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Dual Head eCs 2.0 using Matrox MGA-G450 -- How to?

Started by klipp, 2009.12.12, 22:07:23

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klipp

Yes Rob it does but only for the Primary Display--no way will it configure the Secondary display as it cannot access the .dsp file it wants. I would think it would want the same one that the primary display is using, but that option is not repeated when trying to configure the Secondary display.

thanks  klipp
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rklipp@megared.net.mx
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RobertM

Quote from: klipp on 2009.12.15, 21:04:26
Yes Rob it does but only for the Primary Display--no way will it configure the Secondary display as it cannot access the .dsp file it wants. I would think it would want the same one that the primary display is using, but that option is not repeated when trying to configure the Secondary display.

thanks  klipp

Lemme dig through the readme and a few other things online and see what I can find. On other systems, the secondary display was for a VIO output device (Monochrome adapter) and some weird combinations of other video adapters (two separate adapters) that did not share address ranges.

I'm wondering if that is the wrong setting/option to use....


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Kirk's 5 Year Mission Continues at:
Star Trek New Voyages
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Andi

Probably it is different handled by the matrox driver, but if you're using SNAP there is a checkbox in the screen settings for Dual-display on/off and where you want to have the second display to extend your desktop (left/right or up/down). Then all you need to do is expand your screen resolution on the first page from f.i. 1024x768 to 2048x768 and reboot. Isn't there a hint in the matrox driver documentation how to enable dual-display?

I tend to believe you are trying to install a second adapter (which I never tried with OS/2 - eCS) instead to convince the currently installed driver to activate the second output.

magog

Dual Head is only possible with the SNAP driver and it's only possible with the cards listed in the SciTech SNAP readme.txt file. The original Matrox driver doesn't support it and also none of all the other drivers ...except for a driver for an "ELSA Winner 2000/OFFICE" graphic card which should allow this.
The default setup options for "Primary" and "Secondary" display of OS/2 have nothing to do with the dual head support you want.

For SNAP the IBM or standard release might not allow to enable dual head. I think you need the "pro" version. The key for that one has been released a while back after SciTech cancelled future work on SNAP and began to sell the technology.

Other restrictions of the DualHead Mode have been listed by Andi (same resolution,...).

One other thing is the Clone-Mode. This is determined by the BIOS of the card and turned on by default most of the time. For example the ATI X800 or X1950 and also HD4870 display the content of the first screen output also on the second one....as defined by the BIOS.
Regards,
Juergen
*** Java Movie Database - http://www.jmdb.de/

klipp

Well, magog and andi, you've resolved the problem! I'd tried using SNAP before but never had the common sense to use an expanded screen resolution. I'm using 1280x960 (there is no 2048x768 option in Snap) and it works beautifully!
   I've found no available information from Matrox on how to use their drivers with dual monitors --- But SNAP solves this problem incredabley well. And magog, as you said the clone mode works like you described on this Matrox G450 32mb Video Adapter card also.
  Thanks to all of you for bailing me out on this problem and hope you're advice helps others who have the same needs as I do.

klipp
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Windoz Free! eCS 2.0 serving Linux, Windoz & OS2
rklipp@megared.net.mx
********************************************************************

RobertM

Sorry klipp... I shoulda known that. I even made a post about such things regarding dual head a couple years ago... I'll blame either senility or lack of coffee or both...

Thanks magog for the clarification and the memory refresher...

...off for some more coffee.

Best,
Rob


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Kirk's 5 Year Mission Continues at:
Star Trek New Voyages
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klipp

I envy you Rob, my only excuse is stupidity! Thanks for helping!

klipp
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Windoz Free! eCS 2.0 serving Linux, Windoz & OS2
rklipp@megared.net.mx
********************************************************************

RobertM

Quote from: klipp on 2009.12.16, 23:57:51
I envy you Rob, my only excuse is stupidity! Thanks for helping!

klipp

LoL... inexperience is definitely not stupidity...


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Kirk's 5 Year Mission Continues at:
Star Trek New Voyages
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