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On Tuesday 19 Jul 2011 20:41:08 Grant wrote: |
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> > --snip-- |
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> > |
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> >>> The TV is an LG 47LH90 and and it is said to do 1080p. I looked for |
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> >>> ghosting in 16:9 mode instead of Just Scan mode and strangely the |
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> >>> shadows are there, but they're oriented top and bottom instead of left |
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> >>> and right. I can take another photo if anyone would like to see. |
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> >>> |
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> >>> Why do I need to select Just Scan in order to prevent all 4 edges of |
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> >>> the screen from being cut off? |
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> >>> |
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> >>> - Grant |
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> >> |
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> >> BTW I think you're on to something Stroller because the overall |
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> >> picture is definitely improved in 16:9 mode compared to Just Scan |
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> >> mode. I just need to figure out how to prevent the edges of the |
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> >> screen from being cut off. |
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> >> |
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> >> - Grant |
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> > |
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> > Grant, |
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> > |
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> > By default most TVs overscan inputs due to broadcast signals at the |
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> > edges as the picture there is not well defined and can have white |
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> > overscan lines and such. The TV compensates by overscanning which |
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> > basically zooms in on the picture making (on my 46" Samsung TV) the |
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> > outer 1-1.5" of the picture disappear. |
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> > |
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> > On my TV it was fairly simple to turn this off, I just had to label the |
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> > HDMI input as "DVI PC" and it automatically turned off any picture |
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> > processing/overscanning. Yours may be similar. |
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> > |
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> > Sorry if there's typos, I have a bandaged finger and it's a PITA to type |
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> > with. I think I fixed all of them. |
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> > |
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> > Dan |
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> |
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> I found this: |
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> |
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> "We recommend using the Just Scan mode with 1080i and 1080p material, |
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> which assures zero overscan and proper 1:1 pixel matching for this |
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> 1080p display." |
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> |
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> http://reviews.cnet.com/flat-panel-tvs/lg-47lh90/4505-6482_7-33485570.html# |
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> reviewPage1 |
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> |
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> Just Scan is what I've always used which has the ghosting problem. I |
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> think I'm back to square one. |
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|
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Just a thought: have you approached the OEM for the TV? If you could get to |
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some technical department they would hopefully advise if this is a setting or |
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hardware issue. |
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|
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-- |
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Regards, |
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Mick |
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