On Wed, 3 Oct 2007, markus reichelt wrote: > > > I've noticed a strange USB disconnect of an external HDD. There's > > > several USB devices connected to this machine at all times, > > > mostly hubs, but some directly connected HDD gets hit by this > > > issue.
> But I tracked this annoying problem down anyway. It turned out it was > solely hardware-related; I used the additional USB-port connectors on > the motherboard (cable->slot) and these little buggers feature a > pretty weak power supply. It's ok if a self-powered hub is connected > to them, but if a device even demands 100 mA it borks (f.e. my old > webcam). Chipset is nvidia (CK8S USB Controller). Odd. Any bus-powered device is allowed to draw up to 100 mA. This sounds like a good chipset to avoid. Thanks for telling us the solution. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
