Ok still not working and i really don't understand why !
so i will explain all my config i hoep some on can help me :
first my hardware config :
so i have a ubuntnu serveur 14.04 lts x86 (32bit)
i found this error :
Sep 13 12:39:21 srv01 tvheadend[2465]: mpegts: 12551.5V in Astra - tuning on Montage Technology DS3000 : DVB-S #0
Sep 13 12:39:22 srv01 tvheadend[2465]: subscription: 0003: "scan" subscribing to mux "12551.5V", weight: 6, adapter: "Montage Technology DS3000 : DVB-S #0", network: "Astra", service: "Raw PID Subscription"
Sep 13 12:39:24 srv01 tvheadend[2465]: linuxdvb: Montage Technology DS3000 : DVB-S #0 - retune
Sep 13 12:39:25 srv01 tvheadend[2465]: pat: 12551.5V in Astra: invalid checksum (len 60, errors 1)
Sep 13 12:39:28 srv01 tvheadend[2465]: eit: 12551.5V in Astra: invalid checksum (len 160, errors 1)
Sep 13 12:39:31 srv01 tvheadend[2465]: mpegts: 12551.5V in Astra - scan no data, failed
Sep 13 12:39:31 srv01 tvheadend[2465]: subscription: 0003: "scan" unsubscribing