[linux-dvb] scan tool tells WARNING: filter timeout

[Boris Lenzinger <boris.lenzinger@castify.net>]

Hi,
I've a Nexus-s with CI on a Fedora Core 2 (kernel 2.6.5). Modules seems 
to be loaded (lsmod tells it).
I'm trying to scan the channels but the scan tool gives the following trace:

=============================================

[commandLine]./scan -p -s 1 -t 1 -o vdr dvb-s/Astra-19.2E

scanning dvb-s/Astra-19.2E
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 12551500 V 22000000 5
>>> tune to: 12551:v:S0.0W:22000:

WARNING: filter timeout pid 0x0011
WARNING: filter timeout pid 0x0000
WARNING: filter timeout pid 0x0010
dumping lists (0 services)
Done.

=============================================

The thing is that I can do a szap:

=============================================

./szap -f /root/fromVdrBox/vdrbox.free.fr/channels.conf "VIVA"
reading channels from file '/root/.szap/channels.conf'
zapping to 102 'VIVA':
sat 0, frequency = 12670 MHz V, symbolrate 22000000, vpid = 0x0135, apid 
= 0x0136
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
status 07 | signal c312 | snr bd7e | ber 00001700 | unc 00000000 |
status 1f | signal c58f | snr e7f6 | ber 00000400 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal c579 | snr e7c6 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK

=============================================

(the channels.conf comes from a web site).

version of dvb-apps: 1.1.0
Version of dvb: the one delivered with Fedora Core 2 (kernel 2.6.5)

I don't understand why scan fails and szap can have a lock. Has anyone 
an idea about this ?
Moreover I tried the dvbsnoop tool but its scan also fails.

Thanks in advance.
If there are missing information, please ask.

Boris