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DVB Radio "No TV Signal" Workaround

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I am currently investigating a fix for two DVB Radio issues identified a workaround for those affected.  If you are getting a "No TV Signal" blue overlay when tuning to a DVB Radio station, particularly a low-bitrate station like BBC World Service, or you are seeing 15+ second channel change times for changing between DVB Radio and DVB Video channels, this workaround may apply to you.

This involves editing your registry, so if you are not comfortable doing that, please wait for the binary fix to be released.

The key is:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Media Center\Service\Video\Tuners\DVR

Set NearUnderflowCheckMillis=4000 (0x00000fa0) .

If you are not experiencing problems with DVB Radio, do not change this value.  If you are in the U.S., for example, it can cause instability with ATSC tuning.  Once the binary fix is released, you should return this value to its original value of 2000 (decimal).

This is a non-supported, non-official workaround and is provided AS-IS, with no warranty.

Comments

  • Anonymous
    January 22, 2006
    Any chance we can have a nice picture insted of the blue screen when listening to DVB services ;)

    Thanks for the tip Peter :)
  • Anonymous
    January 23, 2006
    That's one of the features I would like to see in the product, too. Especially since there are video sent along with the audio data on some DVB Radio stations.

    Of course, prioritizing that against other Vista-release work items is a bit hard.
  • Anonymous
    January 30, 2006
    I have tried this out hoping it would fix the "No TV Signal" message that occurs for the first TV channel I tune to when I restart my system... but no luck.

    Peter - has MS been able to replicate this bug (I sent you details etc on it at the end of last year)?

    Thanks,
    Shane.




  • Anonymous
    January 30, 2006
    Shane -

    We have not seen the exact repro that you reported, though we are looking at a related issue with NTSC systems erroneously reporting DVB Radio (which should not be possible).

  • Anonymous
    February 01, 2006
    Peter,

    Is there anyone at Microsoft Australia (North Ryde Office) that I could show this to?

    There are quite a number of users with DVICO cards (and other cards using the same chipset) that are seeing this or similar on DVB-T.

    Love to help get it fixed.

    Thanks,
    Shane.
  • Anonymous
    February 05, 2006
    I wanted to list a few miscellaneous issues that have been found recently with Update Rollup 2 for Media...
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    February 05, 2006
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    February 09, 2006
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    February 20, 2006
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