Finally got around to dual-booting and all was going well. I was surprised to see that the webcam on my Vaio worked straight away. However, some time between one boot and another the webcam mysteriously stopped working..
Here is the last time it worked:
Jun 6 23:12:51 dillinga kernel: uvcvideo: Found UVC 1.00 device <unnamed> (05ca:1837)
Jun 6 23:12:51 dillinga kernel: input: UVC Camera (05ca:1837) as /devices/pci0000:00/0000:00:1a.7/usb1/1-2/1-2:1.0/input/input12
Then the next boot:
Jun 6 23:41:48 dillinga kernel: uvcvideo: Found UVC 1.00 device <unnamed> (05ca:1837)
Jun 6 23:41:48 dillinga kernel: uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
Jun 6 23:41:48 dillinga kernel: uvcvideo: Failed to query (129) UVC probe control : -32 (exp. 26).
Jun 6 23:41:48 dillinga kernel: uvcvideo: Failed to initialize the device (-5).
Jun 6 23:41:48 dillinga kernel: usbcore: registered new interface driver uvcvideo
Jun 6 23:41:48 dillinga kernel: USB Video Class driver (v0.1.0)
I've checked the rpmdb and I can't see anything installed between these times. I thought this might have been an issue introduced after the full 'yum update' but I can see I booted using the newer kernel each time so this seems unlikely.
I can still see the device in lsusb:
Bus 001 Device 002: ID 05ca:1837 Ricoh Co., Ltd Visual Communication Camera VGP-VCC4 [R5U870]
An rmmod uvcvideo && modprobe uvcvideo just shows the same error.
---------- Post added at 08:43 PM CDT ---------- Previous post was at 07:51 PM CDT ----------
So I decided to boot into windows and make sure all was OK - and it was.
Then I came back into Fedora and suddenly the camera was working again!
I thought I'd reboot just to see if anything changed and alas here I am again with no webcam and the same error.
Any ideas why this might be happening?