[ltp] Dual monitor setup: T40p+XFree-4.3.0

Paul Kaplan linux-thinkpad@linux-thinkpad.org
Fri, 7 Nov 2003 07:34:25 -0400

The card is a Radeon 7500 w/ 32Mb of vram.  According to IBM it supports 
2048x1532 output, twice the size of the internal panel.  Windows does not 
indicate that two screens are available (all I can do is set the same output 
to display on one or both screens), but I'm not convinced that there's not a 
setting required to activate it.  Any other way to determine whether multiple 
FB are possible?

I would be happy to setup X either to output different content to two 
monitors, or to have a single desktop that spans both monitors.  But from 
your comments it sounds like I'm more likely to have only the latter option.


On Thursday 06 November 2003 11:16 am, Klaus Weidner wrote:
> On Thu, Nov 06, 2003 at 08:20:40AM -0400, Paul Kaplan wrote:
> > If I understand correctly, you are able to get different content on the
> > internal and external monitor with only one physical video card.
> This of course requires that your video card can handle this, it can't
> magically change the output if the video hardware has only a single
> framebuffer and DAC :-)
> The Radeon cards in newish Thinkpads can display two independent images.
> If in doubt, take a look at the Windows video driver settings to see if
> that offers multiple desktop support.
> -Klaus