[mythtv-users] Re: PC to HDTV : GHV-1000 : Opinions anyone?

Preston Crow pc-mythtv04 at crowcastle.net
Tue Nov 30 00:37:26 UTC 2004


On Mon, 2004-11-29 at 18:55, George Hodge wrote:
> PC,
> 
> If you wouldn't mind, could you list the model number for your Sony
> HDTV, where you got your DVI-HDMI cable, and the modeline you list.

I have a CRT-based Sony HDTV, the KV-34HS420.  The DVI-HDMI cable was
from svideo.com (I had never heard of them, but it wasn't too
expensive).  The /etc/xorg.conf has a few settings that are important:

Section "Device"
	Option	"NoDDC" "1" # Don't ask the monitor about supported modes
	Option		"IgnoreDisplayDevices" "TV"

The NoDCC is critical, as the TV lies about its capabilities.  My
suspicion is that the standard for reporting the information doesn't
support a list of fixed modes, as it is designed for multi-sync
monitors, not televisions.

The IgnoreDisplayDevices option is important because I have a s-video
cable set up to connect to the VCR to let my wife archive shows--I
switch to a different config file for that.

The modelines were a pain to figure out, but here's what I came up with:
# From: http://www.gag.com/cgi-bin/blosxom/bdale/pvr
        Modeline        "720p" 74.25 1280 1312 1592 1648 720 735 742 757
# From: (I don't remember)
	Mode "960x540p"
		DotClock 37.26
		HTimings 960 976 1008 1104
		VTimings 540 542 548 563
		Flags "+HSync" "+VSync"
	EndMode
# From http://www.linuxis.us/linux/media/howto/linux-htpc/video_card_configuration.html
	ModeLine "ATSC-480-59.94p" 23.916 640 664 736 760 480 484 492 525

I don't have it switching between 1080i and 720p yet, but I think one of
the following is right for 1080i:
	ModeLine "ATSC-1080-59.94i" 74.176 1920 1960 2016 2200 1080 1082 1088
1125 Interlace
	ModeLine "ATSC-1080-60i" 74.25 1920 1960 2016 2200 1080 1082 1088 1125
Interlace

> I will be taking delivery of a Sony LCD rear projection this weekend
> and I'm trying to decide whether a DVI-HDMI cable or a "translator"
> like the Audio Authority 9A60 (not sure of the model number). How does
> text appear on you screen? Is it pretty sharp? I'd like to be able to
> use  my TV for casual web surfing and email.

Everything is great.  There's a good bit of overscan, so it took a bit
of playing around to get the settings in Myth right to not overscan the
user interface.  MythGame has some things going off the screen, so I
need to do some more tweaking.  Text is generally pretty crisp and
readable with the 720p mode.

--PC




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