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Author Topic: pc usb connector problem  (Read 1456 times)
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max
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« on: December 19, 2020, 10:12:34 10:12 »

Hi,

In a pc and laptop I have usb port problem, some ports are working
and some ports are not working i.e no response, while device manager
shows usb hardware is working properly.

Is there anyway or tips tricks to recover the not working usb ports?

Regards
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pickit2
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« Reply #1 on: December 19, 2020, 11:07:28 11:07 »

if your device is seen in some ports but not orthers, remove the drivers and then Scan for hardware changes.
removing drivers and reinstalling is the easy fix.
If still having problems try google / youtube.

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ph1lw31
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« Reply #2 on: December 20, 2020, 03:54:53 15:54 »

I have a faulty USB port on my Works Laptop, device manager does not show up any issues, it only measures 2.5v if you measure the O/P voltage on the faulty USB port, whereas the other ports are ok @ 5V - I must say that i damaged this port with one of my projects (I must use an external USB hub in future) Sad
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« Reply #3 on: December 20, 2020, 05:46:50 17:46 »

you can try this small free program to analyse your USB ports. Very helpful.
https://www.uwe-sieber.de/usbtreeview_e.html
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Poty
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« Reply #4 on: December 21, 2020, 03:19:14 15:19 »

A few years ago, someone asked me about a failing usb port... He was an old person... no parkinson, but seemed that he thought that usb was like a slot machine... that you can plug in in any way he wanted.... you can imagine how was the notebook connector state. Other case, with my children... pulling usb cables, and not aligned with the connector is nor a good idea.... for the connector AND the cable...
Besides that, sometimes usb drivers doesn´t work properly, but be careful, they usually work fine.
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token0
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« Reply #5 on: December 27, 2020, 03:42:57 15:42 »

To diagnose if USB problem is software, I recommend this:

1. Run linux, live-usb will suffice. I recommend debian or ubuntu.
2. run terminal command
    
Code:
sudo lsusb
to list all live USB devices

example output:
Code:
Bus 005 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 1130:f211 Tenx Technology, Inc. TP6911 Audio Headset
Bus 003 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 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


3. run terminal command
    
Code:
sudo dmesg -Hkw
to display kernel log messages in real time; at this point connect your working USB device to USB ports of your PC and look at kernel log messages. If USB port is working, you will see output like this:

Code:
[Dec27 17:33] usb 3-1: new full-speed USB device number 2 using ohci-platform
[  +0.231052] usb 3-1: New USB device found, idVendor=1130, idProduct=f211, bcdDevice= 5.10
[  +0.000018] usb 3-1: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[  +0.000011] usb 3-1: Product: USB  AUDIO
[  +0.009990] input: USB  AUDIO   as /devices/platform/ff5d0000.usb/usb3/3-1/3-1:1.3/0003:1130:F211.0001/input/input3
[  +0.060824] hid-generic 0003:1130:F211.0001: input,hidraw0: USB HID v1.10 Device [USB  AUDIO  ] on usb-ff5d0000.usb-1/input3
[  +0.005193] input: USB  AUDIO   as /devices/platform/ff5d0000.usb/usb3/3-1/3-1:1.4/0003:1130:F211.0002/input/input4
[  +0.057555] hid-generic 0003:1130:F211.0002: input,hidraw1: USB HID v1.10 Device [USB  AUDIO  ] on usb-ff5d0000.usb-1/input4
[  +0.108495] usb 3-1: usbmixer: volume control quirk for Tenx TP6911 Audio Headset
[  +0.000025] usb 3-1: usbmixer: volume control quirk for Tenx TP6911 Audio Headset
[  +0.000733] usbcore: registered new interface driver snd-usb-audio

ctrl-c to exit


If you had zero output on some ports, then problem is in hardware.
« Last Edit: December 27, 2020, 03:50:06 15:50 by token0 » Logged
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