CVT reduced blanking.
benh at kernel.crashing.org
Mon Dec 26 21:21:03 PST 2005
On Tue, 2005-12-27 at 03:24 +0100, Luc Verhaegen wrote:
> DVI connected CRTs do exist. They're rare, but imho there's no reason
> why they too can't be digitally connected.
> This one is an iiyama vision master pro 453, (ha-901d). One analog
> input, one DVI-D.
> Other CRTs which i know have DVI: IBM P260 and P275 and the NEC FP
All the IBM ones I have seen at work have a DVI connector that only
carries the analog signal. I yet have to see a single CRT that uses the
digital signals (I didn't say there is none, I'm just saying that it's
easy to be confused as it's a DVI connector but it only really carries
analog signaling in most cases).
> I don't know, i don't have even an analogly connected panel. If analog
> panels handle reduced anyway, then it certainly shouldn't be disallowed
> for them either.
Well, I would suggest for now that you provide a way (flag or whatever)
for the driver to inform the mode calculation stuff that it knows for
sure it's a digitally connected display (some have ways to detect it).
In absence of that, don't allow CVT unless it's explicitely enabled in
the config file.
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