[soder]

Here's a question for a newbie on both Linux/Ubuntu as XBMC.

I think I have everything running now (Full Ubuntu Desktop with XBMC stable release) on a Asrock ION 330 but I do have one major problem left which is bugging me and it's the final thing I'd like to resolve before I can fully enjoy my system.

Right after following this guide http://www.xbmc.org/forum/showthread.php?t=54705 I was having problem with 24p material. Obvious motion judder with camera panning scenes. When I added the "DynamicTwinView" "False" option into my xorg.conf and enabled refresh rates, problems seemed to be solved but the screen was schifted into the upper-left corner of my TV. So I was seeing half of the picture.

I then found a post of someone who said he resolved it and I copied parts of his xorg.conf and now mine looks like this:

Code:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister@builder63)  Fri Aug 14 17:54:58 PDT 2009

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

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       14.0 - 72.0
    VertRefresh     24.0 - 62.0
#   Option         "DPMS"
    Modeline    "[email protected]"  74.230 1920 2560 2604 2752 1080 1084 1089 1125 +hsync +vsync
    Modeline    "1920x1080@50p"     148.500 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync
    Modeline    "[email protected]"  74.176 1920 1960 2016 2200 1080 1082 1088 1125 +hsync +vsync Interlace
    Modeline    "[email protected]"  148.352 1920 1960 2016 2200 1080 1082 1088 1125 +hsync +vsync
    Modeline    "1920x1080@60i"     74.25 1920 1960 2016 2200 1080 1082 1088 1125 +hsync +vsync Interlace
    Modeline    "1920x1080@60p"     148.500 1920 2008 2056 2200 1080 1084 1089 1125 +hsync +vsync
EndSection

Section "Device"
    Option "HWCursor" "False"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option         "HWCursor" "false"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24

    Option         "ExactModeTimingsDVI"  "True"
#   Option         "ModeValidation"       "NoEdidModes"
    Option         "UseEDIDFreqs"         "False"
    Option         "ModeValidation"       "NoEdidModes, NoMaxPClkCheck, NoEdidMaxPClkCheck, AllowNon60HzDFPModes"

    Option         "NoLogo"               "True"
    Option         "DynamicTwinView"      "False"

I have no idea what the "modeline" lines in this file mean but apparently they solved the 24p problem. My XBMC menu is also displayed in 24Hz since the appearance settings tell me the resolution is 1920x1080@24hz. I'd rather see this at a higher refresh rate but I don't really care much about this a long as my movies work correctly.

BUT! (you know this was coming... ;-))
When I try to play regular DVD ISO (PAL) files, XBMC crashed back to the Ubuntu login screen. After XBMC automatically restarted the DVD ISO will play but is shown in 50Hz! Which give really horrible motion judder!
The crash only happens once, but after playing another HD file it reoccurs.

Please give me some advice, I really don't have a clue what to do next...

I can try, but I guess someone can correct me if Im wrong. =)

I only use 3 modelines. 1080p@24,50,60 Hz.

I then have Ubuntu to set as 60 Hz. That means that XBMC is running in 60 Hz as standard. With auto refresh rate ON, then the TV change for 24, 25 and 50 Hz. Not for 30 and 60 Hz.

When in 24 or 50 Hz, if you TV is in 60 Hz as standard, you have to recalibrate the screen. Bring up the menu and then recalibrate.

If you have your TV in 24 as standard, then your screen is calibrated for 24, and you have to do it when you're in 50 and 60 Hz.

/Söder