Description of problem: Pulling the plug on a uvcvideo device while the device is open confuses HAL, and results in permissions being denied to it when it's re-attached. Version-Release number of selected component (if applicable): kernel-2.6.27.10-167.fc10.x86_64 hal-0.5.12-12.20081027git.fc10.x86_64 udev-127-3.fc10.x86_64 libv4l-0.5.7-1.fc10.x86_64 How reproducible: Always. Steps to Reproduce: 1. Start Cheese, wait for preview to show. 2. Disconnect or use hotkey to disable camera. 3. Close Cheese. 4. Reconnect camera. 5. Attempt to start Cheese --- not permission denied on /dev/video0. 6. Check what HAL thinks, note extra camera device that wasn't there before. 7. Disconnect camera. 8. Reconnect, wait some. If it doesn't work now, goto 7. Actual results: HAL confusion, permissions denied. Expected results: No confusion. Additional info: The sequence Close Cheese -> Detach -> Attach -> Start Cheese works OK with no confusion or permission problems. Only one such device shows up in sysfs, although a number may be present in HAL. When it's working, [james@rhapsody ~]$ ls -Z /dev/video0 crw-rw---- root root system_u:object_r:v4l_device_t:s0 /dev/video0 [james@rhapsody ~]$ chacl -l /dev/video0 /dev/video0 [u::rw-,u:james:rw-,g::rw-,m::rw-,o::---] Following a live-yank and reconnect, [james@rhapsody ~]$ ls -Z /dev/video0 crw-rw---- root root system_u:object_r:v4l_device_t:s0 /dev/video0 [james@rhapsody ~]$ chacl -l /dev/video0 /dev/video0 [u::rw-,g::rw-,o::---] After a number of live-yank cycles, [james@rhapsody ~]$ hal-find-by-capability --capability video4linux /org/freedesktop/Hal/devices/usb_device_402_5606_noserial_if0_video4linux_2 /org/freedesktop/Hal/devices/usb_device_402_5606_noserial_if0_video4linux_1 /org/freedesktop/Hal/devices/usb_device_402_5606_noserial_if0_video4linux_0 /org/freedesktop/Hal/devices/usb_device_402_5606_noserial_if0_video4linux dmesg info on the camera: uvcvideo: Found UVC 1.00 device USB2.0 Camera (0402:5606) uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. input: USB2.0 Camera as /devices/pci0000:00/0000:00:1a.7/usb1/1-2/1-2:1.0/input/input27 usb 1-2: New USB device found, idVendor=0402, idProduct=5606 usb 1-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0 usb 1-2: Product: USB2.0 Camera
Still present with: kernel-2.6.29.1-68.fc11.x86_64 hal-0.5.12-26.20090226git.fc11.x86_64 DeviceKit-003-1.x86_64 udev-139-4.fc11.x86_64 libv4l-0.5.9-1.fc11.x86_64
Still shows up with kernel-2.6.29.5-186.fc11.x86_64 hal-0.5.12-26.20090226git.fc11.x86_64 DeviceKit-003-1.x86_64 udev-141-3.fc11.x86_64
Have you tried with the latest hal package in Fedora 11 or tried Rawhide? In either case, can you let us know whether the issue is still happening, and give the current version of the HAL packages you're using? -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
Seems to be behaving itself now with: hal-0.5.12-29.20090226git.fc11.x86_64 DeviceKit-003-1.x86_64 udev-141-6.fc11.x86_64 and a 2.6.31-rc9 kernel.