[mythtv-users] Live tv gives blue screen, but videos work fine

[Steve Peters - Priority Electronics]

>
>>Hello, I have a laptop that I use for a mythfrontend. It has 
>an external
>lcd hooked up to it since 
>>the main lcd is broken.
>>
>>I can't for the life of me get live tv to work. I have videos 
>set to play
>with mplayer, and that 
>>seems to be working, but live tv only shows a blue image. The 
>laptop is an
>IBM R50 with an ATI 
>>Radeon Mobility 7500 video card.
>>
>>
>
>OK, attached is the mythtv frontend playback log. This was 
>just hitting live
>tv (SD TV) for about a minute, then exiting. The lines I 
>thought were most
>important are:
>
>VideoOutputXv: Unreasonable refresh rate 247070Hz reported by X
>nVidiaVideoSync: Could not open device /dev/nvidia0, No such device or
>address
>

Does anyone have any idea on this one?
-Thanks
-Steve