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Slow Channel Change

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by gandolf67, Aug 10, 2007.

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  1. gandolf67

    gandolf67 New Member

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    Aug 10, 2007
    Just upgraded to the HR20 this past weekend. So far I'm pleased. I have not tried to record yet so I can't comment on that. I have the latest firmware installed. My only complaint is the time it takes to change a channel. When the box was first installed it seemed decent, but now 5 days later it really seems slow. I seems like when I change the channel the screen will go to black, then light gray, then back to black then the show will come on. Is this the way the HR20 works, or did something happen to my box??

    Thanks,
    Chris
     
  2. vegasflyby

    vegasflyby AllStar

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    If "native" is turned on in your display setting you should turn if off.
     
  3. Stuart Sweet

    Stuart Sweet The Shadow Knows!

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    Agreed. Channel change time can be slower than what you're used to if you upgraded from an SD-only receiver, but if you have Native On then it can be taking several seconds more.

    It's possible it's not getting slower, but you're noticing it more.
     
  4. Chuck W

    Chuck W Icon

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    While native will slow it down, a lot of how slow native mode is, is based on how fast your TV can switch it's resolution. Some TV's are just slow in doing this, so that's why some have serious issues with it. My TV is fairly fast and thus I leave native on and don't really have an issue with the speed.
     
  5. Michael D'Angelo

    Michael D'Angelo Lifetime Achiever

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    I have native on. When I was using component cables channel changing was not bad at all. Last week I upgraded my TV and now have my HR20 hooked up HDMI and it is much slower. Hopefully DIRECTV is working on fixing this.
     
  6. Steve Robertson

    Steve Robertson Hall Of Fame

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    I guess I have gotten use to it it really doesn't bother me anymore but I really don't watch much live tv either. Now when football starts I may have an issue however I notice when I switch channels that have the same resolution it goes much faster
     
  7. Coffey77

    Coffey77 Cutting Edge: ECHELON '07

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    :welcome_s to the Forum and a many happy posts! :)

    I too would say it's something you'll have to get used to. They are still working on it and it's come a long way as far as quickness goes but it's got it's limitations - part of which are the resolutions of your TV and how fast it changes.
     
  8. bakers12

    bakers12 ΔS > 0

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    Gandolf, what make and model TV are you using?
     
  9. BuckeyeNut

    BuckeyeNut Legend

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    Channel change time is the worst issue for me.
    It HAS NOT gotten any better in the past 8 months I've had the unit.
    And that's with Native OFF.

    I don't watch a whole lot of live T.V. myself, but when I do it drives me off the end.:mad:
     
  10. gandolf67

    gandolf67 New Member

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    Aug 10, 2007
    It's a Panasonic TH-58PX60U.

    I did upgrade from the SD box. I'll check the native setting tonight after work. But I'm sure it didn't seem taht slow a few days ago, or maybe I was to excited to notice.

    Thanks,
    Chris
     
  11. armophob

    armophob Difficulty Concen........

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    +1
    I think I have just grown used to it. If it helps to ease the frustration, I have trained myself to keep my eye on the little blue power indicator. If it flashes I know the command has been received. The guide delay can be more frustrating while using channel up and down.
     
  12. wolfonthehill

    wolfonthehill AllStar

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    I tried for about 2 minutes to turn Native on, but the channel change delay made it simply not an option. It's a bit slow when turned off, but absolutely unacceptable when on.
     
  13. bakers12

    bakers12 ΔS > 0

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    The native resolution on that set is 1366 x 768. As a test, try selecting only 720p resolution and native off at the HR20. If the picture quality on various channels is OK, this should speed up channel changes.

    It could reduce picture quality, though, so you'll have to decide if there is a trade-off.
     
  14. M3 Pete

    M3 Pete AllStar

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    Jul 24, 2007
    I've had my HR20 less than a week, and have not had much time to play with it.

    I have native off, and the delay and picture changes are just as gandolf described. I have a 720p set, Samsung HLP5674W. There was no such delay with my old RCA HD receiver (not a DVR). Pretty annoying.
     
  15. bakers12

    bakers12 ΔS > 0

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    Have you turned off all resolutions except 720p? Since this is the only resolution your set will support internally (same as my Sammy DLP) you might as well make it the only choice.
     
  16. M3 Pete

    M3 Pete AllStar

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    Jul 24, 2007
    I forgot about this thread. Yes, I'm running 720p only. Haven't even tried 1080i.

    I know that 720p is the TV's native resolution, but it should display 1080i if I turn the HR20 to Native on, right?

    As for the slow switching, somebody suggested it is due to HDMI, which requires handshaking and some other stuff. My old RCA HD receiver was DVI.
     
  17. EaglePC

    EaglePC Icon

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    Apr 14, 2007
    Slow Channel Change
    Same here with a lag like dead batteries in remote.
    batteries are ok though ?
     
  18. Joe A

    Joe A New Member

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    Jul 9, 2007
    My understanding of the issue is as follows:

    When you change DVR channels with an HDMI connection, all devices in the signal path have to renegotiate the HDMI "handshake". This is really an HDMI design flaw but thems the rules. The handshake can take a significant amount of time. (seconds, not minutes:) )

    Use a component connection to avoid the HDMI handshake. Other than potential wiring issues, there is no advantage to using HDMI from a DVR. Component picture quality should be just as good unless something is broken or incorrectly set. HDMI PQ should be better than component with BluRay and HD-DVD players & they only have to "handshake" once when the disk is loaded.
     
  19. CCarncross

    CCarncross Hall Of Fame

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    Channel changes where a digital handshake needs to take place will always take longer. There is no inherent "fix" for this, BMoreRavens, with all your "time" in here, I'd think you of all people would know this already...
     
  20. Marvin

    Marvin Godfather

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    On my 100, after the update the other night the channel changes have become really long. It was not even noticable before and now its like 5 seconds with the occasional channel not coming in at all (stays on black screen) and if I change the channel and go back to the same channel it comes in fine after about 5 seconds. Im using component on a 1080i tv with 1080i selected and native off.
     
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