From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
To: Patrik Kullman <patrik.kullman@gmail.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Alan Stern <stern@rowland.harvard.edu>,
Steven Rostedt <rostedt@goodmis.org>,
michal@ellpspace.math.ualberta.ca,
Oliver Neukum <oneukum@suse.de>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Linux PM mailing list <linux-pm@vger.kernel.org>,
"pavel@ucw.cz" <pavel@ucw.cz>,
"len.brown@intel.com" <len.brown@intel.com>,
Greg Kroah-Hartman <gregkh@suse.de>
Subject: Re: xhci_hcd: Runtime PM causes port to inactivate
Date: Sun, 04 Dec 2011 21:02:06 +0530 [thread overview]
Message-ID: <4EDB9276.6070302@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAGPN=9SQraacGpNJTtsA4NUk8Re1neJaDt42u8HFw8Hg-+n5BQ@mail.gmail.com>
There is a very similar discussion going on at:
http://thread.gmane.org/gmane.linux.kernel/1222803
Cc'ing all the relevant people and mailing lists.
Regards,
Srivatsa S. Bhat
On 12/04/2011 04:47 PM, Patrik Kullman wrote:
> Issuing
>
> echo auto > /sys/bus/pci/devices/0000:03:00.0/power/control
>
> on my Asus Zenbook UX31E with a
>
> 03:00.0 USB Controller: Fresco Logic Device 1009 (rev 02)
>
> causes its USB3-port to become mostly disabled.
>
> It does have a "Charger+" feature that allows it to charge cellphones
> etc even when turned off, and this feature works when power control is
> in "auto" mode.
>
> In all other aspects, the port is turned off. It doesn't react to
> devices being inserted.
>
> This does not feel like the desired behavior.
>
> Also, suspend does not work without unbinding the xhci_hcd module, not
> sure if that is related.
> Computer will not suspend/resume unless the following script is used
> in /etc/pm/sleep.d:
> https://help.ubuntu.com/community/AsusZenbook#Suspend.2C_Hibernate.2C_Shut-down_and_Reboot
>
> This behavior has not changed between 3.0 and 3.2-rc4+ that I've tried today.
next prev parent reply other threads:[~2011-12-04 15:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-04 11:17 xhci_hcd: Runtime PM causes port to inactivate Patrik Kullman
2011-12-04 15:32 ` Srivatsa S. Bhat [this message]
2011-12-07 20:15 ` Patrik Kullman
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