On Tue, 2010-03-16 at 10:56 -0400, Alex Deucher wrote:
> 2010/3/16 Michel Dänzer <mic...@daenzer.net>:
> >
> > Commit 96a4c8d50de20da865296a380b996f73204d6b34 ('drm/radeon/kms: fix
> > i2c prescale calc on older radeons') breaks LVDS on my RV350 PowerBook
> > again. Reverting just that commit on top of drm-radeon-testing commit
> > 589468458fa964c2020e23e4d9353be2ef8bd3be fixes it.
> >
>
> Do any of the suggestions on bug 26430 help?
> http://bugs.freedesktop.org/show_bug.cgi?id=26430
I've tried i2c_clock = 50/10/100 and m = loop - 1, no luck. I also added
debugging output to verify that sclk seems sane the calculations seem to
take effect as expected:
[ 59.138772] [drm] sclk=44550
[ 59.138775] [drm] nm=2227
[ 59.138779] [drm] loop=48 n=47 m=46 => prescale=0x00002f2e
So, did that commit actually fix anything? :} It regresses at least for
me and doesn't seem to help for the bug it claims it 'should fix'...
--
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