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

From: Dave Airlie
Date: Thu Feb 03 2011 - 20:42:43 EST


On Fri, Feb 4, 2011 at 11:11 AM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, Feb 3, 2011 at 5:05 PM, Keith Packard <keithp@xxxxxxxxxx> 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?

Yes its inconsistent behaviour but nothing in the fb_changed case will
affect the DPMS
state. I expect we should probably do that so all paths via that
function turn DPMS on,
and it'll be consistent, might be something for 39.

Dave.
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