[mythtv-users] DVI on GeForce 6200 to HDMI on Toshiba 30HF84 TV

Richard Woelk richardwoelk at yahoo.ca
Thu Dec 14 02:33:56 UTC 2006

Robin Murray wrote:
> I'm trying to connect my system using the DVI out on my MSI GeForce 6200 
> video card to the HDMI input on my Toshiba 30HF84 TV using a DVI to HDMI 
> cable. I never get a thing on the TV, as if there's no signal detected 
> coming from the graphics card.
> I want to check here that I should get BIOS messages via this 
> connection, correct? Or would I only get a signal once the XWindows 
> drivers have initialized? I guess I'm trying to nail down if this is a 
> basic connection problem, or a problem with XWindows. Not knowing how 
> it's *supposed* to work hinders ones ability to figure out what's wrong.
> I do see some sort of EDID exchange taking place in the XWindows log 
> (which I'm still looking in to), so I know the connection is there, but 
> I'm thinking that I should be seeing *something* before XWindows starts....
> Thanks!
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> mythtv-users at mythtv.org
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I have a Toshiba 26HF84 tv and I drive it at 720p over HDMI from the DVI 
port of a MSI Geforce FX 5200

It took me a while to get the right xorg settings (posted below), 
because the tv's PnP data only allows 640x480 @ 60Hz. Eventually I found 
help at nvnews.com

I don't get anything on my tv until X loads with this card, but with an 
eVGA PCIe geforce 6200, it displayed the bios & kernel screens just fine
I now leave my s-video plug hooked up to the tv as well, and switch tv 
inputs to view my bios & boot screens, as it is rare that I need to 
change settings.

I have tried a few times to get 1080i, but I only have standard def 
input via a pvr-250, so it doesn't gain me anything right now.

I just noticed that the 720p modeline is missing from my monitor 
section, it must be that the newest nVidia binary driver(9629) can do it 
automagically, and the setup deleted it.

I have the service mode for this tv as well, and I think it might work 
for yours. email me if you want it. I was able to reduce the overscan 
slightly, but the sides of the raster are really ugly on this tv, so I 
make do with Mythtv's GUI size adjustments.

Richard Woelk

here are the important sections of my xorg.conf

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Toshiba"
        ModelName    "16HF84"
        DisplaySize  325        183
        HorizSync    14.0 - 65.0
        VertRefresh  56.0 - 61.0

Section "Device"
        Identifier  "Videocard0"
        Driver      "nvidia"
        VendorName  "Videocard vendor"
        BoardName   "NVIDIA GeForce FX (generic)"

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        Option      "UseEDIDFreqs" "FALSE"
        Option      "UseEDIDDpi" "FALSE"
        Option      "connectedmonitor" "dfp"
        Option      "FlatPanelProperties" "scaling = center, Dithering = 
        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes    "1280x720"

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