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SubjectRe: Regression: radeonfb: No synchronisation on CRT with linux-2.6.13-rc5
Date
On Aug 7, 2005, at 21:13:54, Kyle Moffett wrote:
> On Aug 7, 2005, at 12:13:38, Benjamin Herrenschmidt wrote:
>> _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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