Hi Filippo, On Friday 07 November 2008, Filippo Argiolas wrote: > Hi, > I'm a Cheese developer, recently many users (mainly from ubuntu > intrepid) reported us several issues with uvcvideo drivers. > Actually they reported many issues with the other webcam drivers too, > probably related to the changes in webcam drivers with 2.27 kernels > (gspca v2, uvcvideo included into mainline, strange formats decoding > moved to userspace, apps switching to libv4l..). Probably some > regression went in too with so much changes, but I'm just guessing. > > This particular issue with uvcvideo seems to happen both with cheese > and gstreamer alone, some ioctl call locks the webcam making it > unusable anymore without reloading the module. > I'm personally experiencing the issue only if use my microdia (I don't > have access to my laptop now, will provide the exact id later) webcam > at the maximum supported resolution (1280x1024) , it works just fine > with the other ones. > But as soon as I try to access it with > gst-launch-0.10 v4l2src ! video/x-raw-yuv, width=1280, height=1024 ! > xvimagesink the light turns off and the webcam is no more usable. > > Other users reported slightly different behaviours but all end up with > a webcam lock. You can find more info at the correspondent bugzilla > and launchpad bugs: > > https://bugs.launchpad.net/bugs/290506 > http://bugzilla.gnome.org/show_bug.cgi?id=559057 > > It seems the driver works fine with other software so maybe it is a > gstreamer only issue but other drivers work nicely so I think it's > still a driver issue. > Could you give me some little help to better triage this thing and fix > it in the right place?
Could you please check the kernel log (dmesg) for error messages printed by the uvcvideo driver after locking the camera/driver ? Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
