Messages in this thread | | | Subject | Re: Regression: radeonfb: No synchronisation on CRT with linux-2.6.13-rc5 | From | Benjamin Herrenschmidt <> | Date | Sun, 07 Aug 2005 23:48:08 +0200 |
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On Sun, 2005-08-07 at 19:25 +0200, Bodo Eggert wrote: > On Sun, 7 Aug 2005, Kyle Moffett wrote: > > On Aug 7, 2005, at 03:51:07, Benjamin Herrenschmidt wrote: > > > > 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....
Ben.
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