Extended displays for digital signage

[computerpaul]

Hi

We are a software developer, directtv.com.au. We need to connect a single PC or embedded system to two side by side displays, where the video extends across both displays.

Although Windows automatically supports extended monitor mode for windows from simple aps like Word etc, it does not work propery with Media Player and in particular our software.

We think we might try using IEGD to make a custom video config file but we are not sure whether this will work

Has anyone done anything similar to the above?

[Chris_M_Intel]

ComputerPaul,

Extending video (by this I mean things like movies) across two displays will be problematic. The display is part of the pipeline for the media player. If you limit the multiple display option to just one adapter (for example, dual display from a single part) that will eliminate some of the problem. You would also have to figure out how to handle things like overlay of which there is generally only one, and therefore would only work on one of the displays. Protected content would have a hard time with this as well. In general, I don't believe this is something that Windows software can actually do. If you're using a custom-built media-player, didn't use DXVA,and just used the CPU for decode and playback I think you could get it to function, mostly, with a lot of work...

Chris

[ralf__]

Quoting - Fendriss

ComputerPaul,

Extending video (by this I mean things like movies) across two displays will be problematic. The display is part of the pipeline for the media player. If you limit the multiple display option to just one adapter (for example, dual display from a single part) that will eliminate some of the problem. You would also have to figure out how to handle things like overlay of which there is generally only one, and therefore would only work on one of the displays. Protected content would have a hard time with this as well. In general, I don't believe this is something that Windows software can actually do. If you're using a custom-built media-player, didn't use DXVA,and just used the CPU for decode and playback I think you could get it to function, mostly, with a lot of work...

Chris

[ralf__]

Quoting - Fendriss

ComputerPaul,

Extending video (by this I mean things like movies) across two displays will be problematic. The display is part of the pipeline for the media player. If you limit the multiple display option to just one adapter (for example, dual display from a single part) that will eliminate some of the problem. You would also have to figure out how to handle things like overlay of which there is generally only one, and therefore would only work on one of the displays. Protected content would have a hard time with this as well. In general, I don't believe this is something that Windows software can actually do. If you're using a custom-built media-player, didn't use DXVA,and just used the CPU for decode and playback I think you could get it to function, mostly, with a lot of work...

Chris

[ralf__]

Quoting - Fendriss

ComputerPaul,

Extending video (by this I mean things like movies) across two displays will be problematic. The display is part of the pipeline for the media player. If you limit the multiple display option to just one adapter (for example, dual display from a single part) that will eliminate some of the problem. You would also have to figure out how to handle things like overlay of which there is generally only one, and therefore would only work on one of the displays. Protected content would have a hard time with this as well. In general, I don't believe this is something that Windows software can actually do. If you're using a custom-built media-player, didn't use DXVA,and just used the CPU for decode and playback I think you could get it to function, mostly, with a lot of work...

Chris

sorry for all those mis-clicks,what i really want to know is,how to use dual view clone mode output interface in your graphic driver,i've been able to use extend mode by windows API ChangeDisplaySettingsEx but clone mode with(LCD+CRT),can you tell me where can i get the specifications of 945 serial graphic card driver sw manual,3Q.

[delacy__david]

Quoting - ralf__

sorry for all those mis-clicks,what i really want to know is,how to use dual view clone mode output interface in your graphic driver,i've been able to use extend mode by windows API ChangeDisplaySettingsEx but clone mode with(LCD+CRT),can you tell me where can i get the specifications of 945 serial graphic card driver sw manual,3Q.

ChangeDisplaySettingsEx doesnt know what clone mode is
xp doesnt know what clone mode is
intel must have some documents on how to control what clone mode is and how to set it through their CUI
but i havent seen those docs

[delacy__david]

Quoting - beerandcandy

ChangeDisplaySettingsEx doesnt know what clone mode is
xp doesnt know what clone mode is
intel must have some documents on how to control what clone mode is and how to set it through their CUI
but i havent seen those docs

oh and i think fendris is a bad man!!!

[Chuck_De_Sylva]

Quoting - beerandcandy

ChangeDisplaySettingsEx doesnt know what clone mode is
xp doesnt know what clone mode is
intel must have some documents on how to control what clone mode is and how to set it through their CUI
but i havent seen those docs

We're looking into this for you. We're not sure whether or not this is still supported.