[mythtv-users] Mythtv/liveTV fades to grey....

[Mike Perkins]

plainfaceboy wrote:
> I've finally set up my UK Mythtv system and after a bit of fiddling have 
> generally got things working.
> I've not tested everything fully, but I've got a few niggles with 
> LiveTV. Quite often (it seems mainly when it's not been on long) it 
> fades to black and white and although the TV continues to play I can't 
> do anything - I'm assuming maybe the backend is busy but wouldn't expect 
> it to happen as often as it does? Sometimes happens on the menus too, 
> not just liveTV.
> 
> My system is;
> Asus m3n78-Pro, with NVidia 8200, Phenom x3 705e, 4GB, ITB HD, with 
> separate partition for recordings.
> Silverstone GD01 MXR case with LCD. Hauppauge HVR-4000 (1.22.82.0 
> firmware as per linuxtv.org).
> Am using built in LIRC and LCDProc and both seem to work fine (though 
> not fully configured)
> 
> MythTV 0.22 and latest fixes & Ubuntu 9.10 (32-bit)
> I've scanned both DVB-T and DVB-S and have channels from both appearing 
> in my list.
> Sometimes Live TV doesn't even start and returns to the menu, but then a 
> few tries later, sometimes after a reboot, it's fine again, though 
> sometimes with the fading to b&w.
> 
> Am using v4l-dvb-20091103 from hg.kewl.org.
> I did try the 2.6.32 kernel but it seemed to cause lots of problems so 
> am back on 2.6.31-14.
> 
> Are there some settings I need to tweak that might help with this? Does 
> anyone have any suggestions?
> I'm obviously at relatively early days with this install but would like 
> to get it more usable as soon as possible, so I can do the rest of the 
> set up at my leisure!
> Thanks for any help.
> 
What you haven't mentioned is the method you use to connect to your TV/display. 
VGA? HDMI? Scart? If so, from what video card output, and using what adaptor?
It sounds to me like there might be some kind of electrical mismatch between 
what your card is outputting and what your TV is expecting. Check your cables, 
look for possible earth loops or disconnects, try and find out what voltage 
levels you are outputting/your TV is expecting.

You have two separate problems here. Perhaps someone else can help with the 
tuner/V4L side.

-- 

Mike Perkins