> > I am using an Add2 card with a CH7021 on SDVO-B (component output =
> CVBS) and a CH7307 for DVI-D on SDVO-C.
>
> CVBS is composite output, component is YPrPb.
You are absolutely right. Should have read my e-mail once more before sending
;)
> > Launching X with a VGA monitor connected to the Mobo and a plain old TV
> set to the Add2's CVBS, the TV gets no signal.
> >
> > In the Xorg.0.log, I got:
> >
> > (WW) intel(0): SDVOB: Unknown SDVO output type (0x0400)
>
> Interesting, this looks violate SDVO spec. As device shouldn't have xxxx1
> output
> unless it has xxxx0 output, and only one TV output, so 0x0400 (CVBS1)
> should always
> be invalid. But real hw vendor could possibly break this as your case.
>
Actually, because the code to dump the flag in case of unknown type is not
little-endian friendly, an unknown type of 0x0400 in the log actually means
0x0040 which is really CVBS0. There might not be any SDVO spec violation after
all.
memcpy (bytes, &flag, 2);
xf86DrvMsg(intel_output->pI2CBus->scrnIndex, X_WARNING,
"%s: Unknown SDVO output type (0x%02x%02x)\n",
SDVO_NAME(dev_priv),
bytes[0], bytes[1]);
> >
> > In i830_sdvo.c, function i830_sdvo_output_setup, it seems that the cases
> with flag = SDVO_OUTPUT_CVBS0 or SDVO_OUTPUT_CVBS1 or SDVO_OUTPUT_SVID1
> are not handled.
> >
> > Feel free to integrate it. (Should I be entering this into Bugzilla?)
> >
>
> Looks ok to me, except it's not in diff format.
> Anyway I'll try to integrate it. Thanks.
>
I will post a patch for CVBS0 in the right format at
http://bugs.freedesktop.org/show_bug.cgi?id=20947
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