[mythtv-users] 2nd PVR150 chosen first in LiveTV, but freezes

[mythtv at payne.ch]

(I'm using Mythdora5)
Last week I deleted & recreated the capture cards in my BE after  
removing a DVB-T card (HVR1300). I now have 2 PVR150s on /dev/video0 &  
/dev/video1 named PVR1 & PVR2. They are shown in that order in setup.

I have now found that, when I enter LiveTV, the second card PVR2 is  
always chosen first, but  I can't change channels. I can select the  
menu and switch to PVR1 where I can change channels etc. If I then  
switch back to PVR2 it works fine.

I also noticed that when starting LiveTV there is no OSD on PVR2  
showing the current program, and if I try to change channels by  
entering a channel number directly LiveTV freezes on the first digit  
and I find the following in the frontend log.

2008-06-29 12:10:12.371 TV: Changing from None to WatchingLiveTV
2008-06-29 12:10:12.374 The realtime priority setting is not enabled.
2008-06-29 12:10:12.477 Video timing method: USleep with busy wait
2008-06-29 12:10:15.708 couldn't find base dialog
2008-06-29 12:10:17.744 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:19.750 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:21.755 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:23.760 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:25.765 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:27.770 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:29.775 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:31.785 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:33.794 NVP: Timed out waiting for free video buffers.
2008-06-29 12:10:35.813 NVP: Timed out waiting for free video buffers.

I found the troubleshooting section about the NVP messages and  
switched off gl effects etc but it still happens.

Any ideas?

John