On Fri, Feb 4, 2011 at 11:11 AM, Linus Torvalds
[off-list ref] wrote:

On Thu, Feb 3, 2011 at 5:05 PM, Keith Packard [off-list ref] wrote:

quoted

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.