Originally Posted by linuxbird
Running Slackware 14.0 on a Gigabyte Board, and periocially, perhaps once every 3 or 4 weeks, the power to the USB stops, and my phone stops charging. Sometimes it impacts all the USB ports, other times just a few.
is your computer running 24/7 all the time, or is it in standby mode?
If it's running full-on all the time, I've got no explanation for what you describe.
In standby, however, it is quite common, that USB power is retained (though not all boards and/or USB controllers do that), just like many network interfaces stay awake with the computer in standby. However, if there's a brief power outage (say, just a few seconds or even less than a second), the computer is completely powerless for an instant. When power returns, the computer enters standby mode again, but the peripherals like USB controllers or NICs have kind of "forgotten" their state.
No idea if that's really what you're experiencing, though.
[X] Doc CPU