[Bug 574438] Re: No USB after suspend on ThinkPad T510

[craigster0]

*** This bug is a duplicate of bug 566149 ***
    https://bugs.launchpad.net/bugs/566149

Just in case its not clear to a newbie, like me, this is (likely) a
duplicate of https://bugs.launchpad.net/bugs/566149 .  If you're not
logged in, the only indication that this is a duplicate is in the box in
the uppper right hand corner of the page where it says "Duplicate of bug
#566149".  I missed that.

Anyway, a fix has been proposed that fixes the problem for many people.
It should been in the kernel distribution soon, but is not yet present
in 2.6.32-22.

Probably the clearest indication of that bug is the following lines in
/var/log/messages (and in dmesg output) after a resume:

...
Jun 27 16:59:09 wideload kernel: [18446744057.921733] usb 2-1.3: reset high speed USB device using ehci_hcd and address 3
Jun 27 16:59:09 wideload kernel: [18446744058.032278] PM: resume of drv:usb dev:2-1.3 complete after 185.665 msecs
Jun 27 16:59:09 wideload kernel: [18446744058.035033] PM: resume of devices complete after 1902.144 msecs
Jun 27 16:59:09 wideload kernel: [18446744058.035183] PM: resume devices took 1.900 seconds
Jun 27 16:59:09 wideload kernel: [18446744058.035213] Restarting tasks ... 
Jun 27 16:59:09 wideload kernel: [18446744058.049510] usb 1-1.1: USB disconnect, address 3
Jun 27 16:59:09 wideload kernel: [18446744058.049513] usb 1-1.1.1: USB disconnect, address 6
Jun 27 16:59:09 wideload kernel: [18446744058.078230] done.
Jun 27 16:59:09 wideload kernel: [18446744058.131399] usb 1-1.1.2: USB disconnect, address 7


If you don't see the "disconnect" messages, then i suspect you have a different bug.

-- 
No USB after suspend on ThinkPad T510
https://bugs.launchpad.net/bugs/574438
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