Comment 2 for bug 387559

With kernel 2.6.31 on Karmic.

1. I don't remember, not use this camcorder for a while! Maybe 2.6.26.
2. See over:

a) Without workaround

- Plugin the STV680 based camera
[25129.224055] usb 4-1: new full speed USB device using uhci_hcd and address 7
[25129.505406] usb 4-1: configuration #1 chosen from 1 choice
[25129.508481] stv680 [stv680_probe:1429]
[25129.508483] STV(i): STV0680 camera found.
[25129.508564] stv680 [stv680_probe:1470]
[25129.508566] STV(i): registered new video device: video0
[25129.608287] stv680 [stv_init:382]
[25129.608290] STV(i): QVGA is supported
[25129.618232] stv680 [stv_init:398]
[25129.618234] STV(i): Camera has 0 pictures.
[25129.695260] stv680 [stv_init:382]
[25129.695263] STV(i): QVGA is supported
[25129.719863] stv680 [stv_init:398]
[25129.719866] STV(i): Camera has 0 pictures.

GNOME show the camera dialog (gvfs-gphoto) but from gstreamer-properites it is not listed.

b) With workaround

- Plugin the STV680 based camera
[25129.224055] usb 4-1: new full speed USB device using uhci_hcd and address 7
[25129.505406] usb 4-1: configuration #1 chosen from 1 choice
[25129.508481] stv680 [stv680_probe:1429]
[25129.508483] STV(i): STV0680 camera found.
[25129.508564] stv680 [stv680_probe:1470]
[25129.508566] STV(i): registered new video device: video0
[25129.608287] stv680 [stv_init:382]
[25129.608290] STV(i): QVGA is supported
[25129.618232] stv680 [stv_init:398]
[25129.618234] STV(i): Camera has 0 pictures.
[25129.695260] stv680 [stv_init:382]
[25129.695263] STV(i): QVGA is supported
[25129.719863] stv680 [stv_init:398]
[25129.719866] STV(i): Camera has 0 pictures.

- Unload stv680 module (sudo rmmod stv680)
[25999.530171] usbcore: deregistering interface driver stv680
[25999.531874] stv680 [usb_stv680_exit:1561]
[25999.531876] STV(i): driver deregistered

- Then load stv680 module (sudo modprobe stv680)
[26443.343894] stv680 [stv680_probe:1429]
[26443.343896] STV(i): STV0680 camera found.
[26443.347468] stv680 [stv680_probe:1470]
[26443.347470] STV(i): registered new video device: video0
[26443.347652] usbcore: registered new interface driver stv680
[26443.350129] stv680 [usb_stv680_init:1551]
[26443.350132] STV(i): usb camera driver version v0.25 registering
[26443.350136] stv680: v0.25:STV0680 USB Camera Driver
[26443.446037] stv680 [stv_init:382]
[26443.446039] STV(i): QVGA is supported
[26443.456042] stv680 [stv_init:398]
[26443.456044] STV(i): Camera has 0 pictures.
[26443.551015] stv680 [stv_init:429]
[26443.551017] STV(i): Video Mode set to QVGA
[26443.773022] stv680 [stv_stop_video:267]
[26443.773025] STV(i): Camera set to original resolution

Another workaround is killing gvfs-gphoto2-volume-monitor. Seems that gphoto block video output mode.