[mythtv-users] Myth frontend on PPC OSX?

Todd Ignasiak ignasiak at gmail.com
Sat Feb 10 03:52:30 UTC 2007

On 2/9/07, Justin Kim <justinlkim at gmail.com> wrote:
> At 12:34 PM -0800 2/9/07, MythTV wrote:
> >Justin,
> >
> >Hmm,  I have an Intel MacMini CoreDuo 1.66GHz that plays HD just fine
> >as long as the screen is set to 1600x1200 or smaller.
> >
> >As I posted in a previous email having a screen that is greater than
> >1600x1200 caused problems for me.  I believe it has something to do
> >with shared memory for the video and not a processor speed problem.
> >I was able to test with a 2GHz CoreDuo MacMini and it still stuttered
> >when it tried to play HD a 1080i resolution screen.
> >
> >Mino
> Mino,
> Unfortunately my TV doesn't do 720, so I'm stuck with either 480p or
> 1080i.  I haven't been able to get SwitchresX to work on my Mini, but
> since the problem seems to be processor speed, I'm not sure a scaled
> 720i res would fix my problems.
> I have a gig of memory on my Mini, so I'm not sure if my problem is
> memory related.  Also, since I can get steady video by turning off
> the video scaling pref in the front end, I tend to think it's a
> processor speed issue.

My 1.66GHz core duo Mini handles HD video fine.   But, I'm displaying
on a 720P DLP TV.

I don't think the video scaling is a CPU operation, I think that's a
function of the GPU and the overlay it's drawn to.    I have seen
other reports of this stuttering, when scaling 480i on a 1080p
display.  But, I don't know if they found a workaround.

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