[mythtv-users] 1080i not available on FC4?

Mat Kyne matkyne at hotmail.com
Wed Sep 21 16:00:17 UTC 2005

I have a sony 4:3 HDTV with 2 component imputs and 1 DVI input. I could not 
get 1080i to work over the DVI input, and neither could anyone else, (unless 
something has changed recently). So I bought a Crescendo Systems Transcoder 
to convert the analog VGA signal into Component. It works great and is 
powered off the PCI slot. My box is setup to dual boot into Linux and Win2K. 
I have booted into Windows and used Powerstrip to setup my HD resolutions. I 
decided that tv looked better with some overscan so I setup true 480p, 720p 
and 1080i resolutions using Powerstrip. I used a few pictures that  I made 
as the background image and made sure the screen was centered, and once I 
got everything the way I liked it, I cut and pasted the Linux Modelines into 
my xorg.conf file. (that I originally got from Jarod.) Well I rebooted into 
Linux, and backed up my xorg.conf file and replaced it with my new one. 
Crtl-Alt-Backspace to restart X, and use the new resolutions. It booted into 
720p no problem, but when I tried to change the resolution to 1080i, the 
resolution was not available. Does anyone know why KDE would not see or 
allow the 1920x1080i resolution? I am posting my modified xorg.conf file. 
Any ideas would be most appreciated.

# Xorg X server configuration for HDTV
# by Jarod Wilson - Modified by Mat Kyne 9/20/05

Section "ServerLayout"
        Identifier     "Default Layout"
        Screen      0  "Screen0" 0 0
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"

Section "Files"

# RgbPath is the location of the RGB database.  Note, this is the name of 
# file minus the extension (like ".txt" or ".db").  There is normally
# no need to change the default.
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Red Hat 6.0 and later now use a font server independent of
# the X server to render fonts.
        RgbPath      "/usr/X11R6/lib/X11/rgb"
        FontPath     "unix/:7100"

Section "Module"
        Load  "dbe"
        Load  "extmod"
        Load  "fbdevhw"
        Load  "glx"
        Load  "record"
        Load  "freetype"
        Load  "type1"
#       Load  "dri"
        Load  "v4l"

Section "InputDevice"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
#       Option  "Xleds"         "1 2 3"
# To disable the XKEYBOARD extension, uncomment XkbDisable.
#       Option  "XkbDisable"
# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults).  For example, for a non-U.S.
# keyboard, you will probably want to use:
#       Option  "XkbModel"      "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
#       Option  "XkbModel"      "microsoft"
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
#       Option  "XkbLayout"     "de"
# or:
#       Option  "XkbLayout"     "de"
#       Option  "XkbVariant"    "nodeadkeys"
# If you'd like to switch the positions of your capslock and
# control keys, use:
#       Option  "XkbOptions"    "ctrl:swapcaps"
# Or if you just want both to be control, use:
#       Option  "XkbOptions"    "ctrl:nocaps"
        Identifier  "Keyboard0"
        Driver      "keyboard"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "us"

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "IMPS/2"
        Option      "Device" "/dev/input/mice"
        Option      "ZAxisMapping" "4 5"
        Option      "Emulate3Buttons" "yes"

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Sony Wega"
        ModelName    "38in HDTV via Crescendo Systems Transcoder"
        HorizSync    31.5, 33.75, 45
        VertRefresh  30, 59.94
        #VertRefresh  60.0
        Option     "dpms"
        # My 640x480p mode
        Mode "640x480p"
                DotClock 25.182
                HTimings 640 688 784 816
                VTimings 480 490 492 525
                Flags "-HSync" "-VSync"
        # My 1280x720p mode
        Mode "1280x720p"
                DotClock 74.925
                HTimings 1280 1376 1512 1664
                VTimings 720 721 729 751
                Flags "+HSync" "+VSync"
        # My 1920x1080i mode
        Mode "1920x1080i"
                DotClock 82.227
                HTimings 1920 2088 2280 2432
                VTimings 1080 1107 1110 1155
                Flags "+HSync" "+VSync" "Interlace"

Section "ServerFlags"
        Option "blank time" "0"
        Option "standby time" "0"
        Option "suspend time" "0"
        Option "off time" "0"

Section "Device"
        Identifier  "Videocard0"
        Driver      "nvidia"
        VendorName  "Chaintech"
        BoardName   "GeForce FX 5200"
        #Option      "RenderAccel" "1"
        #Option      "NvAGP" "3"
        Option      "NoDDC" "1"

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes    "640x480p" "1280x720p" "1920x1080i"

Section "DRI"
        Group        0
        Mode         0666

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