linux-kernel - Re: 2.6.38-rc3-git1: Reported regressions 2.6.36 -> 2.6.37

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Message-ID: <AANLkTin-9a5Z3qq4t8UakRvgB1G3_CT2RLKMVaHXvnLr@mail.gmail.com>
Date:	Thu, 3 Feb 2011 17:11:14 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Keith Packard <keithp@...thp.com>
Cc:	Dave Airlie <airlied@...il.com>, Carlos Mafra <crmafra2@...il.com>,
	Dave Airlie <airlied@...hat.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Takashi Iwai <tiwai@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>,
	Florian Mickler <florian@...kler.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	Linux ACPI <linux-acpi@...r.kernel.org>,
	Linux PM List <linux-pm@...ts.linux-foundation.org>,
	Linux SCSI List <linux-scsi@...r.kernel.org>,
	Linux Wireless List <linux-wireless@...r.kernel.org>,
	DRI <dri-devel@...ts.freedesktop.org>
Subject: Re: 2.6.38-rc3-git1: Reported regressions 2.6.36 -> 2.6.37

On Thu, Feb 3, 2011 at 5:05 PM, Keith Packard <keithp@...thp.com> wrote:
>
> The goal is to make it so that when you *do* set a mode, DPMS gets set
> to ON (as the monitor will actually be "on" at that point). Here's a
> patch which does the DPMS_ON precisely when setting a mode.

Ok, patch looks sane, but it does leave me with the "what about the
'fb_changed' case?" question. Is that case basically guaranteed to not
change any existing dpms state?

> (note, this patch compiles, but is otherwise only lightly tested).

Carlos? Takashi? Ignore my crazy patch, try this one instead. Does it
fix things for you?

                      Linus
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