Can't switch from hi band to lo band

[lawrence]

My brand new 6981 has a problem tuning lo band transponders.

I have a universal LNB. If I use szap or szap-s2 to tune to a hi-band transponder (LNB tone on) then it locks immediately. However, if I tune a lo-band transponder (LNB tone off) then it doesn't lock until I disconnect and re-connect the LNB. Once locked, the reception is fine. The LNB works OK with other STB's and dvb-s cards. Apart from this the card works fine.

Anyone have any ideas?

Feels like a s/w problem, possibly with the tbs6981fe_driver.o but I'm unable to debug as there's no source.

I'm using a customised version of linux-tbs-drivers_110806 built for Linux 2.6.39