[mythtv-users] Audio Sync Issues with HD-PVR.

Alan Young ayoung at teleport.com
Sat Oct 22 19:12:17 UTC 2011

On 10/22/2011 05:16 AM, Jan Johansson wrote:
> A quick update here. It is not the resolution changes. A recording from a 
> non-commercial channel still has the same offset problem. The issue seem to 
> be if the recording has 2 or 6 channel sound. Two channel seem fine. Six 
> channel seem to get the drift. I guess I will have to wait until 0x17 can be 
> used and check again :)

I recall having a drift problem a long time ago.  I'm using the HD-PVR with a 
DirecTV H20 component + SPDIF.  I think I fixed it by using a different 
firmware and possibly a different SPDIF cable.  In my setup, I know things do 
not work well if the cable is not seated well on both ends.

I'm not sure I saw what version of the firmware you are using.  I'm using the version that is on the hauppauge site.  In the kernel log it shows as

[    3.909924] hdpvr 1-2:1.0: firmware version 0x15 dated Jun 17 2010 09:26:53

if you are running a older kernel that does not print the date, use the 
strings command on the .ROM file that is in the driver zip to see the date.

There are some older HD-PVR drivers here 
http://www.shspvr.com/ftp/download/wintv-hdpvr .  A couple of those are beta, 
so YMMV.  Some are WHQL, so those should be stable.  Just remember to do 
HWCLEAR when switching between them.


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