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Outputting From Pc 1080p To 1080p Panel... Yet It Overscans


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Why so? digital all the way, so clearly no need to overscan, and why oh why did nvidea scrap their overscan slider in their new drivers?

at 1900x1080 i lose about 10-15% ... this knocks out most of the task bar and a row of icons on the side.

Win XP, 6600gt, DVI -> HDMI, 42" schaub lorenz

any ideas? Ta

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There is still a need for overscan with digital, just not as much as with old systems.

If it’s a TV it must overscan by design, if it did not the manufactures would be flooded with customer complaints.

10-15% is certainly too much, 5% is more typical these days.

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Yeah its still always going to overscan at this stage.

Im outputting 1920x1080 to my 1080p display and still get overscan.

And if i use a resolution thats too small for the screen (rather than an overscan corrected resolution) but is still in the "ballpark" of 1920x1080 (so the TV still operates in '1080p mode') you actually see errors on the edge of the picture.

Like teh menu's in Vista MCE for instance are slightly smaller than the video, so you get annoying flickers at the edge, and some of the WMVHD stuff has bright lines right on the edge which are annoying as well.

So overscan isnt necessarily a bad thing.

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Sam, I was the one that posted that the old DVI input maxs out at 1366, however I have since upgraded to the MkII Schaub. in the first post I state I am using the DVI -> HDMI cable.

Omega, The flickering on the edges you see during video can easily be overscanned via the nvidia (or ati) drivers under 'video overlay'

My issue however is that it overscans the desktop itself. Silly.

Currently running at 1792x998... it fits the panel perfectly however I'm frustrated that I am still yet to see true 1080p after investing all this money.

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Sam, I was the one that posted that the old DVI input maxs out at 1366, however I have since upgraded to the MkII Schaub. in the first post I state I am using the DVI -> HDMI cable.

Omega, The flickering on the edges you see during video can easily be overscanned via the nvidia (or ati) drivers under 'video overlay'

My issue however is that it overscans the desktop itself. Silly.

Currently running at 1792x998... it fits the panel perfectly however I'm frustrated that I am still yet to see true 1080p after investing all this money.

Yeah but not in Vista (yet), the drivers dont have support for the overscan correction feature that ive seen, and it was just an example of when overscan is a good thing.

Just to clarify your situation though...1792x998 gives you a desktop image JUST escapes cropping by overscan....and 1920x1080 gives you a desktop image that is heavily overscanned correct?

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yes that is exactly correct.

The PC gave me an overscan option (doesn't work) and an underscan option. The underscan option reduces the resolution to the exact pixel amount that will fit the panel. I don't know where the PC got this information as I don't think DVI transports such info, and its recognised as a plug and play monitor, but it's running at 1798 x 998 and goes perfectly to the edge.

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Templar, please tell me more of this function? It's on the panel itself?

How does it get such information, and via what cable?

1:1 is an option in the panel firmware. Some panels have it, others don't, so what happens on the Bravia X, Teac, and Toshiba displays may be of no help with your panel if the firmware doesn't support it.

In the previously mentioned Acer thread you will see that forum members were able to override the firmware's lack of direct 1:1 support. Such tricks may work, but there are some?/many? panels for which 1:1 is an intractable problem (e.g. the BenQ 37" IIRC).

Monitor Asset Manager 1.26 can give you some insights into how the panel's inputs (VGA/DVI/HDMI) have been set up.

Adrian

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