I am having difficulty getting a system to cooperate with a video camera using kdenlive and an IEEE1394 connection.

From running lshw, we can see there is a card for such connections recognized:

       *-firewire:0

            description: FireWire (IEEE 1394)

            product: VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller

            vendor: VIA Technologies, Inc.

            physical id: 6

            bus info: pci@0000:04:06.0

            version: 46

            width: 32 bits

            clock: 33MHz

            capabilities: pm ohci bus_master cap_list

            configuration: driver=firewire_ohci latency=32 maxlatency=32

            resources: irq:20 memory:fe701000-fe7017ff ioport:c080(size=128)

       *-firewire:1

            description: FireWire (IEEE 1394)

            product: VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller

            vendor: VIA Technologies, Inc.

            physical id: e

            bus info: pci@0000:04:0e.0

            version: c0

            width: 32 bits

            clock: 33MHz

            capabilities: pm ohci bus_master cap_list

            configuration: driver=firewire_ohci latency=32 maxlatency=32

            resources: irq:22 memory:fe700000-fe7007ff ioport:c000(size=128)

The installed system is Ubuntu 15.04. The camera is a SONY HVR-HD1000U.

Screenshot from kdenlive when the camera is hooked up to the computer and working in playback mode: