> For a complete power-cycle, you may need to remove both the power cord > and the battery. I don't think the Intel wireless cards have any
Sure, I did: detach the cord and battery, wait ten minutes, then plug them
back in. No use.
> The log messages you sent are indicative of a total failure of
> communication with the card. My suspicion would be that the hardware
> has developed a fault, but it could be as simple as the card being
> slightly loose in its slot.
Total? How come? It does detect the card correct, except the revision, which
is 0xFFFFFFFF instead of 0x24 as it should. My guess is the final error comes
from the incorrect revision number – of course it probably fails already
somewhere earlier and simply getting the revision right (which could be hard-
coded in the driver) probably would not help.
> Having said that, are you setting the pcie_aspm kernel parameter?
Like Shannon, I have not touched it at all, so it is probably off (whatever
the default is).
One thing I tries, is turn all PCI* related power-save features off from the
BIOS, but that did not help.
My most important question is: how do I get back to the working state? Going
back in driver and kernel versions does not seem to help!
I admit that the above sounds like a HW failure, but like Shannon, I do not
believe it because a full *kernel* reboot *always* fixes the issue. Why would
a faulty hardware get fixed when the kernel gets rebooted, but NOT when the
computer power gets completely turned off and all the hardware reinitialised
during a hibernate cycle. I even tried the following sequence: hibernate,
unplug power cord and battery, wait a few minutes, plug back in, reboot *a*
*different* *kernel*, see that the wifi works with this kernel, shut down,
reboot with the original kernel, unsuspending from hibernate. At this point,
the wifi does not work. I think this is quite a strong indication that this is
NOT a HW issue.
But what makes me most confused is that rolling back to versions of wireless-
tools, firmware-iwlwifi, and kernel does not give me back a working system,
which does suggest a hw failure.
Shannon: FWIF, I have now rebooted with pci_aspm=off and we'll see what
happens.
Ben: I also replugged the wifi card.
Also, I am back to 3.2.6 and newest firmware (I forgot to roll back the newest
wireless tools).
-Juha
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| Juha Jäykkä, [email protected] |
| http://www.maths.leeds.ac.uk/~juhaj |
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