[mythtv-users] Can not get SVIDEO to work with GF4MX 440

Todd Duffin nospam at tippyturtle.com
Thu Aug 11 23:38:18 UTC 2005


To (properly) adjust text size, tell X how big your screen is...but that is 
a trick question.  You are usually tell X how big the screen is when you are 
1 foot away...you are 20 feet away!  Anyway, I didn't do the calculations, I 
just hacked.  Here are a bunch of screen sizes for 4:3, pick on that looks 
good to you:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Section "Monitor"
 Identifier "TVOut"
 HorizSync 30-50
 # HorizSync 31.5
 VertRefresh 60
 Option  "DPMS" "0"

 # Little Text
 # DisplaySize     400 300
 # DisplaySize     360 270
 # DisplaySize     320 240
 # DisplaySize     280 210
 # DisplaySize     240 180
 DisplaySize     200 150
 # DisplaySize     160 120
 # DisplaySize     120 90
 # DisplaySize     80 60
 # DisplaySize     40 30
 # Big Text

EndSection
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

You are telling X the dimensions in mm of your screen.  I guess my Screen 
"looks" 200mm by 150mm from my couch.  I guess you could hold a ruler about 
a foot from your face and measure the TV from your chair and get something 
similar.

Todd

----- Original Message ----- 
From: "Brad Fuller" <bradallenfuller at yahoo.com>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Thursday, August 11, 2005 4:19 PM
Subject: Re: [mythtv-users] Can not get SVIDEO to work with GF4MX 440


>
>
> Mark J. Small wrote:
>
>>On August 11, 2005 01:49 pm, Tom wrote:
>>
>>>Hi Mythtv users
>>>
>>>Got a problem with my GF4MX card, i can not get SVIDEO to work with
>>>it. Composite works fine. I also got the feeling, that the resolution
>>>is only 640x480, everything looks a little bit pressed together.
>>>
>>>I am using Ubuntu with nvidia drivers; how can I check which version?
>>>Does it matter?
>>>
>>>Here is the device and screen part of my xorg.conf:
>>>
>>>********************************************************************
>>>Section "Device"
>>>        Identifier      "NVIDIA Corporation NV17 [GeForce4 MX 440]"
>>>        Driver          "nvidia"
>>>        BusID           "PCI:1:0:0"
>>>        Option          "NoLogo"
>>>        Option          "ConnectedMonitor" "TV"
>>>        Option          "TVStandard"    "PAL-G"
>>>        #Option         "TVOutFormat"   "SVIDEO"
>>>        Option          "TVOutFormat"   "COMPOSITE"
>>>        Option          "TVOverScan"    "0.6"
>>>        Option          "RenderAccel"   "0"
>>>        Option          "NvAGP"         "1"
>>>EndSection
>>>********************************************************************
>>>Section "Screen"
>>>        Identifier      "Default Screen"
>>>        Device          "NVIDIA Corporation NV17 [GeForce4 MX 440]"
>>>        Monitor         "tv0"
>>>        DefaultDepth    24
>>>        SubSection "Display"
>>>                Depth           1
>>>                Modes           "1024x768" "800x600" "640x480"
>>>        EndSubSection
>>>        SubSection "Display"
>>>                Depth           4
>>>                Modes           "1024x768" "800x600" "640x480"
>>>        EndSubSection
>>>        SubSection "Display"
>>>                Depth           8
>>>                Modes           "1024x768" "800x600" "640x480"
>>>        EndSubSection
>>>        SubSection "Display"
>>>                Depth           15
>>>                Modes           "1024x768" "800x600" "640x480"
>>>        EndSubSection
>>>        SubSection "Display"
>>>                Depth           16
>>>                Modes           "1024x768" "800x600" "640x480"
>>>        EndSubSection
>>>        SubSection "Display"
>>>                Depth           24
>>>                Modes           "1024x768" "800x600" "640x480"
>>>        EndSubSection
>>>EndSection
>>>********************************************************************
>>>
>>>Any ideas anyone? Thanks!
>>>
>>
>>
>>Try turning off GLX.  Comment out the "Load GLX" line in the modules 
>>section. It worked for me on my debian system.  I never figured out why, 
>>but its worth a shot.
>>I don't have a composite out on my card, so I don't know if your problem 
>>is the same.  I was finding that whenever I tried to use the SVideo out, X 
>>would crash with a signal 11 until I disabled the GLX module.
>>
>>Let me know if it works.  It would be nice to know that somebody else on 
>>earth was having the same problem as me.
>>
>>Mark
>>
> it used to be that the nvidia instructions dictated to comment out GLX. I 
> assume that is still the case.
>
> BTW: Do you have two outputs on the card: an S-Video and a composite? 
> Kinda strange since they are basically the same thing.
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