From: Daniel Smoczyk <daniel.smoczyk@gmail.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Arjan van de Ven <arjan@infradead.org>,
rui.zhang@intel.com, shaohua.li@intel.com, yakui.zhao@intel.com,
bugzilla-daemon@bugzilla.kernel.org,
bugme-daemon@bugzilla.kernel.org, linux-usb@vger.kernel.org,
linux-acpi@vger.kernel.org, imrehg@gmail.com
Subject: Re: [Bugme-new] [Bug 13145] New: Processor does not go below C2 if mouse (uhci) is plugged in.
Date: Wed, 22 Apr 2009 17:09:20 +0200 [thread overview]
Message-ID: <d7131a800904220809ha96c0e5rd366abfcbae4d1c2@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0904221050110.3405-100000@iolanthe.rowland.org>
On Wed, Apr 22, 2009 at 4:51 PM, Alan Stern <stern@rowland.harvard.edu> wrote:
> In fact the bug report says that 2.6.27 worked okay.
Not true, didn't tested 2.6.27 - there wasn't such one in debian repos.
> However the changes to uhci-hcd between 2.6.27 and 2.6.28 are quite
> minimal. I can't see how any of them could have had this effect. It
> must be due to a change somewhere else in the kernel.
Could You please check 26 <-> 27? In my opinion uhci-hcd was able to
autosuspend while mouse wasn't used in 2.6.26 and it isn't able to do
autosuspend now ( C3 works ok after "rmmod uhci-hcd")
This situation is very similar to using usb memory stick non-stop,
when watching move for eg. then processor also never goes below C2.
Daniel Smoczyk
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next prev parent reply other threads:[~2009-04-22 15:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-13145-10286@http.bugzilla.kernel.org/>
[not found] ` <bug-13145-10286-V0hAGp6uBxO456/isadD/XN4h3HLQggn@public.gmane.org/>
2009-04-21 21:27 ` [Bugme-new] [Bug 13145] New: Processor does not go below C2 if mouse (uhci) is plugged in Andrew Morton
2009-04-21 21:40 ` Arjan van de Ven
2009-04-21 22:22 ` Oliver Neukum
2009-04-21 23:49 ` Arjan van de Ven
2009-04-22 8:48 ` Oliver Neukum
[not found] ` <200904221048.35180.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
2009-04-22 9:12 ` Shaohua Li
[not found] ` <20090422091247.GA28309-U5EdaLXB8smDugQYiPIPGdh3ngVCH38I@public.gmane.org>
2009-04-22 18:35 ` Len Brown
[not found] ` <20090421142751.b030cba7.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2009-04-22 14:51 ` Alan Stern
2009-04-22 15:09 ` Daniel Smoczyk [this message]
[not found] ` <d7131a800904220809ha96c0e5rd366abfcbae4d1c2-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-04-22 16:39 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0904221050110.3405-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2009-04-22 17:36 ` Oliver Neukum
[not found] ` <200904221936.38942.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
2009-04-22 22:54 ` Len Brown
[not found] ` <alpine.LFD.2.00.0904221848380.21119-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-04-22 23:53 ` [RFC PATCH] ACPI: delete obsolete "bus master activity" proc field Len Brown
2009-04-23 0:40 ` [Bugme-new] [Bug 13145] New: Processor does not go below C2 if mouse (uhci) is plugged in Len Brown
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