HTPC: 1080p/24 and refresh rate - Blu-ray Forum

MaxBD · 03-20-2011, 05:09 PM

I use an HTPC as my BD player:

CPU: Q6600
GPU: AMD 5850 (Catalyst 11.2)
RAM: 8GB
BD: LiteOn iHES206
OS: Win7 Ultimate x64
Player: PowerDVD 10 Ultra MarkII (with latest patch)
TV: LG 42LG50

I'm a bit confused on the whole 24p issue. I searched several forums looking for a "best practices" guide on this topic, but I got conflicting opinions.

I think my TV is 24p capable because if I set the refresh rate on the HTPC to 24Hz, the TV info panel reports 1080/24p instead of the usual 1080/60p. Also, when the refresh is set to 24Hz, the mouse pointer is not as smooth as usual. This, I think, means that the TV is actually handling the 24Hz correctly.

At 24Hz, playing back videos from BD works well for the most part, but from time to time I notice some stuttering for a second or two. Nothing major, but it's a bit annoying.

At 60Hz, the stutter seems to happen less frequently, but it's still there. Bottom line I'm not sure what is causing this because I'm sure my HTPC has enough "horse power" to handle BD playback without breaking a sweat, so I suspect the problem must be software (PowerDVD, drivers, pulldown/interlacing settings).

Any suggestion is welcome. Thanks.

03-20-2011, 05:09 PM	#1
MaxBD Member Member since:Mar 2011 Location:Ottawa, Canada Blu-ray collection:107	HTPC: 1080p/24 and refresh rate I use an HTPC as my BD player: CPU: Q6600 GPU: AMD 5850 (Catalyst 11.2) RAM: 8GB BD: LiteOn iHES206 OS: Win7 Ultimate x64 Player: PowerDVD 10 Ultra MarkII (with latest patch) TV: LG 42LG50 I'm a bit confused on the whole 24p issue. I searched several forums looking for a "best practices" guide on this topic, but I got conflicting opinions. I think my TV is 24p capable because if I set the refresh rate on the HTPC to 24Hz, the TV info panel reports 1080/24p instead of the usual 1080/60p. Also, when the refresh is set to 24Hz, the mouse pointer is not as smooth as usual. This, I think, means that the TV is actually handling the 24Hz correctly. At 24Hz, playing back videos from BD works well for the most part, but from time to time I notice some stuttering for a second or two. Nothing major, but it's a bit annoying. At 60Hz, the stutter seems to happen less frequently, but it's still there. Bottom line I'm not sure what is causing this because I'm sure my HTPC has enough "horse power" to handle BD playback without breaking a sweat, so I suspect the problem must be software (PowerDVD, drivers, pulldown/interlacing settings). Any suggestion is welcome. Thanks.

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