Re: Regression: radeonfb: No synchronisation on CRT with linux-2.6.13-rc5

On Aug 7, 2005, at 21:13:54, Kyle Moffett wrote:

On Aug 7, 2005, at 12:13:38, Benjamin Herrenschmidt wrote:

quoted

_However_ there is an unrelated problem with some panels, including some
of the 17": The panel doesn't always "sync" properly. This seem to be
related to some subtle timing issue in the LVDS code but I don't know
exactly what yet. You can usually get it back by repeately turning the
backlight all the way down (which shuts the panel off) and back up until
it "catches".

Hmm.  This doesn't really fit as my issues are very reproducible.  The
behaviour under stock Debian 2.6.8 is identical during reboots and after
fblevel 0 ; sleep X ; fblevel 15.  Likewise, stock 2.6.11, 2.6.12.4, and
2.6.13-rc5, although I'm just getting back to testing things.

Damn.  As soon as I say this, I go back and am completely unable to make
2.6.13-rc5 reproduce the issue.  *grumble* black magic *grumble* :-D.

Cheers,
Kyle Moffett

--
There are two ways of constructing a software design. One way is to make it so
simple that there are obviously no deficiencies. And the other way is to make
it so complicated that there are no obvious deficiencies.  The first method is
far more difficult.
  -- C.A.R. Hoare




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