Also make sure to set an appropriate value to exposure and white balance. hue also seems to be set at an invalid value!!!
guvcview output: Hue, -4:1:4, default 0 Best regards, Paulo 2009/7/21 Paulo Assis <[email protected]>: > Tommaso, > > guvcview presents a standard output, as for dmesg: > > uvcvideo: Failed to query (129) UVC control 3 (unit 1) : -32 (exp. 1). > uvcvideo: device USB2.0 Camera requested null bandwidth, defaulting to lowest. > > I'm not sure if this could be the cause for the problems you are experiencing. > If you change the output format between MJPEG and YUV does it make any > difference (make sure to experiment with several resolutions and fps)? > > You could also increase uvcvideo trace level, if you didn't already. > > Best regards, > Paulo > > > > > 2009/7/21 Tommaso Gardumi <[email protected]> >> >> Hi Paul, thanks for the quick response, >> I've tried changing resolution and fps values, but no big changes. >> I see that switching to different resolutions and trying to >> resize/maximize the window, the images from the webcam doesn't resize >> accordingly (maybe it's the normal behaviour) >> I've attached the output of the two commands you suggested me. >> >> >> Il giorno mar, 21/07/2009 alle 14.29 +0100, Paulo Assis ha scritto: >> > guvcview --verbose > _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
