On Wed, 27 Oct 2021 at 06:54, Philip Rhoades via users < users@lists.fedoraproject.org> 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! > Glad your camera is still alive. Cables and connectors should always be a prime suspect when things stop working. Having worked at an oceanographic institute, salt air and cables is not a good combination. Cables and connectors are vulnerable to damage from corrosion and vibration. Cheap cables are also prone radio-frequency interference (RFI). You can buy "contact enhancer" fluid such as "Stabilant 22" (used in aviation and increasingly used by automakers and auto repair shops -- I'm in Canada and Stabilant 22 is now sold by auto parts stores here). USB3 uses signals that can cause RFI with older equipment. I find that older USB2 devices are often more reliable when used with an external hub so not connected to a socket on the back of a system next to one being used by a USB3 device. -- George N. White III
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