i945: can't get triple head to work
keithp at keithp.com
Sat Jul 7 13:57:41 PDT 2007
On Sat, 2007-07-07 at 20:22 +0200, Julien Cristau wrote:
> The hardware has 2 crtcs, so if you want three outputs two of them have
> to share a crtc, which I think means having the same mode. The --crtc
> option might help (or not..). xrandr --verbose shows which outputs
> can be assigned to which crtcs.
Alas, you cannot share the LVDS with any other output, nor can you share
the TV with any other output. So, you're stuck with picking two of the
three outputs in this case. Even if you could share, two of the outputs
would contain precisely the same content, which may not be what was
Btw -- the current xrandr version will actually reassign crtcs to make
things work if possible, so you shouldn't need to use the --crtc option
any longer. If it cannot find a crtc, that means the requested
configuration just isn't supported by the hardware.
keith.packard at intel.com
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