On 12/03/09 07:16, Alan Stern wrote:
On Thu, 3 Dec 2009, Oliver Neukum wrote:
Am Donnerstag, 3. Dezember 2009 01:58:46 schrieb Justin P. Mattock:
Now looking at dmesg I see:
[ 413.551845] uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low)
-> IRQ 23
[ 413.551855] uhci_hcd 0000:00:1d.0: setting latency timer to 64
[ 413.551887] usb usb2: root hub lost power or was reset
Is that unexpected? It seems reasonable to me..
honestly I can't remember seeing this or not.
if this is normal then I'll leave it as is.
This happens if your system cuts power to USB during S2.
It also happens if the system retains power but resets the controller
while resuming (as indicated by the log message: "lost power or was
reset".) Again, it's a BIOS thing.
And it seems to be very widespread. I haven't seen more than a handful
of systems which _don't_ cut power or reset their UHCI controllers
during S3 sleep.
Alan Stern
Thanks for all the info on this.
Well, s2ram works ended up being
isight_firmware for some reason
or another. As for the reset
it is a macbook, so if theres something wrong
with the bios, then this makes sense
(something with efi);
In any case everything else seems o.k.
Thanks again for the info.
Justin P. Mattock
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