lkml.org 
[lkml]   [2005]   [Aug]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Regression: radeonfb: No synchronisation on CRT with linux-2.6.13-rc5
From
Date
On Fri, 2005-08-05 at 19:38 +0200, Bodo Eggert wrote:
> On Fri, 5 Aug 2005, Benjamin Herrenschmidt wrote:
>
> > On Fri, 2005-08-05 at 00:03 +0200, Bodo Eggert wrote:
> > > My CRT is out of sync after radeonfb from 2.6.13-rc5 is initialized.
> > > 2.6.12 does not show this behaviour.
> >
> > I'm out of town at the moment, could you maybe diff radeonfb between
> > working & non-working and CC me the diff ? I don't have my work stuff at
> > hand not my kernel images so...
>
> There were no changes in radeonfb.c, but I could trace to to
> CONFIG_PREEMPT. With _NONE, it works as expected.

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 ?

Ben.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-08-07 10:00    [W:0.069 / U:0.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site