[mythtvnz] Need some help to polish my first Myth install...

[Phillip Baird]

Hi all,

I've just finished setting up my first Myth box... well I thought I 
had!  Everything looked ok initially but closer inspection is showing up 
some display issues (and some others but I'll start with the ones 
causing the WAF to plummet).

Issue #1: Cannot see all the Myth (Ubuntu) screen on the TV.  The TV 
image is slightly smaller than the Myth's height (640) and width (480), 
resulting in some buttons not being visible.

Issue #2: Am seeing a ripple/crinkle cut effect.  This is visible when 
objects move across the screen or if the camera pans. You can see a 
picture of the problem here... 
http://www.realhomes.co.nz/temp/imagedistort.jpg   This is definitely a 
display issue as the problem is visible with Live TV as well as DVD 
playback.  The effect is worse at a 16x9 aspect ratio.  Its considerably 
improved by using the 16x9zoom aspect ratio (zooms the 16x9 to fill the 
full 4x3 screen).  Aspect ratios are being set using the Mythfrontend 
menu item.  If I close down mythfrontend and drag some windows around 
with the mouse I'm pretty sure I do not see the problem, so it appears 
to only be related to the playing of  video.

My feeling at the moment is that these problems are being caused by the 
display setup.

Here's my setup along with the /etc/X11/xconf.org settings...

Mythbuntu 7.10 (with all latest updates)
Nvidia Geforce 7200GS with proprietary Nvidia drivers
SkyStar2
Phillips 29PT9420 TV (29" std 4:3 aspect ratio), supports 1080i, 576p 
and 480p HD modes.  VGA connection between card and TV (have also tried 
Component).   TV reports it is running in 480p.

xconf.org...

Section "ServerLayout"
    Identifier    "Default Layout"
    Screen "MonitorScreen" 0 0
    Inputdevice    "Generic Keyboard"
    Inputdevice    "Configured Mouse"
EndSection

Section "Module"
    Load        "glx"
    Load        "vnc"
EndSection

Section "Device"
    Identifier    "NvidiaCard"
    Driver        "nvidia"
    Screen 0
    Option        "DPI"    "100x100"
    Option        "UseEvents"    "1"
    Option        "AddARGBVisuals"    "1"
    Option        "AddARGBGLXVisuals"    "1"
    Option        "NoLogo"    "1"
EndSection

Section "Monitor"
    Identifier    "GenericMonitor"
    Option        "DPMS"
EndSection

Section "Screen"
    Identifier    "MonitorScreen"
    Device        "NvidiaCard"
    Monitor        "GenericMonitor"
    Defaultdepth    24
    SubSection "Display"
        Depth    24
        Modes    "nvidia-auto-select" "1920x1080" "1280x720" "1024x768" 
"720x480" "800x600" "640x480"
    EndSubSection
    Option        "SecurityTypes"    "VncAuth"
    Option        "UserPasswdVerifier"    "VncAuth"
    Option        "PasswordFile"    "/root/.vnc/passwd"
EndSection

Any suggestions would be greatly appreciated.

thanks

/PhillipB