[mythtv-users] Tv out on Pvr350 used to work, but I broke it?

Don dlbrett at zoominternet.net
Sat Apr 23 17:56:37 UTC 2005


This is a long story, so I'll try to keep short.  I had separate X 
servers running on my pc monitor and  the Pvr350's tvout port (to 
connected tv).  The GUI image was too large for the TV, so I tried to 
correct it.  Most attempts didn't work, but they didn't hurt anything.  
After trying this suggestion:
.....
Edit /etc/X11/gdm/gdm.conf and in the [server-Standard] section, change:
command=/usr/X11R6/bin/X -audit 0
to
command=/usr/X11R6/bin/X -dpi 100 -audit 0
......
From:
http://www.gossamer-threads.com/lists/mythtv/users/109220?search_string=gdm.conf;#109220

, the pc locked up and had to be hard reset.  After rebooting, xorg.conf 
and gdm.conf were both trashed (garbage throughout).  I got xorg.conf 
restored from a backup, and got a clean (??) copy of gdm.conf from 
another pc.  Now, I can run either server, but not both at the same 
time.  Here are some symptoms:

- Run X on pc monitor only, works and mythtv plays on pvr350 tvout port
- Run X on pvr350 tvout, works and mythtv plays on tvout port
- Run both from a clean boot, computer freezes (needs hard reset)

But, if I do this, both work once.

- Run X on pc monitor only
- Play live tv on mythtv on on pvr350 tvout
- Logout of X, turn both servers back on, startx again
- X runs on both, but:
    - at startup the tv speaker buzzes
    - Tv shows the X session for a couple of seconds, goes blank
    - Move mouse over to Tv display, and X session is repainted wherever 
the mouse is moved.
    - Play live tv on pvr350 tvout, it works
- Logout of X
- Run X again, computer freezes

Any suggestions on what to try?  Thanks,
Don

PS - Here's part of the xorg.conf file.  I turn the monitor and pvr350 
on / off by commenting out the appropriate line(s) in the server layout 
section.

Section "Monitor"
    Identifier  "My Monitor"
    HorizSync   31.5 - 50.0
    VertRefresh 40-90
EndSection

Section "Device"
    Identifier  "VESA Framebuffer"
#    Driver      "vesa" # Original
# Added 04-09-2005 - dlb - per nvidia instructions
    Driver      "nvidia"
    #VideoRam    4096
    # Insert Clocks lines here if appropriate
EndSection

Section "Screen"
    Identifier  "Screen 1"
    Device      "VESA Framebuffer"
    Monitor     "My Monitor"
#   DefaultDepth 8
#   DefaultDepth 16
   DefaultDepth 24
#   DefaultDepth 32
    Subsection "Display"
        Depth       8
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       32
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
EndSection

Section "Monitor"
    Identifier "NTSC Television on Hauppauge card"
    # D: 34.563 MHz, H: 37.244 kHz, V: 73.897 Hz
    HorizSync 30-68
    VertRefresh 50-120
    Mode "720x480"
      DotClock 34.564
      HTimings 720 752 840 928
      VTimings 480 484 488 504
      Flags "-HSync" "-VSync"
    EndMode
EndSection

Section "Device"
    Identifier "Hauppauge Device"
    Driver "ivtvdev"
    Option "fbdev" "/dev/fb1"
    BusID "1:8:0"
EndSection

Section "Screen"
    Identifier "Hauppauge Screen"
    Device "Hauppauge Device"
    Monitor "NTSC Television on Hauppauge card"
    DefaultDepth 24
    DefaultFbbpp 32
    Subsection "Display"
        Depth 24
        FbBpp 32
        Modes "720x480"
    EndSubsection
EndSection

Section "ServerLayout"
   Identifier "Dual Display"
   Screen "Screen 1"
    Screen "Hauppauge Screen" RightOf "Screen 1"
#    Screen "Hauppauge Screen"
   InputDevice "Mouse1" "CorePointer"
   InputDevice "Keyboard1" "CoreKeyboard"
EndSection




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