USB ports on Lenovo T400 do not work after a suspend/resume

Lars Engels lars.engels at 0x20.net
Sun Jul 7 20:50:01 UTC 2013


On Sun, Jun 30, 2013 at 03:02:57PM -0700, Adrian Chadd wrote:
> On 30 June 2013 07:22, Ian Smith <smithi at nimnet.asn.au> wrote:
> 
> > After removing [numbers] (for WITNESS?), diff started making sense.
> > The below is between the first and second suspend/resume cycles in
> > dmesg-3.txt, encompassing the others.
> 
> Cool!
> 
> > Nothing of note that I can see, if that usb hub-to-bus remapping is
> > normal.  As you said, 'CPU0: local APIC error 0x40' looks maybe sus.
> > Maybe someone who knows might comment on that?
> >
> > Just checking: you've tried other USB devices apart from uftdi0?
> 
> Yup, there's no 5v on the port.

Oh, BTW: can you check if you have power on the ports after the first
resume and no power after all next resumes until you reboot your
notebook?
That's the situation I had and maybe it can lead to something. ;)
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