X Window System Architecture

[Alan Hourihane]

Right. But your mileage may vary. Because VESA needs the video BIOS and
it's not been widely tested in multi-card setups.

So it may not work very well, depending on the cards chosen. And I've no
idea what would or wouldn't work well. 

Alan.

On Wed, 2008-07-16 at 16:06 +0530, Deepak Bhatia wrote:
> Dear Alan,
> 
> That means if we have two display cards then we can have multimonitor
> using Vesa driver for each of those cards.
> 
> Best Regards
> 
> Deepak Bhatia 
> 
> -----Original Message-----
> From: Alan Hourihane [mailto:alanh at fairlite.demon.co.uk] 
> Sent: Wednesday, July 16, 2008 4:02 PM
> To: Deepak Bhatia
> Cc: Daniel Stone
> Subject: Re: X Window System Architecture
> 
> Xinerama simulates multimonitor configurations on single cards.
> 
> The trouble is the VESA driver doesn't know how to control the second
> head of a single graphics chip.
> 
> Alan.
> 
> On Mon, 2008-07-14 at 19:47 +0530, Deepak Bhatia wrote:
> > Dear Alan,
> > 
> >  
> > 
> > As per X11R7.1, we have to enable Xinerama to achieve the multimonitor
> > using specific driver of the hardware display card present.
> > 
> >  
> > 
> > But as per earlier mails, the driver need to have multimonitor
> > capababilities, so we are no sure what is the role of the xinerama ?
> > 
> >  
> > 
> > Also in X11R7.3, the xrandr1.2 has replaced xinerama to achieve the
> > multimonitor functionality. Then we are not sure of the role of
> > drivers to achieve the same ?
> > 
> >  
> > 
> > I hope you understand my question. I have not put my question to Xorg
> > community because as my mails are going through the moderator (which I
> > believe is very tough decision on Xorg).
> > 
> >  
> > 
> > Best Regards
> > 
> >  
> > 
> > Deepak Bhatia
> > 
> > 
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