我有一个 USB 摄像头，它曾经在我的 Ubuntu（当前版本 18.04.4 LTS，Linux E480 4.15.0-88-generic #88-Ubuntu SMP）上工作得很好，即插即用。现在，几个月来它没有检测到。
插入相机后，dmesg的尾部给出
[ 5862.596999] usb 1-3: new high-speed USB device number 15 using xhci_hcd
[ 5862.798746] usb 1-3: config 1 interface 1 altsetting 0 endpoint 0x82 has wMaxPacketSize 0, skipping
[ 5862.799144] usb 1-3: New USB device found, idVendor=1742, idProduct=0307
[ 5862.799149] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 5862.799154] usb 1-3: Product: NCM03-V-02
[ 5862.799157] usb 1-3: Manufacturer: Nippon Chemi-Con Corporation
[ 5862.800479] uvcvideo: Found UVC 1.00 …