On 7/15/20 2:02 PM, Walter Cazzola wrote:
On Tue, 14 Jul 2020, Samuel Sieb wrote:
Do an "ls -l /dev/video*" before plugging it in and then again after
it's recognized to see if any devices are getting created.
Before I've
>ll /dev/video*
crw-rw----+ 1 root video 81, 0 Jul 15 06:44 /dev/video0
crw-rw----+ 1 root video 81, 1 Jul 15 06:44 /dev/video1
after I've
>ll /dev/video*
crw-rw----+ 1 root video 81, 0 Jul 15 06:44 /dev/video0
crw-rw----+ 1 root video 81, 1 Jul 15 06:44 /dev/video1
crw------- 1 root root 81, 2 Jul 15 22:43 /dev/video2
crw------- 1 root root 81, 3 Jul 15 22:43 /dev/video3
So it is getting recognized and added.
Try "sudo dnf install uvcdynctrl", it might already be installed. Then
run "uvcdynctrl -l" and see what you get.
What is the output of "lsusb -v" when it's recognized.
To long to have it here. The result about the camera is attached.
That looks right. It shows the different resolutions it can do.
To me, it seems that the camera uses the uvcvideo driver and the problem is
related to all those "not initialized" errors. But I've no idea how to fix
them.
I think those might just be warnings.
Have you tried other USB ports? Do you have a USB hub you could try?
Maybe a different USB cable as well.
Yes, still the same behavior: sometimes it is recognized, sometimes it
is not.
Never show up in the usable devices. One more thing I noticed is that
once it
is recognized if I run multiple times the lsusb command it shows up with
different device number. E.g.,
>lsusb | grep IPEVO
Bus 003 Device 016: ID 1778:d120 IPEVO Inc. IPEVO VZ-X
>lsusb | grep IPEVO
Bus 003 Device 019: ID 1778:d120 IPEVO Inc. IPEVO VZ-X
And sometimes doesn't show up in the list.
If you check the logs, I expect you'll find that it has disconnected and
reconnected. Can you try it on a different computer? I'm wondering if
there is actually a hardware problem with the device.
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