How is Native Resolution Determined?

[Steve]

Does anyone know how the HR20 determines Native Res for a particular channel? Does it cycle through different resolutions until it finds the right one? Or does it run some kind of "resolution chack" first?

If either of the above is true, maybe the HR20 can be programmed to "cache" each channel's resolution, once determined, so future channel changes might be quicker. Just a thought. /s

[veryoldschool]

Does anyone know how the HR20 determines Native Res for a particular channel? Does it cycle through different resolutions until it finds the right one? Or does it run some kind of "resolution check" first?

If either of the above is true, maybe the HR20 can be programmed to "cache" each channel's resolution, once determined, so future channel changes might be quicker. Just a thought. /s
I think it's just like your TV, it reads the data stream. I'm not sure caching would help, at it would need to "look up" and read as opposed to "reading".

[Steve]

If it gets it from the data stream, I agree with you. Based on the front panel resolution light activity when changing channels, it just seemed to me that some sort of calculation might be taking place inside the HR20, and I thought a quick cache look-up might be a way to avoid that. /s

[PoitNarf]

Does channel changing take about the same amount of time with both component and HDMI? I had attributed part of the channel changing delays to the HDMI handshaking going on telling the TV what resolution to switch too.

[harsh]

Does anyone know how the HR20 determines Native Res for a particular channel? Does it cycle through different resolutions until it finds the right one? Or does it run some kind of "resolution chack" first?There are identifying markers in the program material.

[Steve]

Does channel changing take about the same amount of time with both component and HDMI? I had attributed part of the channel changing delays to the HDMI handshaking going on telling the TV what resolution to switch too.No. I've got two Panny 42" hooked up, one via component and one via HDMI. Change time is the same. The HDMI handshaking must be subsumed by whatever else causes the delay. /s

[Steve]

There are identifying markers in the program material.Well then, as VOS suggests, caching would probably make no difference. It was just a thought! :) /s

[veryoldschool]

Well then, as VOS suggests, caching would probably make no difference. It was just a thought! :) /s
Keep them coming...:)

[Steve]

Keep them coming...:)Looks like you're coming up on a milestone post, btw! :) /s

[veryoldschool]

Do you mean this one is 5,001 in less than 5 months?

[Steve Robertson]

Do you mean this one is 5,001 in less than 5 months?

Now that is sick:rolleyes:

[Steve]

Do you mean this one is 5,001 in less than 5 months?

:gott: And I thought I was chatty, at just over 2 posts a day! /s

[veryoldschool]

:gott: And I thought I was chatty, at just over 2 posts a day! /s
You know, if D* & their installer would ever get their acts together...I'd be bored. :lol:

[Supervolcano]

Getting back to the topic here....

If the resolution is read from the datastream, then why must the HR20 send the various resolution changes to the television screen, instead of doing the work inside the HR20 and only sending the correct resolution to it the first time every time?

Let me put that another way....
I use component connections to my lcd-hdtv. With native on, when I switch channels, my tv screen "freaks out" with up to 3 wild pattern flashes until it locks on the channel's resolution.

[Steve]

Getting back to the topic here....

If the resolution is read from the datastream, then why must the HR20 send the various resolution changes to the television screen, instead of doing the work inside the HR20 and only sending the correct resolution to it the first time every time?

Let me put that another way....
I use component connections to my lcd-hdtv. With native on, when I switch channels, my tv screen "freaks out" with up to 3 wild pattern flashes until it locks on the channel's resolution.Hence my original thought. Sometimes if I tune from a 720p channel to another 720p channel (72 to 88, e.g), I'll see the front panel light switch briefly to 1080i before it settles back on 720p. Other times, the 720p light stays lit during the change. I can't make it happen consistently one way or the other, however. /s

[tonyd79]

I don't see this light flashing activity. I went native mode with this weekend's CE. What version are you running, Steve?

[Steve]

I don't see this light flashing activity. I went native mode with this weekend's CE. What version are you running, Steve?The 0158 CE. As I mentioned, it seems to happen randomly. /s

[veryoldschool]

The 0158 CE. As I mentioned, it seems to happen randomly. /s
This has been "around" for a while. "which way did they go..which way did they go..Oh, they went that a way>>>>":)