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AE200 Pannie with X800 Pro Graphics 1:1 Pixel matching

Discussion in 'Projectors, Screens & Video Processors' started by Tempest, Aug 27, 2004.

  1. Tempest

    Tempest
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    Perhaps this should be in the HTPC forum, but so many people have chatted about this here in the past I shall try here :thumbsup:

    I have a Pannie AE200 (which I believe used the same 1:1 settings in powerstrip as the AE100 does)

    I also used to be using a Radeon 9600 (non pro) as used by many here, and used the instructions on this web page:

    http://www.avforums.com/frame.html?http://www.avforums.com/forums/forumdisplay.php?forumid=43

    (posted by hoglet)

    I managed to get my old 9600 card to his settings:
    PowerStrip timing parameters:
    856x480=856,40,72,80,480,4,5,11,31500,342



    Now however I have a ATI X800 Pro card, and I'm finding powerstrip just won't lock to these settings.

    I have pasted the above line in, and it's ALMOST there but not quite.

    The thing is, on the projector it LOOKS fine. It looks like 1:1 pixel matching is working ok, but a number of the settings are off from Hoglets ideal parameters and I was wondering if anyone here might know the significance of the particular settings that are not right:

    He says ideally they should be:

    ============================================
    Finally, the timings you should now see (for WIDE480) are:

    Pixel Clock 31.500MHz (or very close)

    Horizontal:
    -- Scan Rate 30.057KHz (or very close)
    -- Active 856 pixels
    -- Front porch 40 pixels
    -- Sync width 72 pixels
    -- Back porch 80 pixels
    -- Total 1048 pixels

    Vertical:
    -- Refresh Rate 60.114Hz (or very close)
    -- Active 480 lines
    -- Front porch 4 lines
    -- Sync width 5 lines
    -- Back porch 11 lines
    -- Total 500 lines

    ============================================

    Mine however are as follows:

    Finally, the timings you should now see (for WIDE480) are:

    Pixel Clock 31.500MHz (or very close)

    Horizontal:
    -- Scan Rate 30.057KHz (correct)
    -- Active 856 pixels (correct)
    -- Front porch 40 pixels (correct)
    -- Sync width 72 pixels (mine is 56 - Quite a bit out)
    -- Back porch 80 pixels (mine is 96 - Quite a bit out)
    -- Total 1048 pixels (correct)

    Vertical:
    -- Refresh Rate 60.114Hz (correct)
    -- Active 480 lines (correct)
    -- Front porch 4 lines (correct)
    -- Sync width 5 lines (correct)
    -- Back porch 11 lines (correct)
    -- Total 500 lines (correct)



    So, it's only the Sync width and Back porch that are wrong on the Horizontal geometry. Not sure why those two changed by themselves on rebooting.

    But it LOOKS ok. I don't know what those 2 settings actually mean in real life (laymans talk)

    Anyone comment please ?

    Many thanks for reading
     
  2. theritz

    theritz
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    Tempest,

    If you use Mark Rejohn's screen (link in the FAQ) or the nokiatest screens (Google is your friend there) you'll see if you're getting true 1:1 (absence of fuzzy lines). Can't comment on the intricacies of front and back porch etc..... all a black art to me..... ;)


    Sean.
     
  3. Tempest

    Tempest
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    Can you post a link please as I can NEVER find stuff in this forum!!!!

    Clicked on the FAQ button at top of page, typed in "Mark Rejohn" and found nothing :(

    Oh yes...
    I have displayed that test pattern thing (the one with individual pixels black and white) (linked in hoglets post) and that's solid.
     
  4. Tempest

    Tempest
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