Same problem here with Quickcam Pro 4000. "sudo modprobe -r pwc" workaround does not work for me. I just can't make it works.
[4259259.912998] pwc: Philips webcam module version 10.0.13 loaded. [4259259.913001] pwc: Supports Philips PCA645/646, PCVC675/680/690, PCVC720[40]/730/740/750 & PCVC830/840. [4259259.913002] pwc: Also supports the Askey VC010, various Logitech Quickcams, Samsung MPC-C10 and MPC-C30, [4259259.913004] pwc: the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite VCS-UC300 and VCS-UM100. [4259259.913030] pwc: Logitech QuickCam 4000 Pro USB webcam detected. [4259259.913076] pwc: Registered as /dev/video0. [4259260.412038] input: PWC snapshot button as /devices/pci0000:00/0000:00:1d.2/usb8/8-1/input/input20 [4259260.412094] usbcore: registered new interface driver Philips webcam -- Logitech QuickCam USB webcams using pwc module (Pro, 3000, 4000) do not work if connected after booting https://bugs.launchpad.net/bugs/443278 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs