On Tue, 31 Mar 2015, Marc Joliet wrote: > > Like Matt suggested, the most reasonable possibility is an interaction > > with the BIOS. > > Like I said in my replay to Matt, the BIOS doesn't support booting via USB. The If it supports a USB keyboard, it might still go through and initialize all the USB devices. > only thing I was able to try was to deactivate CD boot, which didn't change > anything (except make boot faster, which is a nice side-effect, since I > only very rarely boot from CD). > > I tried hooking it up to a borrowed laptop I have here (that only has USB 2 > ports) to see how it behaves at boot. The BIOS was set to boot form its > internal drive (followed by USB, but that would only trigger if the internal > drive were missing, so it shouldn't have any influence, right? Impossible to tell. A BIOS can do anything it wants, whether it makes sense or not. You'd have to monitor the USB bus to see what packets were actually exchanged. To find out what the USB adapter is really doing, the best approach is to ask the manufacturer -- since nobody else knows. The odds of getting a useful reply are not high, unfortunately. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
