480M >> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/5p, 480M >> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/5p, 480M >> > > How do you know they've stopped working? Are there notices in dmesg? > Some devices do not work well on USB3 ports. > > Cheers, > R0b0t1
dmesg is not showing anything. I have an usb extension cord pluged-in to the back of the computer "blue usb port" (I think the color blue designates USB-3), there are two of them. My usb stick was working OK on one, but it stopped. I pluged the USB extension cord to the other port; so it was working for a while. Now the second one stop working as well. When I connect my USB stick to the extension cable the "dmesg" is not showing any output. -- Thelma
