Re: Dell Latitude 7420's camera not working on new F42 install

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On Mon, 2025-07-14 at 16:47 -0500, Ranjan Maitra via users wrote:
> 
> As an update, rebooting and waiting for the system to come up, that
> webpage above does say "Success" but the camera window is black.
> 
> Best wishes,
> Ranjan

BTW, Dell started including the mipi camera in models in 2022. (Intel
was not fast upstreaming these drivers into the kernel.)

Might be worth trying different browsers at that test page. There were
changes that had to be made to Firefox and Chrome to make this camera
work in browsers. For a long time, Firefox would only ever show a black
screen for me. I just tried both Chrome and Firefox on my Dell
Precision 5680, and both are successfully showing the webcam (but the
image is showing upside down, weird). 

You can also check for errors in dmesg output, although the device
names for the camera and the sensors are not always obvious.

I was going to suggest that if you wanted to be sure whether this model
included the mipi camera, you could just check your serial number (sudo
dmidecode -s system-serial-number) over at
https://www.dell.com/support/home/en-us and list the specs of the
build, but when I did that with my 5680, the camera description was
completely indecipherable.

Regards,
Ben

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