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Native issue

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by stblake10, Mar 28, 2007.

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  1. stblake10

    stblake10 Godfather

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    I have an issue that has plagued my HR20, and that is the native on/off. I have a tv that does not support 720p (mitsubishi 42" rear projection 1080i set). When I select the resolution (480i, 480p & 1080i) and have native on the SD channels are distorted, wavy like. However when I onyl select 1080i and keep native on, the SD channels are fine. Also if I change native off and keep the resolutions checked as noted above it works. There is something I am not doing right to not get it to work. My tv is set to "standard" for format and the box is set to pillar box. Any help that can be given would be greatly appreciated. I am at work right now, so when I get home I will play around again.
     
  2. Stuart Sweet

    Stuart Sweet The Shadow Knows!

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    It sounds like your TV is having problem displaying 480i. Try turning 480i off and see if the SD channels display properly.
     
  3. stblake10

    stblake10 Godfather

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    Oh, ok I'll try it when I go home. If the tv is having problems possible with 480i, then why did it not have the issue before when all I had was the TIVO box which only does 480i. I am assuming that the interlacing between the box and the tv at the 480i resolution is the issue.
     
  4. islesfan

    islesfan Hall Of Fame

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    I have a very similar 55" Mitsubishi, and no 720p. I just leave it in Native, but with only 1080i checked. I haven't seen the problems you mention when I have had 480p checked (I never left 480i checked because if I am going to have it interlaced, I might as well have it upscaled as well. Anyway, I turned that back off after seeing the channel change times. With each national release, I try turning it back on, but having to wait nearly 10 seconds for the channel to settle down on a resolution is not worth the minor improvement of 480p over 480 upscaled to 1080i.
     
  5. Stuart Sweet

    Stuart Sweet The Shadow Knows!

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    Difference between 480i over component/HDMI and 480i over composite/S-Video? Just guessing. Also I suggest that if you are using HDMI you try component and see if you have the same issue.
     
  6. stblake10

    stblake10 Godfather

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    Sounds like a good idea. I'll try the component cables. I am running HDMI to DVI, not that it makes a difference. This is my first creation of a thread and the response from everyone is GREAT.
     
  7. Stuart Sweet

    Stuart Sweet The Shadow Knows!

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    Welcome to the world of DBSTalk!

    Let us all know how it works out for you.
     
  8. stblake10

    stblake10 Godfather

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    I will :)
     
  9. stblake10

    stblake10 Godfather

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    Well I tried the component video over HDMI and it worked. The native set "on" with all resolutions checked off worked for my tv on component video. When I switched back to HDMI it for some reason will not support 480i, 480p & 720p with the tv I have. Here is the odd thing though, 720p will not work with the HDMI to DVI connection. But it will for component video. I am wondering if this is an HR20 issue. Anyone have any thoughts. And maybe the techs should see this thread.
     
  10. stblake10

    stblake10 Godfather

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    Can someone take a look at my previous message.
     
  11. houskamp

    houskamp New Member

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    Problably your tv doesn't support the othe res under HDMI.. common problem..
     
  12. stblake10

    stblake10 Godfather

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    Well that might explain it then. My tv does support DVI and component. Well the tv does support all of those resolutions under DVI and component video.
     
  13. harsh

    harsh Beware the Attack Basset

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    If your TV doesn't do 720p, you have no business using native mode. Set it for 1080i and enjoy.
     
  14. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    HDMI has had some issues, where 480p was needed instead of 480i.
    If your TV works for "all" resolutions [some don't either 1080 or 720], then either it is a HDMI incompatibility issue with your TV or it is just with one resolution [480i needing to be 480p]. FWIW
     
  15. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I would make the change: use 480 i/p and 1080i by selecting these in the receiver's setup menu for TV resolutions. Then you can use native on/off.
     
  16. stblake10

    stblake10 Godfather

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    Thanks for the advice. I think I will choose native off and set the resolution to 1080i. It's my assumption that the scaler on the box is doing a better job than the tv's scaler.
     
  17. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I think that would depend on the TV wouldn't it?
     
  18. azelesko

    azelesko Cool Member

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    This is what has worked best for me as well. I have a similar Mitsu 55 inch that does 1080i but not 720p. My picture on SD is good enough and much better than Comcast with the same settings.
     
  19. stblake10

    stblake10 Godfather

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    I think for right now I am going to leave native off and set the resolution to 1080i. The tv being a rear projection and almost 4 years old from what I can see does'nt scale the picture good enough so I am going to use the HR20 scaler instead. I am just waiting to afford the Panasonic 42" th42px75u, the new all black plasma for $1600 at Best Buy. Which is where I work in the Home Theater dept in the Magnolia room.
     
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