Since you have two cables, you must different cables for both.
Also I'm sure, you must tell the VDR witch dvb card can recice witch satelite. Please ask in the VDR Portal how to do this.
I registered on VDR portal as you suggested, the guys over there told me that it can be done using diseqc.conf file.
the right diseqc.conf should be as follows:
1:
S7W 11700 V 9750 t v W50 [E0 00 00] W50 [E0 00 03] W150 [E0 10 38 F4] W50 t
S7W 11700 H 9750 t V W50 [E0 00 00] W50 [E0 00 03] W150 [E0 10 38 F6] W50 t
S7W 99999 V 10600 t v W50 [E0 00 00] W50 [E0 00 03] W150 [E0 10 38 F5] W50 T
S7W 99999 H 10600 t V W50 [E0 00 00] W50 [E0 00 03] W150 [E0 10 38 F7] W50 T
2:
S13E 11700 V 9750 t v W50 [E0 00 00] W50 [E0 00 03] W150 [E0 10 38 F0] W50 t
S13E 11700 H 9750 t V W50 [E0 00 00] W50 [E0 00 03] W150 [E0 10 38 F2] W50 t
S13E 99999 V 10600 t v W50 [E0 00 00] W50 [E0 00 03] W150 [E0 10 38 F1] W50 T
S13E 99999 H 10600 t V W50 [E0 00 00] W50 [E0 00 03] W150 [E0 10 38 F3] W50 T
It's different scenario because i decided to use 1st tuner for Nilesat and 2nd tuner for Hotbird.
@rfehr you were close to it because you advised me to edit diseqc.conf file.
Thank you all