Hi Soeren,
On Wed, 3 Jun 2009, Soeren.Moch@xxxxxxxxxxxxxxxxxxxx wrote:
Soeren.Moch wrote:
For a few weeks I use a Nova-TD-Stick and was annoyed with dvb stream
errors, although the demod bit-error-rate (BER/UNC) was zero.
I could track down this problem to dib0700_streaming_ctrl:
When one channel is streaming and the other channel is switched on, the
stream of the already running channel gets broken.
I think this is a firmware bug and should be fixed there, but I attach a
driver patch, which solved the problem for me. (Kernel 2.6.29.1, FW
1.20, Nova-T-Stick + Nova-TD-Stick used together). Since I had to reduce
the urb count to 1, I consider this patch as quick hack, not a real
solution.
Probably the same problem exists with other dib0700 diversity/dual
devices, without a firmware fix a similar driver patch may be helpful.
Regards,
Soeren
Hi Patrick,
do you see any chance that somebody will fix the firmware?
:/ .
If not, can you take into consideration to remove the
dib0700_streaming_ctrl callback as in the (again) attached patch so
solve the switch-on problem?
I'd rather fix the streaming-enable command, which might be not correctly
implemented. Need to check. :(
The patch runs flawlessly on my vdr system
for weeks now. There are no negative side effects from reducing the urb
count to 1.
Hmm, on fast systems certainly not, but once the system is loaded or old
there might be data losses.
It would be nice to have other people trying this workaround on other
cards so that we know that it really helps and not just solves the problem
for you.
Patrick.
--
Mail: patrick.boettcher@xxxxxxx
WWW: http://www.wi-bw.tfh-wildau.de/~pboettch/
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