GenesysLogic USB microscope + uvcvideo interferes with all input

[Roger Price]

I'm trying to use a USB microscope with Debian 11. When I plug it in
dmesg reports:

usb 1-1.2: Manufacturer: GenesysLogic Technology Co., Ltd.
uvcvideo: Found UVC 1.00 device USB2.0 UVC PC Camera (a16f:0304)

but when I run vlc v412:///dev/video0 , I see a black window flash every 10
seconds, and I loose control of all mouse and keyboard input. When I unplug the
camera, I recover mouse and keyboard.

I see that in 2017 someone got the camera to work with Ubuntu.
https://ubuntuforums.org/archive/index.php/t-2379144.html
Has anyone got this camera to work with Debian 11?

Roger

[Roger Price]

On Wed, 14 Sep 2022, Roger Price wrote:

> I'm trying to use a USB microscope with Debian 11. When I plug it in
> dmesg reports:
>
> usb 1-1.2: Manufacturer: GenesysLogic Technology Co., Ltd.
> uvcvideo: Found UVC 1.00 device USB2.0 UVC PC Camera (a16f:0304)
>
> but when I run vlc v412:///dev/video0 , I see a black window flash every 10
> seconds, and I loose control of all mouse and keyboard input. When I unplug
> the camera, I recover mouse and keyboard.

More testing: the USB microscope works correctly with guvcview 2.0.6 which is
distributed with Debian 11. I took all the default options.

Roger

[Maude Summerside]

Only time I saw something similar (loosing power of other devices on the
bus) were times that a device was driving more power than what's available.

Have you tried using a self powered hub to drive your microscope ? The
light inside may take some heavy power.
--
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development