[mythtv-users] Xorg config... getting display size correct

Warren warren-lists at icruise.com
Wed Apr 5 13:21:52 UTC 2006


Stephen Rowles wrote:
> Hi all,
>
> I now have my lovely new hardware built, and Fedora Core 5 installed 
> (because it supports the new via SP1300 out of the box)
>
> I have everything installed and working - YAY!
>
> but only 1 problem, getting the video output to fill the whole screen :(
>
> Currently I have a small 4:3 ratio box in the middle of the screen, and 
> cannot figure out how to make the display cover the whole screen.
>
> I followed the instuctions and sample xorg config file from here:
>
> http://www.kingcot.eclipse.co.uk/unichrome/unichromeTvOut.html
>
> but on my Sony 28inch widescreen TV I don't get anything close to 
> widescreen.
>
> Its not ever the correct size for the "zoom" setting, as this cuts off 
> the top of the screen and still leaves small black bars on the left and 
> right.
>
> I've tried starting the desktop and using xvidtune but usually that just 
> ends up with the whole screen being unreadable due to sync problems.
>
> Any expert X tuners out there who could help?
>
> Cheers.
>
>
>
> Xorg.conf (relevant sections)
>
> Section "Monitor"
>   Identifier   "MonitorTv"
>   VendorName   ""
>   ModelName    "TV-PAL"
>   HorizSync    24.0 - 80.0
>   VertRefresh  50.0 - 75.0
>   #Option      "nodpms"
>   #Option      "noddc"
>   # Set for 4:3 display
>   # DisplaySize 300 225
>   # Set for 16:9 display
>   DisplaySize 400 225
>
>   ModeLine "720x576" 32.7 720 744 816 912 576 577 580 597
>
> EndSection
>
> Section "Device"
>   Identifier  "VideocardViaTv"
>   Driver      "via"
>   VendorName  "Via"
>   BoardName   "CN400"
>   #Option  "PciRetry" "true"
>   # VideoRam    32768
>   # Option      "ActiveDevice" "CRT,TV"
>   # Option      "UseBIOS" "true"
>     Option      "TVType" "PAL"
>     Option      "TVOutput" "S-Video"
>   # Option      "TVOutput" "Composite"
>   # Option      "TVOutput" "RGB"
>   # Option      "TVVScan" "over"
>   # Option      "TVVScan" "under"
>   # Option      "TVDotCrawl"
>   # Option      "DisableVQ" "true"
>   # Option      "NoDDCValue"
>   # Option      "HQVManualSwitch"
>   # Option      "NoHQVVFilter"
>   # Option      "CaptureOverScanOff"
>   # Option      "Cap0Deinterlace" "Bob"
>   # Option      "Cap0Deinterlace" "Weave"
>   #        Option      "Cap1Deinterlace" "Bob"
>   #        Option      "Cap1Deinterlace" "Weave"
>   # Option      "Cap0FieldSwap"
>   # Option      "NoCap0HFilter"
>   # Option      "NoCap1HFilter"
>     Option       "EnableAGPDMA" "true"
> EndSection
>
> Section "Screen"
>         Identifier "Screen0"
>         Device     "VideocardViaTv"
>         Monitor    "MonitorTv"
>         DefaultDepth     24
>         SubSection "Display"
>                 Viewport   0 0
>                 Depth     24
>     Modes    "720x576"
>
>         EndSubSection
> EndSection
>
>
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>   
Change your "Modes" from "720x576" to "720x576Over" to enable overscan.

W


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