[mythtv-users] Myth frontend on PPC OSX?
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:
> >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.
> 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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