Is the Kinect camera broken?

[doctorstoo]

I am running libfreenect2 on Ubuntu 18.04 and trying to connect two Kinect v2 cameras in the same time. The first camera worked well, but the other one showed no vedio and the Protonect program stopped to work. Is there hardware or software problem with this camera? Click to see the screenshot.

ubuntu@ubuntu-desktop:~/libfreenect2/build/bin$ ./Protonect

Version: 0.2.0 Environment variables: LOGFILE= Usage: ./Protonect [-gpu=] [gl | cl | clkde | cuda | cudakde | cpu] [] [-noviewer] [-norgb | -nodepth] [-help] [-version] [-frames ] To pause and unpause: pkill -USR1 Protonect [Info] [Freenect2Impl] enumerating devices... [Info] [Freenect2Impl] 8 usb devices connected [Info] [Freenect2Impl] found valid Kinect v2 @2:5 with serial 023438143547 [Info] [Freenect2Impl] found 1 devices [Info] [Freenect2DeviceImpl] opening... [Info] [Freenect2DeviceImpl] transfer pool sizes rgb: 2016384 ir: 608*33792 [Info] [Freenect2DeviceImpl] opened [Info] [Freenect2DeviceImpl] starting... [Debug] [Freenect2DeviceImpl] status 0x090000: 1073750016 [Debug] [Freenect2DeviceImpl] status 0x090000: 1073750272 [Debug] [Freenect2DeviceImpl] status 0x090000: 1073750016 [Debug] [Freenect2DeviceImpl] status 0x090000: 1073750272 [Debug] [Freenect2DeviceImpl] status 0x090000: 1073750016 [Debug] [Freenect2DeviceImpl] status 0x090000: 1073750272 [Debug] [Freenect2DeviceImpl] status 0x090000: timeout [Debug] [Freenect2DeviceImpl] status 0x090000: 1073750016 [Info] [Freenect2DeviceImpl] submitting rgb transfers... [Info] [Freenect2DeviceImpl] submitting depth transfers... [Info] [Freenect2DeviceImpl] started device serial: 023438143547 device firmware: 4.0.3917.0

[doctorstoo]

I remenber after using UsbDK at the last time and the camera shot down. Unproper “Replace Driver” may be the root of mistake.