[argyllcms] Re: Hardware (?) problems: Matrox G550 Dual DVI
- From: Volker Sauer <vsauer@xxxxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Sun, 20 Jul 2008 13:00:54 +0200
On So, 20 Jul 2008, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote:
> Hard to help without a more specific description of what happens.
Well, I'd like to track this down and provide a more specific
description - but: how?
>
> Did it work with Xinerama turned off ?
No, doesn't work either. It gives me a xrandr error and says it falls
back to some other method but on the 2nd screen nothing happens.
>
> Ultimately it comes down to the video card driver, and all too
> many of them don't seem to care about calibrating multiple monitors
> on Linux, and therefore don't seem to implement the driver properly.
> It's been exacerbated by the fact that there is no official means
> for accessing the 2nd screen VideoLUTs when Xinerama is running,
> even though it is possible in some cases.
In which cases is it possible? With which card/driver combinations?
>
> When (or if) they get around to supporting XRandR V1.2 properly,
> this might change, since it has a good means of allowing access
> to the VideoLUT hardware.
They don't support this driver anymore. That's why I actually need new
hardware.
The code of mga_drv is available but not the code of mga_hal which is
needed for features like MergedFB, DRI etc.
But it may be sufficient to look at mga_drv?
Regards
Volker
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