intel: lvds-pipe shared with another output?
Simon Pasch
fpasch at googlemail.com
Tue May 13 08:43:47 PDT 2008
Hello,
We want to use an intel 945gm in a slightly unusual setup here (it's
for an embedded device):
Output 1 should be displayed over LVDS and TMDS-1
Output 2 (right of Output 1) should be displayed over a second
SDVO-Chip (named Unknown-2 in driver, but seems to work
out-of-the-box)
We have successfully used intel-driver 2.3.1 for displaying one single
output on all screens simultaneously. Displaying two different outputs
over TMDS-1 and Unknown-2 was successful only if we disabled
lvds-output first. But we didn't managed to get it working in the
above mentioned way.
So the question is:
Is it possible to share the LVDS-pipe (named "1" by xrandr) with
another output (for example TMDS-1, which claims to be usable over
pipe 0 and 1)?
And, by the way, can LVDS only be used over Pipe 1 because of
hardware-limitations. or is it only driver-related? I've seen the
following code in i830_lvds.c:
if (intel_crtc->pipe == 0) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Can't support LVDS on pipe A\n");
return FALSE;
}
Greets
Simon
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