[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 #41 from jeroen <jeroenk61 at hotmail.com> ---
(In reply to comment #40)
> If you set "sync playback to display" in XBMC, an inaccurate clock has no
> impact on dropped or skipped frames. Suppose you only have a 24Hz mode and
> play material which is 23.976. It would slightly speed up playback: every
> vblank interval a frame is rendered.
> If you observe skipped frames, the render thread may have been blocked too
> long or a vertical retrace was missed.

Hello FernetMenta,

Thanks for commenting, as you are one of the experts on this subject in XBMC.

"sync playback to display" is definately enabled on my system and still I am
seeing skipped or missed frames depending on if the clock is too slow or too
fast, respectively.
Also, the patches from Christian already proved that a clock that is closer to
the television display clock DOES have an influence on skipping/missing frames.
If the clock had no impact there wouldn't be a problem in the first place.

The posted xrandr logs also show my television does have a 23.976 mode.

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