The webcams Genius 1300 V2 and Genius 1300AF V2 (and probably some built-in MacBook iSight webcams) face an issue since v2.6.39. For versions before that, they work fine. Every application displays a black screen for the devices except for mplayer which displays a green screen. Output of lsusb -vvv -d 0458:7067 http://pastebin.com/9R9atS9L Output of mplayer tv:// -tv driver=v4l2:width=640:height=480:device=/dev/video0 -fps 30 http://pastebin.com/pHuaKDv8 On doing git bisect, I was able to find the commit which brings the regression. It's commit e1620d591a75a10b15cf61dbf8243a0b7e6731a2 titled USB: Move runtime PM callbacks to usb_device_pm_ops. A bug was reported with UVC on sourceforge by another user http://sourceforge.net/mailarchive/message.php?msg_id=29030464 Please fix this. Would hate to see this remain unfixed especially since I gave quite an amount of time to find the commit. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html