[ltp] Simultaneous display on LCD and External monitor with ThinkPad R50?

[Alex Deucher]

On Mon, 15 Nov 2004 08:07:38 +1100, Luke Yelavich <themuso@themuso.com> wrote:
> On Mon, Nov 15, 2004 at 06:54:03AM EST, Alex Deucher wrote:
> 
> 
> > On Sun, 14 Nov 2004 22:51:41 +1100, Luke Yelavich <themuso@themuso.com> wrote:
> > > Just wondering how I go about getting simultaneous display on a ThinkPad
> > > R50? The monitor will be conencted via the standard VGA port, in fact it
> > > will be a projector.
> >
> > if you are using xorg 6.8.x turn off mergedfb (option "mergedfb"
> > "false").  this will cause crtc1 to drive both outputs.  if you want
> > separate resolution and/or refresh rate on the lcd and vga port then
> > you'll need to set up mergedfb clone mode and probably enter the hsync
> > and vrefresh for the projector in your config.  see the radeon man
> > page.
> 
> Would this also apply for XFree86?

sort of... xfree86 had it's own clone mode (not mergedfb) that's on by
default.  you may have to turn it off.  check your radeon man page.

Alex

> 
> Luke
> k