On Mon, Mar 5, 2018 at 10:44 PM,  <the...@sys-concept.com> wrote:
> On 03/05/2018 09:33 PM, R0b0t1 wrote:
>> On Mon, Mar 5, 2018 at 9:41 PM,  <the...@sys-concept.com> wrote:
>>> 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.
>>>
>>
>> I've had this happen, but it wasn't reproducible. Is the drive
>> (sd[a-z]) still left on your filesystem?
>
> df -h
> Filesystem      Size  Used Avail Use% Mounted on
> /dev/sda3        74G   17G   54G  24% /
> tmpfs           1.6G  1.4M  1.6G   1% /run
> dev              10M     0   10M   0% /dev
> shm             7.9G   36M  7.8G   1% /dev/shm
> cgroup_root      10M     0   10M   0% /sys/fs/cgroup
> /dev/sda4       925G  409G  469G  47% /home
> /dev/sda5       828G  620G  166G  79% /home2
> /dev/sda1        30M   23M  6.0M  79% /boot
> none            7.9G     0  7.9G   0% /run/user/1000
>

Sorry, I meant under /dev - is the last drive you plugged in still
there despite having been removed?

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