Re: Rivafb won't work with DVI connector

[Andrew Walrond <andrew@walrond.org>]

On Tuesday 23 Nov 2004 18:26, Antonino A. Daplas wrote:
> On Wednesday 24 November 2004 02:01, Andrew Walrond wrote:
>
> > With dvi connection and no params, I get a fully working console, but at
> > 1024x768 (128x48)
>
> Okay, this is what I wanted to fix.  Note that the preferred timing when
> dvi is attached is 1024x768. When dsub, it's 1600x1200.  You see this
> in your dmesg "First DETAILED Timing is preferred", and without options
> the first detailed timing block will be used.
>

Can you explain further...
This is £1000 of TFT LCD panel with 1600x1200 _physical_ pixels. The panel 
size is 1600x1200, not 1024x768. So where is this erroneous value coming 
from?

> Note, that you may not be able to force resolutions > panel size.  You can
> try, all you need to do is remove this code in
> drivers/video/nvidia/nvidia.c:nvidiafb_check_var:

I don't want to force illegal modes, I'd rather just have the real panel size 
reported, then all modes would be legal :(

I wonder; does DVI have any recommended limits on bandwidth, resulting in a 
max resolution with dvi of 1024x768? Something at the back of my mind is 
triggering bells here. Anyone know? I guess google is my friend ;)

I'll try the other things you mention and report back later.

Thanks for your efforts this far!

Andrew


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