[mythtv-users] Toshiba DVI input at 1080i with a nvidia 5200

Ijaaz A. Ullah ijaaz at digitalmethods.com
Tue Apr 19 14:57:08 UTC 2005


I've tried to get DVI working on my 57H83.  Was NEVER able to get even a
rolling picture.

I went the Audio Authority route:

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Toshiba"
        ModelName    "57in HDTV via AA 9A60"
        HorizSync    31.0 - 46.0
        VertRefresh  59.0 - 61.0
        #VertRefresh  60.0
        DisplaySize 1257 707
        Option     "dpms"
        ModeLine "1200x675" 75.600 1200 1352 1392 1680 675 695 708 750
+hsync +vsync
        ModeLine "540p" 36.787 848 976 1056 1120 480 504 510 559 +hsync
+vsync
        ModeLine "720p" 74.250 1152 1304 1336 1648 648 685 690 750 +hsync
+vsync
        ModeLine "1080i" 73.943 1776 1920 1976 2208 1000 1038 1043 1125
interlace +hsync +vsync
EndSection

Currently using the 720p modeline which is almost a perfect fit


-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Robert Tsai
Sent: Tuesday, April 19, 2005 10:13 AM
To: ianicbrisson at yahoo.com; Discussion about mythtv
Subject: Re: [mythtv-users] Toshiba DVI input at 1080i with a nvidia 5200

On Tue, Apr 19, 2005 at 09:46:44AM -0400, Ianic Brisson wrote:
> >> I'm trying to get the DVI input on my Toshiba 42HDX82 to work at
> >> 1080i (or 540p) with my nvidia FX5200, but the best I get is a
> >> rolling screen. I've tried everything from PowerStrip to
> >> tinckering with the modelines to get various refresh rates bot to
> >> no avail. It works in 480p and 720p (with an ugly upconversion to
> >> 1080i). I've read that Toshiba and/or nvidia doesn't work through
> >> DVI in 1080i but couldn't confirm.
> >> 
> >> If anybody's got an angle that could help me out on this, it
> >> would be appreciated. My MythTV Box is just waiting for this last
> >> step to get rolling.

I have the Toshiba 42H83 (next year's model) working at 960x540p with
DVI:

	Section "Monitor"
		Identifier      "Toshiba 42H83"
		DisplaySize     93 52
		HorizSync       31-46
		VertRefresh     59-61
		Mode "540p"
			DotClock	40.86
			HTimings	960 992 1144 1176
			VTimings	540 551 557 568
			Flags	   "+HSync" "+VSync"
		EndMode
	EndSection

The video card is a Chaintech SH5200-DVI.

Unfortunately, there is overscan that I am unable to correct. With
overscan, my effective resolution is decreased to 856x480+56+32.

I've tried the Audio Authority 9A60; that brought me up to about
952x504+0+20, but every time I switched the TV to that component
input, the convergence was completely reset and I'd have to fix it up
again. Upon switching away from those component inputs, I'd have to
again fix up the convergence.

The extra resolution was not worth the hassle of resetting the
convergence every time and having more parts to deal with, so I went
back to the DVI.

--Rob




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