[mythtv-users] Problems with HVR 1300 and DVB-T on recent kernels

[Martin Kittel]

Hi,

I recently upgraded my amd64 Debian MythTV box  with a Haupauge HVR1300
from Debian kernel 2.6.26 to 2.6.30 and could not get a channel lock for
my DVB-T tv channels any more (btw, I am using current Debian packages
from debian-multimedia).

I then did some quick testing with vanilla linux kernels starting with
2.6.27
with the following results:
2.6.27: seems to work fine
2.6.28: channel lock could not be acquired reliably; sometimes switching
channels worked fine, most of the time it failed
2.6.29: could not get any channel locks
2.6.30: the same, no channel lock
2.6.31-rc7: the same, no channel locks

At first I suspected the driver to have a problem but other applications
such as 'scan' still can see all channels with 2.6.31-rc7 (I also tried
kaffeine which found most of the channels but not all).

I tried various settings for the channel scan time out with no luck. I
also tried importing the channels.conf I generated with scan (and whose
output is the same for both 2.6.26 and 2.6.31-rc7) but in that case
mythtv-setup crashed on me most of the time.

Any idea what could go wrong after the update? I am only using the DVB-T
input of the card, no analogue capturing. Removing the cx88_blackbird
module did not change anything.

Thanks and best wishes,

Martin.