[Bug 76564] [AMD Fusion E-350] HDMI refresh rates doesn't match expectations

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76564

--- Comment #36 from Christian König <deathsimple at vodafone.de> ---
(In reply to comment #35)
> (In reply to comment #34)
> > Why not increase the ref_div? hardware frying? That way you can get the
> > clock exactly right.
> > 
> > For example: 148.5 = 100 * 29.7 / 4 * 5
> >              74.2  = 100 * 37.1 / 5 * 10
> 
> Just noticed that the clock values shown by xrandr are already rounded. So
> the 74.2MHz for 23.976fps actually is 74.17MHz. This would mean the PLL can
> never exactly generate the clock that is requested by the television I guess.
> 
> Perhaps something else is wrong with the PLL then

The PLL is fine, you can't just represent some frequencies 100% correct.

I'm already digging into making more use of the ref divider, just give me some
time to get the algorithem straight.

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