TT S2-3650CI problems with high-SR DVB-S2 transponders

[Doychin Dokov <root@net1.cc>]

I've been trying to get TechnoTrend S2-3650CI running with DVB-S2 
transponder with SR of 30000. I'm using stock Debian 6 kernel 
2.6.32-5-amd64 and s2-liplianin tree.

Initially, the device couldn't lock the 30K transponders at all. After 
applying patch [1], it locks without any problems, and does so very fast:
sat 0, frequency 11632 MHz V, symbolrate 30000000, coderate auto, 
rolloff 0.35
vpid 0x1fff, apid 0x1fff, sid 0x0000
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
status 00 | signal 0000 | snr 0004 | ber 00000000 | unc fffffffe |
status 1b | signal 05aa | snr 0023 | ber 00516155 | unc fffffffe | 
FE_HAS_LOCK
This happens each and every time I try. So far, so good, but when I'm 
trying to stream a PID with dvblast, I get lots of TS discontinuities. 
It does read the NIT and PAT fine, but nothing else is nearly-usable.

I've then tried the STB6100 patch [2], but it does not seem to do any 
help in this case.

Any ideas?