[mythtv-users] video distortion

[Will Constable]

Here is my Xorg.conf-any idea what setting Is wrong or what options I might
add to fix it?

----

Section "ServerLayout"

#       Identifier     "Default Layout"
#       Screen      0  "Screen0" 0 0
        Identifier     "dual head configuration"
        Screen         "Screen0" 0 0
        Screen         "Screen1" RightOf "Screen0"
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"

# Multiple FontPath entries are allowed (they are concatenated together)
# By default, a font server independent of the X server is
# used to render fonts.
        ModulePath   "/usr/lib/xorg/modules/extensions/nvidia"
        ModulePath   "/usr/lib/xorg/modules"
        FontPath     "unix/:7100"
EndSection

Section "Module"
        Load  "dbe"
        Load  "extmod"
        Load  "fbdevhw"
        Load  "record"
        Load  "freetype"
        Load  "type1"
        Load  "glx"
EndSection

Section "InputDevice"

        Identifier  "Keyboard0"              
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "us"
EndSection     

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

Section "Monitor"  

### Comment all HorizSync and VertSync values to use DDC:
        Identifier   "Monitor0"
        VendorName   "Monitor Vendor"               
        ModelName    "HP D5259A Pavilion M70 Monitor"
        DisplaySize  320        240
 ### Comment all HorizSync and VertSync values to use DDC:
        HorizSync    31.5 - 71.0            
        VertRefresh  56.0 - 85.0
        Option      "dpms"
EndSection          

Section "Monitor"

### Comment all HorizSync and VertSync values to use DDC:
        Identifier   "TV"      
        VendorName   "Monitor Vendor"               
 ### Comment all HorizSync and VertSync values to use DDC:
        HorizSync    30.0 - 50.0   
        VertRefresh  60.0 - 60.0
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "nvidia"
        VendorName  "Videocard vendor"
        BoardName   "nVidia Corporation NV17 [GeForce4 MX 420]"
        BusID       "PCI:1:0:0"
EndSection

Section "Device"
        Identifier  "Videocard1"
        Driver      "nvidia"
        VendorName  "Videocard vendor"
        BoardName   "nVidia Corporation NV17 [GeForce4 MX 420]"
        Option      "TVStandard" "NTSC-M"
        Option      "TVOutFormat" "SVIDEO"
        Option      "TVOverScan" "0.6"
        BusID       "PCI:1:0:0"
        Screen      1                       
EndSection

Section "Screen"    
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     16
                Modes    "800x600" "640x480"              
        EndSubSection
        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes    "1280x1024"
        EndSubSection
EndSection

Section "Screen"
        Identifier "Screen1"
        Device     "Videocard1"
        Monitor    "TV"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0 
                Depth     16                        
                Modes    "800x600" "640x480"              
        EndSubSection              
        SubSection "Display"    
                Viewport   0 0
                Depth     24
                Modes    "800x600"
        EndSubSection           
EndSection                  

Section "DRI"
        Group        0         
        Mode         0666
EndSection


-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Ben Lancaster
Sent: Wednesday, June 07, 2006 10:43 AM
To: Discussion about mythtv
Subject: Re: [mythtv-users] video distortion


On 7 Jun 2006, at 15:38, Will Constable wrote:

> I am running a frontend via s-video and when I use the same TV and 
> s-video cable from my laptop via windows I get a perfect picture, but 
> using linux on my myth box there is something wrong.  The color is 
> fine but there are vertically oriented bars of distortion that scan 
> from left to right constantly-they are transparent in the sense that 
> you can see everything on the screen just fine at any given time, but 
> they are really annoying to look at.  I am wondering if the video card 
> itself, an old Geforce 4 MX420 I had lying around, is just not a good 
> enough card or might be damaged, or if maybe a setting for the nvidia 
> driver in my XOrg.conf could fix this.  Any suggestions?
Check your display settings for the TV Out (especially vertical/ horizontal
refresh and resolution) on your windows laptop, and try to mirror them in
your xorg.conf

nvidia tv-out is generally speaking about as good as it gets for cheap
(ish) consumer cards, so i doubt the card is at fault, it'll be your
settings :)

Ben
_______________________________________________
mythtv-users mailing list
mythtv-users at mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

stinfo/mythtv-users