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) ? -- Regards, Laurent Pinchart
