Re: [Bug 10345] USB HID problems after resume

From: Mark Lord
Date: Sun Mar 30 2008 - 13:46:40 EST


Pavel Machek wrote:
On Sat 2008-03-29 13:15:40, Mark Lord wrote:
..
Just happened again. The machine resumed from RAM with no functioning USB.
Still running the exact same 2.6.25-rc7 kernel as before, with the RTC conflict fixed.

WTF?

3GB of RAM? Try iommu=soft.
..

What does that option do (it is not in Documentation/kernel-parameters.txt),
and why do you suspect it may make a difference here?

Thanks
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