Unable to use STV680 based webcam with Jaunty (REGRESSION)

[Daniele Napolitano]

Since Jaunty release I'm not able to use STV680 based camera.

Steps to reproduce:
 - Plug in this camera
 - Check with every program (included gstreamer-properties) that there are no video devices

Workaround:
 - Plug in this camera
 - Unload stv680 module (sudo rmmod stv680)
 - Load stv680 module (sudo modprobe stv680)

Another problem is the this driver is only v4l compliant, not v4l2.

lsusb:
Bus 004 Device 002: ID 0553:0202 STMicroelectronics Imaging Division (VLSI Vision) Aiptek PenCam 1

dmesg log on plugin:
[42575.156031] usb 4-1: new full speed USB device using uhci_hcd and address 2
[42575.439697] usb 4-1: configuration #1 chosen from 1 choice
[42575.570979] Linux video capture interface: v2.00
[42575.622388] stv680 [stv680_probe:1433]
[42575.622390] STV(i): STV0680 camera found.<6>stv680 [stv680_probe:1474]
[42575.622471] STV(i): registered new video device: video0<6>usbcore: registered new interface driver stv680
[42575.622500] stv680 [usb_stv680_init:1555]
[42575.622501] STV(i): usb camera driver version v0.25 registering<6>stv680: v0.25:STV0680 USB Camera Driver
[42575.750922] stv680 [stv_init:381]
[42575.750924] STV(i): QVGA is supported<6>stv680 [stv_init:397]
[42575.760921] STV(i): Camera has 0 pictures.<6>stv680 [stv_init:381]
[42575.973878] STV(i): QVGA is supported<6>stv680 [stv_init:397]
[42575.983876] STV(i): Camera has 0 pictures.<6>stv680 [usb_stv680_remove_disconnected:1511]
[42576.195936] STV(i): STV0680 disconnected

[Stefan Bader (smb)]

Several questions:
1. which kernel was the last known to work?
2. does workaround mean it works after unloading and loading the module?
    If so, can we have a dmesg with and without the workaround being done?
3. Can you try the 2.6.30 from https://wiki.ubuntu.com/KernelMainlineBuilds
    (should be that http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.30/)

[Daniele Napolitano (dnax88)]

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.

[dougfractal (dougs-b)]

This worked for me

<code>
pkill gvfs-gphoto2-volume-monitor
sudo apt-get install xawtv
sudo rmmod stv680
sudo modprobe stv680 swapRGB_on=-1
ls /dev/video*
</code>

[Daniele Napolitano (dnax88)]

The original module v4l1 stv680 is deprecated, now there is a new v4l2 module gspca_stv0680 and work well.

Tested with 2.6.37-020637rc3-generic.

[Brad Figg (brad-figg)]

Jaunty is no longer supported. If this issue still exists for a supported series, please open a new bug.