我已经安装了 Ubuntu 18.04.3 LTS 的 LENOVO 80VQ/Lenovo ideapad 710S-13IKB 近 2 年了。我不记得集成的 USB Easycamera 曾经工作过，最近我开始感到困扰，因为我还没有找到修复它的方法。以下是我到目前为止发现的：
$ lsusb
Bus 001 Device 003: ID 13d3:5673 IMC Networks
$ lsusb -t
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
|__ Port 5: Dev 3, If 0, Class=Video, Driver=, 480M
|__ Port 5: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M
当我尝试时，dmesg 会输出一些输出modprobe uvcvideo
[ 1576.626874] media: Linux media interface: v0.10
[ 1576.632827] Linux video capture interface: v2.00
[ 1576.757104] uvcvideo: Found UVC 1.00 device EasyCamera (13d3:5673)
[ 1576.758801] uvcvideo: Failed to initialize entity for entity 6
[ 1576.758804] uvcvideo: Failed to register entites (-22).
[ 1576.758822] ------------[ cut here ]------------
[ 1576.758825] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.0/media0'
[ 1576.758853] WARNING: CPU: 2 PID: 3977 at /build/linux-vxxS7y/linux-4.15.0/fs/sysfs/dir.c:31 sysfs_warn_dup+0x56/0x70
[ 1576.758854] Modules linked in: uvcvideo(+) videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media ccm ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfr m_user xfrm_algo iptable_nat nf_nat_ipv4 xt_addrtype nf_nat br_netfilter bridge stp llc aufs overlay nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_iprange xt_co nntrack nf_conntrack libcrc32c iptable_filter bnep arc4 nls_iso8859_1 snd_hda_codec_hdmi wmi_bmof input_polldev intel_wmi_thunderbolt snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_dsp snd_soc _sst_ipc snd_hda_codec_realtek snd_hda_codec_generic snd_soc_acpi snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel intel_rapl snd_hda_codec x86_pkg_temp_thermal intel_powerclamp snd_hd a_core
...
[ 1576.759130] Call Trace:
...
[ 1576.759490] ---[ end trace 8e6b3e85b1b873ca ]---
[ 1576.759494] kobject_add_internal failed for media0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 1576.759503] media: media_devnode_register: cdev_device_add failed
[ 1576.759797] usbcore: registered new interface driver uvcvideo
[ 1576.759799] USB Video Class driver (1.1.1)
关于重复文件名的警告sysfs似乎很有意义，因为它位于相关的 Easycamera 目录中。为什么 ubscore 报告 uvcvideo 已注册，尽管似乎存在错误？
我可以删除 media0 目录并尝试重新加载模块吗？这会导致严重问题吗？
kernel.org 上的此电子邮件交流尽管我不确定，但似乎也相关。
还有其他提示吗？当任何应用程序尝试使用相机时，相机上的灯会短暂闪烁。这与 dmesg 错误一起让我希望这不是硬件故障。