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

On Sun, 7 Aug 2005, Benjamin Herrenschmidt wrote:

On Sun, 2005-08-07 at 19:25 +0200, Bodo Eggert wrote:

quoted

On Sun, 7 Aug 2005, Kyle Moffett wrote:

quoted

On Aug 7, 2005, at 03:51:07, Benjamin Herrenschmidt wrote:

quoted

quoted

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Ah ! Interesting... I don't see why PREEMPT would affect radeonfb
though ... Can you try something like wrapper radeon_write_mode() with
preempt_disable()/preempt_enable() and tell me if it makes a
difference ?

Did not help. The values used to initialize the mode seem to be wrong.
Copying the aty directory from 2.6.12 did not help, too.

I don't see how PREEMPT could have any impact there unless you are
experiencing memory corruption... or one of those panels that have so
subtle timing issues that they sometimes don't sync depending on how
many flies you have in your room....

The wrong values are constant across reboots (see my first mail), and I 
have a CRT.

Can you tell me where the timing values are read?
-- 
E.G.G.E.R.T.: Electronic Guardian Generated for 
              Efficient Repair and Troubleshooting
	-- http://www.brunching.com/toys/toy-cyborger.html


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