Hi laurent it's me (again :-) )
I've done a modprobe uvcvideo trace=255 (I found how to do) here is the trace in the dmesg : Linux video capture interface: v2.00 uvcvideo: Adding mapping Brightness to control 00000000-0000-0000-0000-000000000101/2. uvcvideo: Adding mapping Contrast to control 00000000-0000-0000-0000-000000000101/3. uvcvideo: Adding mapping Hue to control 00000000-0000-0000-0000-000000000101/6. uvcvideo: Adding mapping Saturation to control 00000000-0000-0000-0000-000000000101/7. uvcvideo: Adding mapping Sharpness to control 00000000-0000-0000-0000-000000000101/8. uvcvideo: Adding mapping Gamma to control 00000000-0000-0000-0000-000000000101/9. uvcvideo: Adding mapping Backlight Compensation to control 00000000-0000-0000-0000-000000000101/1. uvcvideo: Adding mapping Gain to control 00000000-0000-0000-0000-000000000101/4. uvcvideo: Adding mapping Power Line Frequency to control 00000000-0000-0000-0000-000000000101/5. uvcvideo: Adding mapping Hue, Auto to control 00000000-0000-0000-0000-000000000101/16. uvcvideo: Adding mapping Pan (relative) to control 63610682-5070-49ab-b8cc-b3855e8d2256/1. uvcvideo: Adding mapping Tilt (relative) to control 63610682-5070-49ab-b8cc-b3855e8d2256/1. uvcvideo: Adding mapping Pan/Tilt (reset) to control 63610682-5070-49ab-b8cc-b3855e8d2256/2. uvcvideo: Adding mapping Exposure, Auto to control 00000000-0000-0000-0000-000000000001/2. uvcvideo: Adding mapping Exposure (Absolute) to control 00000000-0000-0000-0000-000000000001/4. uvcvideo: Adding mapping White Balance Temperature, Auto to control 00000000-0000-0000-0000-000000000101/11. uvcvideo: Adding mapping White Balance Temperature to control 00000000-0000-0000-0000-000000000101/10. uvcvideo: Probing known UVC device 6 (5986:0100) uvcvideo: Found format MJPEG. uvcvideo: - 640x480 (30.0 fps) uvcvideo: - 320x240 (30.0 fps) uvcvideo: - 160x120 (30.0 fps) uvcvideo: - 352x288 (30.0 fps) uvcvideo: - 176x144 (30.0 fps) uvcvideo: Found format YUV 4:2:2 (YUYV). uvcvideo: - 640x480 (30.0 fps) uvcvideo: - 320x240 (30.0 fps) uvcvideo: - 160x120 (30.0 fps) uvcvideo: - 352x288 (30.0 fps) uvcvideo: - 176x144 (30.0 fps) uvcvideo: Found a Status endpoint (addr 82). uvcvideo: Found UVC 1.00 device USB2.0 Camera (5986:0100) uvcvideo: Added control 00000000-0000-0000-0000-000000000101/2 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/3 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/6 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/7 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/8 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/9 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/1 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/5 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000001/2 to device 6 entity 1 uvcvideo: Added control 00000000-0000-0000-0000-000000000001/4 to device 6 entity 1 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/11 to device 6 entity 5 uvcvideo: Added control 00000000-0000-0000-0000-000000000101/10 to device 6 entity 5 uvcvideo: Scanning UVC chain: OT 3 <- XU 6 <- PU 5 <- SU 4 <- IT 1 uvcvideo: Found a valid video chain (1 -> 3). uvcvideo: UVC device initialized. usbcore: registered new interface driver uvcvideo USB Video Class driver (v0.1.0) Is it interesting for you? Maybe my modprobe.conf should have some special options for the webcam? Mick 2007/8/18, Mickael Drean <[EMAIL PROTECTED]>: > > You are true for that error, I didn't get it anymore..... > > > But I still have a black screen and nothing in dmesg > > > Mick > > 2007/8/18, Laurent Pinchart < [EMAIL PROTECTED]>: > > > > On Saturday 18 August 2007, Mickael Drean wrote: > > > 2007/8/18, Laurent Pinchart <[EMAIL PROTECTED]>: > > > > Hi Mickaël, > > > > > > > > On Saturday 18 August 2007, Mickael Drean wrote: > > > > > I've tested to launch luvcvideo on GNOME instead of KDE and I get > > an > > > > > > > > error > > > > > > > > > message : > > > > > luvcview version 0.2.1 > > > > > Video driver: x11 > > > > > A window manager is available > > > > > video /dev/video0 > > > > > Unable to set format: 16. > > > > > Init v4L2 failed !! exit fatal > > > > > > > > What do you get in dmesg ? > > > > > > Nothing, but you talked about possibility to add trace with a '255' > > value. > > > I didn't do it because I don't know how to do it, could you please > > specify > > > me how to do maybe we will have more info with thoses traces. > > > > Error 16 is EBUSY. You can't stream from the webcam using two programs > > at > > once. Are you sure that there wasn't still an old instance of luvcview > > running ? > > > > Laurent Pinchart > > > >
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