Comment from: Mosez [Visitor]
MosezGood job narrowing down the problem and finding the device that is mucking up your reboot - however, calling that 'solved' is a bit of a stretch, isn’t it? I’d call it a workaround at best.

I have observed similar behaviour with an APC SmartUPS 1500 to an USB 1.1/2.0 port on an ASUS E35M1-M PRO motherboard (fw 1502). Fiddling with the legacy and EHCI handoff settings so far has not yielded any improvements.

The only thing that appears to work is connecting the UPS to one of the two available USB 3.0 ports – the motherboard POSTs and boots just fine. Unfortunately though my OS has problems with that approach (USB 3.0 related bug in Ubuntu 11.10 kernel).
02/29/12 @ 19:24
Comment from: Robin Smidsrød [Member] Email
@Mosez: You're correct that it is more of a workaround than a solution. I was planning on reporting the issue to ASUS, hoping for a firmware update, but never got around to it.

Have you reported the issue to either ASUS or APC?
03/02/12 @ 18:46
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