[mythtv-users] TVOverScan not working?

allen edwards allen.edwards at oldpaloalto.com
Sat Jun 28 01:58:13 UTC 2008


My prototype worked with 'Option "TVOverScan"   "0.5"'  in the Device 
section of xorg.conf.  My new hardware is unaffected by any value of 
TVOverScan, even 1.0.  (TV CRT with SVIDEO input)

I probably have a little different driver configuration than most in 
that I have nvidia drivers disabled in the hardware driver section but 
they are being loaded by xorg.conf.  I don't really understand this, I 
just know that they are loaded by xorg and that the computer will not 
boot if I enable them in the nvidia control window.  I think there is a 
conflict between the nvidia driver and the air2pc cards.

TVOverScan should work.  I have seen it work, just not with this 
hardware.  I don't know what to do.  This is the last problem in the 
system that I know of.  Everything else is working.  I need to get the 
picture screen filled by the output.

Note, this is not actually a Myth thing as the normal X-windows doesn't 
fill the CRT but I though there might be some helpful folks on this list.

Allen


Here is some of my xorg.conf:

    Section "ServerLayout"
        Identifier     "Layout0"
        Screen      0  "Screen0" 0 0
        Screen      1  "Screen1" RightOf "Screen0"
        InputDevice    "Keyboard0" "CoreKeyboard"
        InputDevice    "Mouse0" "CorePointer"
    EndSection

    ---snip some stuff-----

    Section "Monitor"
        # HorizSync source: edid, VertRefresh source: edid
        Identifier     "Monitor0"
        VendorName     "Unknown"
        ModelName      "Panasonic AX-100"
        HorizSync       28.0 - 49.0
        VertRefresh     24.0 - 61.0
        Option         "DPMS"
    EndSection

    Section "Monitor"
        # HorizSync source: xconfig, VertRefresh source: xconfig
        Identifier     "Monitor1"
        VendorName     "Unknown"
        ModelName      "TV-0"
        HorizSync       28.0 - 49.0
        VertRefresh     24.0 - 61.0
        Option         "DPMS"
        Option         "TVOverScan"   "1.0"
    EndSection

    Section "Device"
        Identifier     "Videocard0"
        Driver         "nvidia"
        VendorName     "NVIDIA Corporation"
        BoardName      "GeForce 6200 LE"
        BusID          "PCI:1:0:0"
        Option         "UseDisplayDevice" "DFP"
        Screen          0
    EndSection

    Section "Device"
        Identifier     "Videocard1"
        Driver         "nvidia"
        VendorName     "NVIDIA Corporation"
        BoardName      "GeForce 6200 LE"
        BusID          "PCI:1:0:0"
        Option         "UseDisplayDevice" "TV-0"
        Screen          1
    EndSection

    Section "Screen"
        Identifier     "Screen0"
        Device         "Videocard0"
        Monitor        "Monitor0"
        DefaultDepth    24
        Option         "TwinView" "0"
        Option         "metamodes" "DFP: 1280x720_60 +0+0"
        SubSection     "Display"
            Depth       24
        EndSubSection
    EndSection

    Section "Screen"
        Identifier     "Screen1"
        Device         "Videocard1"
        Monitor        "Monitor1"
        DefaultDepth    24
        Option         "TwinView" "0"
        Option         "metamodes" "TV: nvidia-auto-select +0+0"
        SubSection     "Display"
            Depth       24
        EndSubSection
    EndSection

Here is some of the x log:

    (II) NVIDIA(0): Validated modes:
    (II) NVIDIA(0):     "nvidia-auto-select"
    (II) NVIDIA(0): Virtual screen size determined to be 1024 x 768
    (++) NVIDIA(0): DPI set to (100, 100); computed from -dpi X
    commandline option
    (==) NVIDIA(0): Enabling 32-bit ARGB GLX visuals.
    (**) NVIDIA(1): Depth 24, (--) framebuffer bpp 32
    (==) NVIDIA(1): RGB weight 888
    (==) NVIDIA(1): Default visual is TrueColor
    (==) NVIDIA(1): Using gamma correction (1.0, 1.0, 1.0)
    (**) NVIDIA(1): Option "TwinView" "0"
    (**) NVIDIA(1): Option "MetaModes" "TV: nvidia-auto-select +0+0"
    (**) NVIDIA(1): Option "TVOverScan" "1.0"
    (**) NVIDIA(1): Option "UseDisplayDevice" "TV-0"
    (**) NVIDIA(1): Enabling RENDER acceleration
    (II) NVIDIA(1): NVIDIA GPU GeForce 6200 LE (NV44) at PCI:1:0:0 (GPU-0)
    (--) NVIDIA(1): Memory: 524288 kBytes
    (--) NVIDIA(1): VideoBIOS: 05.44.02.67.01
    (II) NVIDIA(1): Detected PCI Express Link width: 16X
    (--) NVIDIA(1): Interlaced video modes are supported on this GPU
    (--) NVIDIA(1): Connected display device(s) on GeForce 6200 LE at
    PCI:1:0:0:
    (--) NVIDIA(1):     NVIDIA TV Encoder (TV-0)
    (--) NVIDIA(1): NVIDIA TV Encoder (TV-0): 400.0 MHz maximum pixel clock
    (--) NVIDIA(1): TV encoder: NVIDIA
    (II) NVIDIA(1): Assigned Display Device: TV-0
    (II) NVIDIA(1): Validated modes:
    (II) NVIDIA(1):     "TV:nvidia-auto-select+0+0"
    (II) NVIDIA(1): Virtual screen size determined to be 1024 x 768
    (++) NVIDIA(1): DPI set to (100, 100); computed from -dpi X
    commandline option
    (==) NVIDIA(1): Enabling 32-bit ARGB GLX visuals.
    (--) Depth 24 pixmap format is 32 bpp


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