Re: Debugging USB device issues

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Note, from my experience the micro usb plug was the worst usb plug
ever. (commonly used for charging/data).  It seems to wear out and
stop working on the device end (ie the expensive end).  I had to get a
wireless charge for my last phone with micro usb because even with a
new cable you physically had to hold the phone and the cable just
write to get it to charge.  The mini-usb did not seem to have that
wear issue as fast.  My phone stopped working/charging with around 1x
insertion per day for about 3 years (around 1000 insertions) and the
wear issue was on the expensive end (the phone/socket side), not the
cable end as the design intended.

micro-usb was designed to be more reliable than mini-usb, my data, and
many others real world data seems to indicate that design was
massively flawed and the micro-usb is unreliable crap and while
designed to have 2-10x more insertions than mini-usb (in theory) seems
to fail several times faster than mini-usb (in reality).  And has to
then be bent/adjusted/held just right for it to work (even with "new"
cables).  So be careful with that flawed micro-usb data/charging
connection.   And while it could be that it was just some of the
micro-usb sockets the one I had go bad was in a major manufacturer
high-end phone, so not someplace that should have bought the cheapest
socket built by a poor manufacturer.

On Wed, Oct 27, 2021 at 4:54 AM Philip Rhoades via users
<users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Samuel,
>
>
> On 2021-10-27 19:31, Samuel Sieb wrote:
> > On 2021-10-26 10:10, Philip Rhoades via users wrote:
> >> I am getting nothing recorded in /var/log/messages when I plug in the
> >> GoPro and push its power button (plugging in any other USB device is
> >> working of course) so maybe it is the USB port on the camera that is
> >> the problem? - is there any way to debug that from the Fedora
> >> workstation?
> >
> > After seeing Tim's message, I realized what you wrote.  How do you
> > have /var/log/messages?  Run "sudo journalctl -fa" in a terminal
> > before plugging in the cable and see if anything shows up.
>
>
> Interesting - at first I got no response for a couple of the permuations
> I had tried before - so I tried a new permutation of USB port and two
> cables - an extension cable connected to a std USB cable with a micro
> plug - which worked!  Now I am confused about why ALL the other
> permutations worked for ALL the other devices - besides the camera . .
> weird - maybe it is an intermittent cable or camera problem? - hmm . .
> more testing required . . at least I know now that the connection is not
> 100% failed . .
>
> Thanks for responding - I appreciate it!
>
> Regards,
>
> Phil.
> --
> Philip Rhoades
>
> PO Box 896
> Cowra  NSW  2794
> Australia
> E-mail:  phil@xxxxxxxxxxxxx
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