[mythtv-users] Can a FX5200 drive a Westinghouse LVM-42w2

[Dwayne B.]

On 17:28 Wed 12 Jul     , Marc Infield wrote:

-------8<--------

> >
> > I have that exact TV, as well as that exact Chaintech FX5200 card.  
> > I found
> > that with the newest nvidia proprietary drivers, the FX5200 is  
> > limited to a
> > 135Mhz pixel clock over the DVI output. With earlier drivers, this was
> > apparently not a limitation, but getting the older drivers to work  
> > with the
> > newer kernels is a non-trivial thing. The 135Mhz clock is not  
> > enough to
> > drive 1080p, so it refused to work. However, over the 15 pin vga  
> > connector,
> > I was able to do 1080p. I had another machine that is a dual boot


-------8<--------

> Wow, thanks that makes pretty good sense of things! Thanks so much.
> 
> To summarize, with the current Nvidia driver I need to use the VGA  
> port. I'm at work now so I can't double check but I think I just have  
> s-video and DVI on my fx5200. I will check when I get home. But if  
> this is true then the cowards way out would be to get something like   
> a fanless Geforce 6200 [http://www.newegg.com/Product/Product.asp? 
> Item=N82E16814145118], which I might add is only a few of dollars  
> more than the DVI cable I picked up from Best Buy.
> 
> [Off-topic] But I'm considering turning this system into a backend  
> and getting mac mini as front end so we can also run iTunes.
> 
> Thanks,
> -marc
> 

I've also ran into this same issue with driving a 1080p LCD (the Sceptre
X37SV-Naga) at it's native resolution using the DVI port with the
version 8756 drivers, and I also have the same Chaintech FX5200 video
card.  It worked for me over the VGA port as in your case.  Adding this
option in the nvidia Device section made it work over DVI with the 8756
drivers for me:

Option "ModeValidation" "NoMaxPClkCheck, NoEdidMaxPClkCheck"

And I use the following modeline:

ModeLine "1920x1080p" 148.500 1920 2024 2072 2200 1080 1084 1094 1124 -hsync -vsync

All seems well in my setup, the X desktop and MythTV gui is in 1920x1080
and HD content looks good.  The video card is connected to the LCD with
a DVI->HDMI cable.

HTH,
Dwayne