On 2022-09-14 11:31, Roger Price wrote:
> 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
>
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
