在无数次尝试修复我的机器后，我终于决定是时候向互联网寻求帮助了。基本上，我的电脑无法检测或使用我的集成网络摄像头......
一点儿也不。
以下是 lsusb 命令的输出：
Bus 001 Device 002: ID 8087:8001 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 04f3:031d Elan Microelectronics Corp.
Bus 002 Device 003: ID 8087:0a2a Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
这是 lspci 命令的输出：
00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Broadwell-U Processor Thermal Subsystem (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 (rev e3)
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
00:1f.6 Signal processing controller: Intel Corporation Wildcat Point-LP Thermal Management Controller (rev 03)
06:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)
07:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader (rev 01)
07:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
08:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 845M] (rev a2)
计算机正在运行Ubuntu 19.04
电脑型号：
Core™ i7-5500U CPU @ 2.40GHz × 4
英特尔® 高清显卡 5500 (Broadwell GT2)/NV118
Gnome版本：3.32.1
64 位计算机
答案1
显然，我能够使用 dmesg 日志等调试大多数问题。似乎使用以下命令（以及在另一个终端窗口上不断刷新 dmesg）对我有很大帮助（我不能说一定它们在任何情况下都能发挥作用，但绝对值得一试）
sudo rmmod uvcvideo
sudo modprobe uvcvideo
注意：我并不完全确定sudo此处使用的重要性。它甚至可能没有必要 - 它可能只是冗长。