Some additional information: I unplugged the sat cable from the PCTV Sat and the 400i does not lock any channels. then i plugged a cable to the sat without cable in the 400i, booted and there was only one adapter left in /dev/dvb. halted the host, to put in both cables, still only one adapter in dvb. :( checked irq in bios and sound card had the same like the PCTV Sat. plugged the sat into another PCI, booted, both adapter available... The pctv sat tunes, the 400i does not tune anymore to any channel. signal varies from 2727 to e1e1 signal was before ~8e8e to 9898 PCTV Sat is: bttv1 PCTV 400i is: bttv0 /proc/interrupts: CPU0 0: 350310 XT-PIC timer 1: 10 XT-PIC i8042 2: 0 XT-PIC cascade 4: 1 XT-PIC serial 5: 2 XT-PIC ehci_hcd:usb1 8: 2 XT-PIC rtc 9: 0 XT-PIC acpi 10: 0 XT-PIC uhci_hcd:usb3, CMI8738-MC6 11: 808008 XT-PIC uhci_hcd:usb2, bttv1, bt878, eth0, nvidia 12: 40729 XT-PIC uhci_hcd:usb4, bttv0, bt878 14: 10664 XT-PIC ide0 15: 4482 XT-PIC ide1 NMI: 0 LOC: 350314 ERR: 337 Lukas -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available Url : http://www.linuxtv.org/pipermail/linux-dvb/attachments/20050908/9e096672/attachment.pgp