[mythtv-users] optimizing nvidia tv-out for widescreen rearprojection tv connected via s-video
James Buckley
xanium4332 at googlemail.com
Fri May 18 18:39:54 UTC 2007
It depends on what connection methods you have available. At the moment
you're using Component, does your TV have DVI/HDMI inputs at all?
On 18/05/07, Willis, Ben <BenWillis at anderson5.net> wrote:
>
> I have a widescreen plasma tv with a 1024x768 'native' resolution. Would
> using this xorg configuration give the best picture? Not trying to hijack
> the email here but thought it would be good to ask in conjunction.
>
>
>
> I currently use this and wondered if I could get a better picture:
>
>
>
> #######################
>
> Section "Device"
>
> Identifier "NVIDIA Corporation NVIDIA Default Card"
>
> Driver "nvidia"
>
> Option "DPMS" "false"
>
> # BusID "PCI:1:0:0"
>
> # Option "TVOverScan" "0.6"
>
> EndSection
>
>
>
> #Section "Monitor"
>
> # Identifier "DELL E172FP"
>
> #------------720p----------------------------
>
> Option "metamodes" "CRT: 1280x720 +0+0"
>
> Option "TVStandard" "HD720p"
>
> Option "UseEDID" "TRUE"
>
> Option "ConnectedMonitor" "TV"
>
> Option "TvOutFormat" "Component"
>
> Option "AddARGBGLXVisuals" "True"
>
> #Option "FlatPanelProperties" "scaling = centered"
>
> Option "TVOverScan" "0.6"
>
>
>
> SubSection "Display"
>
> Depth 24
>
> Modes "720x480" "1176x664" "1280x720" "1920x1080"
>
> EndSubSection
>
> EndSection
>
>
>
> Section "Monitor"
>
> Identifier "TV"
>
> Option "DPMS" "false"
>
> #Modeline "1280x720" 74.48 1280 1336 1472 1664 720 721 724 746
> -hsyn$
>
> Modeline "1280x720" 74.16 1280 1392 1432 1648 720 725 730 750
> +hsync$
>
> Modeline "1176x664" 74.16 1176 1288 1328 1648 664 669 674 750
> +hsync$
>
> EndSection
>
>
>
> Section "Screen"
>
> Identifier "Screen1"
>
> Device "NVIDIA Corporation NVIDIA Default Card"
>
> Monitor "TV"
>
> DefaultDepth 24
>
>
>
> SubSection "Display"
>
> Depth 24
>
> Modes "720x480" "1176x664" "1280x720" "1920x1080"
>
> EndSubSection
>
> EndSection
>
>
>
> Section "DRI"
>
> Mode 0666
>
> EndSection
>
>
>
> Section "Extensions"
>
> Option "Composite" "Enable"
>
> EndSection
>
>
>
> ############################
>
>
>
> Ben
> ------------------------------
>
> *From:* mythtv-users-bounces at mythtv.org [mailto:
> mythtv-users-bounces at mythtv.org] *On Behalf Of *James Buckley
> *Sent:* Friday, May 18, 2007 12:29 PM
> *To:* Discussion about mythtv
> *Subject:* Re: [mythtv-users] optimizing nvidia tv-out for widescreen
> rearprojection tv connected via s-video
>
>
>
> On 18/05/07, *Daniel Agar* <daniel at agar.ca> wrote:
>
> > now that I've been using Myth for a while... starting to wonder if I can
> > get better picture quality, not that it's bad... seems pretty darned
> nice
> > really.. but one just never knows.
> >
> > My TV is a 46" sony widescreen rear projection TV, the only connection I
> > have available on my FE is s-video or composite.. (TV has DVI,
> > component..etc..etc..). I have a feeling that s-video will be the
> > limiting factor for me. My card is nVidia Corporation NV34 [GeForce FX
> > 5200] (rev a1)
> >
> > One other thing I've noticed, that perhaps someone can chime in on. I
> > route most of my video devices through my receiver/amp, for whatever
> > reason the nVidia driver/card will only initialize the tv-out if I'm
> > directly connected to the TV (don't have to be on that particular input,
> > TV doesn't even need to be on) or I have the receiver turned on and that
>
> > input selected. I'm guessing that the card/driver does something to
> > attempt to detect the TV, which fails when hooked up to my receiver.
> >
> >
> > The pertinent xorg.conf sections, I left out my other monitor config,
> > it's rarely hooked up and I don't think have any effect on things. I'm
> of
> > course open to any and all suggestions..
> >
> > tia.
> >
> > Section "Monitor"
> > Identifier "TV"
> > HorizSync 30-50
> > VertRefresh 60
> > Option "UseEdidDpi" "FALSE"
> > Option "DPI" "100 x 100"
> > EndSection
> >
> > Section "Device"
> > Identifier "nvidia1"
> > Driver "nvidia"
> > Option "NoLogo" "true"
> > VideoRam 128000
> > Option "TVStandard" "NTSC-M"
> > Option "TVOutFormat" "SVIDEO'
> > # Option "TVOverScan" "0.6"
> > Option "TwinView"
> > Option "TwinViewOrientation" "Clone"
> > Option "ConnectedMonitor" "TV"
> > # Insert Clocks lines here if appropriate
> > EndSection
> >
> >
> > Section "Screen"
> > Identifier "TVOut"
> > Device "nvidia1"
> > Monitor "TV"
> > Option "TVStandard" "NTSC-M"
> > Option "TVOutFormat" "SVIDEO"
> > DefaultDepth 32
> > Subsection "Display"
> > Depth 24
> > Modes "1024x768" "800x600" "640x480"
> > ViewPort 0 0
> > EndSubsection
> > Subsection "Display"
> > Depth 32
> > Modes "1024x768" "800x600" "640x480"
> > ViewPort 0 0
> > EndSubsection
> > EndSection
> >
> >
> >
> >
> This probably isn't the suggestion your looking for, but you might
> consider swaping that FX 5200 for one that has dvi on it. I was using an
> s-video connection on my 37" lcd and the quality difference when I
> switched to dvi was incredible, completely worth the $40 spent on the
> card.
>
> Other than that I don't see any main changes you could make with your
> xorg.conf, its about the same as the config I use on another SD frontend.
> You might consider adjusting the overscan with the nvidia-settings tool
> which will adjust in real time.
>
>
>
> I second this, DVI/HDMI gives awsome pictures, and in some circumstances
> allows one-to-one pixel mapping.
>
>
>
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