[jaws-uk] Re: Disabling Dual-Monitor Support - WAS:Re: Re: jaws and ATI Radeon X550

This is usually card specific and if you are not experiencing problems then it 
is probably not relevant to you yet at least.  Until quite recently dual 
monitor support was quite rare, though obtainable on uipper end video cards.  
Now PCI express has come in as a new expansion bus technology it is, and will 
become far more common issue.
At present these dual head display cards problems for all the DCM based 
accessibility aids becuase when the new breed of graphics cards install they 
provide two graphic controllers to the operating system so they can access the 
same data model within the O/S.

If you have a DCM based accessibility aid such as Jaws, but WindowEyes and 
Zoomtext can also be included here then you need to go into device manager 
under "display adaptors" and disable the secondary controler.

Some may worry about laptops, but those I have encountered so far do not 
provide true dual monitor support in the fashion that causes problems, although 
they may well be capable of driving both internal flat panel and external 
monitor.  Where such machines do exist disable the second controller anyway as 
you will still be able to switch between the displays if you need to but not 
drive them at once. 

As Microsoft oversee the DCM standard in consultation with the screen access 
developers, it will be a move on Microsoft's part to shift things so at least 
screen access products can work in this environment.  I know that at least on 
screen access developer has requested this be fixed.

Regards.

Tristram Llewellyn
Sight and Sound Technology
Technical Support
www.sightandsound.co.uk

  ----- Original Message ----- 
  From: Chipmunks 
  To: jaws-uk@xxxxxxxxxxxxx 
  Sent: Thursday, March 30, 2006 11:01 AM
  Subject: [jaws-uk] Disabling Dual-Monitor Support - WAS:Re: Re: jaws and ATI 
Radeon X550


  this is a new one on me. How do you disable dunal monitor support?

  Cheers,

  Doris


  At 09:16 AM 3/30/2006 +0100, you wrote:
  >This sounds like a very new model, so haven't come accross 
  >it.  However with Jaws 7.0 and above with dual monitor support 
  >disabled it is unlikely to cause problems.  Cards further up the 
  >range like x600 and x800 have not been known to cause problems especially.
  >Regards.
  >
  >Tristram Llewellyn
  >Sight and Sound Technology
  >Technical Support
  >www.sightandsound.co.uk
  >
  >   ----- Original Message -----
  >   From: Graham Page
  >   To: jaws-uk@xxxxxxxxxxxxx
  >   Sent: Wednesday, March 29, 2006 6:20 PM
  >   Subject: [jaws-uk] jaws and ATI Radeon X550
  >
  >
  >   Hi all.
  >   I am about to upgrade my PC and am concerned to make sure that 
  > the graphics card offered will work.
  >   It is a radion X550 with 256MB video ram.
  >   Any problem with this card?  I imagine it will have dual monitor 
  > support so it will be necessary to turn off support tfor the second 
  > monitor.  The card is fitted in the PCI Express slot.
  >   Regards
  >   Graham
  >   Graham Page
  >   Mobile: 07753 607980
  >   Fax:  0870 706 2773
  >   Email:
  >   gpage@xxxxxxxxxxxxxx
  >   MSN:
  >   gabriel_mcbird@xxxxxxxxxxx
  >   Skype: gabriel_mcbird
  >
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