[mythtv-users] S3 Graphics UniChrome Pro IGP

[Josh White]

I just got myself a JetWay VIA C7 mini-ITX board.  (one of these:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813153050R)

I have it working, to some degree, but I think I'm having trouble with my
xorg.conf.  I can't seem to make it run the display at a reasonable
resolution.  I'm using the "openchrome" drivers, with an S-video connection
to my NTSC SD CRT TV (how's THAT for acronyms!), running on Mythbuntu 8.04.
When connected only to the TV, it seems to run happily at 640 x 480, but
earlier in the day, I seemed to "trick" it into working at a higher
resolution.  I had the machine configured in BIOS to output only to the CRT
(on the normal D-sub output).  I booted the machine into Mythbuntu, then
restarted X.  Then, for some reason that I cannot explain, both the TV and
the CRT were displaying (both were switched on, but prior to the X restart,
but the TV was blank) at a resolution of 1024 x 768.  This seemed to work
well, until I restarted the machine, set the BIOS to display only to the TV,
and tried to boot.  Now, I'm back to 640 x 480.  I imagine this is due to a
modeline issue in my xorg.conf, but I'm not not very experienced with
setting this up.  I had the same TV working with an nvidia FX5200, but the
motherboard on that machine was flaky, and I decided to give the low-power
end a try.

So that's my story, I tried to keep it succinct.  I'm also trying to get it
to use XVMC.  If anyone has experience with these boards, or TV-out to an
NTSC SDTV via S-video, I'd appreciate any tips you can provide.

Thanks,

Josh

I've posted my xorg.conf below:

Section "Device"
    Identifier    "S3 Graphics UniChrome Pro IGP"
    Boardname    "CN700"
    Busid        "PCI:1:0:0"
    Driver        "openchrome"
    Screen    0
    Option        "Active Device" "CRT TV"
    Option        "TVType"    "NTSC"
    Option        "TVOutput"    "S-Video"
    #Option        "EnableAGPDMA"    "1"
EndSection

Section "Monitor"
    Identifier    "TV on S-Video"
    Vendorname    "Sharp"
    Modelname    "ultrasharp"
  #modeline  "640x480 at 60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
    #Gamma    1.0
EndSection

Section "Screen"
    Identifier    "Default Screen"
    Device        "Configured Video Device"
    Monitor        "Configured Monitor"
    Defaultdepth    24
    SubSection "Display"
        Depth    24
        #Virtual    1024    768
        #Modes        "1280x1024 at 60" "1024x768 at 60" "800x600 at 60" "640x480 at 60"

        Modes    "720x480Noscale"

    EndSubSection
EndSection

Section "ServerLayout"
    Identifier    "Default Layout"
  screen 0 "Default Screen" 0 0
EndSection
Section "Module"
    Load        "glx"
    Load        "GLcore"
    Load        "v4l"
    Load        "dbe"
    Load        "extmod"
    Load        "fdbdevhw"
    Load        "dri"
    Load        "record"
    Load        "freetype"
    Load        "type1"
EndSection

Section "DRI"
    Group        "video"
    Mode         0666
EndSection
Section "ServerFlags"
EndSection
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