Hi Paul Sorry if you have already checked it, but: are you sure that the privacy switch is not toggled on your device? https://dl.dell.com/topicspdf/inspiron-16-7610-laptop_users-guide_en-us.pdf Can you try running yavta with something like: yavta -l --capture=3 -F /dev/video0 and then shading the output of yavta, and maybe also the generated file frame-000002.bin Thanks On Mon, 13 Feb 2023 at 15:04, Paul Neelands <paulnee@xxxxxxxxxxxx> wrote: > > Attached is kern.log after running and closing 'cheese' and then > 'webcamoid'. > > Thanks for all your input. > > Paul > > --------------------------------------- > > On 2/13/23 07:21, Laurent Pinchart wrote: > > Hi Paul, > > > > On Sun, Feb 12, 2023 at 07:14:46PM -0500, Paul Neelands wrote: > >> Cheese gives a black screen with the light on. > >> > >> Webcamoid does the same. > >> > >> Zoom does the same. > > Could you send me the kernel log after running one of those applications > > ? > > > >> Attached is the output of v4l-info. > >> > >> All of these work on the Inspiron 15 3000 but not on the Inspiron 16. > >> They both have the same camera. The only difference is that the Inspiron > >> 15 camera is on usb bus 1 while the Inspiron 16 camera is on usb bus 2. > >> > >> Thanks for the reply. > >> > >> Paul > >> > >> ------------------------- > >> > >> On 2/12/23 18:23, Laurent Pinchart wrote: > >>> Hi Paul, > >>> > >>> Please don't drop the mailing list in your replies. > >>> > >>> On Sun, Feb 12, 2023 at 05:06:37PM -0500, Paul Neelands wrote: > >>>> Hi, > >>>> > >>>> Thanks for the reply. > >>>> > >>>> There is only one video device so I am confused about video0 & video1. > >>>> > >>>> > >>>> ls -l /dev/video* > >>>> crw-rw----+ 1 root video 81, 0 Feb 12 16:23 /dev/video0 > >>>> crw-rw----+ 1 root video 81, 1 Feb 12 16:23 /dev/video1 > >>>> > >>>> ls -l /sys/class/video4linux/video* > >>>> lrwxrwxrwx 1 root root 0 Feb 12 16:23 /sys/class/video4linux/video0-> > >>>> ../../devices/pci0000:00/0000:00:14.0/usb2/2-6/2-6:1.0/video4linux/video0 > >>>> lrwxrwxrwx 1 root root 0 Feb 12 16:23 /sys/class/video4linux/video1-> > >>>> ../../devices/pci0000:00/0000:00:14.0/usb2/2-6/2-6:1.0/video4linux/video1 > >>>> > >>>> lsusb -v -d 0c45:6739 is attached as file lsusb. > >>>> > >>>> */var/log/kern.**log is attached as file klog* > >>> Nothing strikes me as wrong there. You said your webcam doesn't work, > >>> could you please elaborate ? > >>> > >>>> On 2/12/23 16:04, Laurent Pinchart wrote: > >>>>> Hi Paul, > >>>>> > >>>>> (CC'ing the linux-media mailing list) > >>>>> > >>>>> On Sun, Feb 12, 2023 at 02:51:33PM -0500, Paul Neelands wrote: > >>>>>> Hi. > >>>>>> > >>>>>> I have a new dell Inspiron 16 5620 where the camera doesn't work. The camera > >>>>>> is the same as a Dell Inspiron 15 3000 that I have where it works. The > >>>>>> difference between the two machines is that on the I15 it is on usb bus 1 > >>>>>> whereas it is on bus 2 on the I16. > >>>>>> > >>>>>> I downloaded and built the latest kernel 6.2.0-rc7 and no joy. I looked at your > >>>>>> driver for the camera uvcvideo but haven't yet figured out where it finds the > >>>>>> usb bus. The lsusb of the camera is: > >>>>>> > >>>>>> Bus 002 Device 004: ID 0c45:6739 Microdia Integrated_Webcam_FHD > >>>>>> > >>>>>> The kernel finds it with the demsg: > >>>>>> > >>>>>> 13.999455] usb 2-6: Found UVC 1.00 device Integrated_Webcam_FHD (0c45:6739) > >>>>>> 14.059462] usbcore: registered new interface driver uvcvideo > >>>>>> > >>>>>> I would really appreciate some help on where and how the usb bus gets > >>>>>> enumerated for the camera. > >>>>> What's the output of `ls -l /sys/class/video4linux/video*/` and > >>>>> `ls -l /dev/video*` ? > >>>>> > >>>>> Could you provide your full kernel log, as well as the output of > >>>>> `lsusb -v -d 0c45:6739` (if possible running as root, for instance with > >>>>> sudo) ? -- Ricardo Ribalda
