On Fri, 2016-04-01 at 11:34 +0100, Robin Oberg wrote: > On Fri, 2016-04-01 at 11:21 +0100, Oliver Elphick wrote: > > Intermittent failures like that sound more like hardware problems. > > I > > seem to recall reading that charging devices like that demands more > > power than the computer can supply. > > > > Oliver Elphick
> Would that not mean that the same problem exists in other operating > systems as well? But seeing as it works fine to charge this old > iPhone 4 > in Windows, so it does not seem like a hardware malfunction in this > particular case. Not necessarily. It might be that Windows doesn't use a particular area of memory that Linux does. I should go for the other poster's suggestion, of using a powered USB hub. If the failures cease, it was a hardware problem.