安装 Cheese 后，可以通过左键单击图标来捕获图像。有没有办法通过按键来启动图像捕获？
我相信这个问题与 Ubuntu 的任何特定版本无关。对于那些严格遵守仅使用受支持版本的要求的人来说，这个问题是在使用 Ubuntu 版本 22.04 时出现的。关于 cheese 显示 41.1
在无数次尝试修复我的机器之后，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......
一点也不。
这是 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
而且，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)
计算机运行的是Ubuntu 19.04
电脑型号：
Core™ i7-5500U CPU @ 2.40GHz × 4
英特尔® 核芯显卡 5500 (Broadwell GT2) / NV118
侏儒版本：3.32.1
64位机
我在亚马逊上买了一台 Maozua 5mp USB 显微镜（在查看了它在 Linux 上工作的评论之后）。可悲的是，当我在 Lubuntu 16.04 上连接它时，它在 guvcview 或奶酪中不起作用。
我做了一些调查。我在下面显示相关部分：
ls /dev | grep video
video0
video1
显微镜在 video1 上，罗技网络摄像头在 video0 上。未连接显微镜时网络摄像头工作，但连接显微镜时 guvcview 和 cheese 无法从中检索视频：
lsusb
Bus 003 Device 009: ID 0c45:6366 Microdia
更详细的信息：
lsusb -v
Bus 003 Device 008: ID 0c45:6366 Microdia
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x0c45 Microdia
idProduct 0x6366
bcdDevice 1.00
iManufacturer 2
iProduct 1
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 662
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 5
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 108
dwClockFrequency 15.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 5
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
VideoControl Interface Descriptor:
bLength 28
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 3
guidExtensionCode {7033f028-1163-2e4a-ba2c-6890eb334016}
bNumControl 24
bNrPins 1
baSourceID( 0) 2
bControlSize 3
bmControls( 0) 0xff
bmControls( 1) 0xff
bmControls( 2) 0xff
iExtension 0
VideoControl Interface Descriptor:
bLength 29
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {b42153bd-35d6-45ca-b203-4e0149b301bc}
bNumControl 32
bNrPins 1
baSourceID( 0) 3
bControlSize 4
bmControls( 0) 0x03
bmControls( 1) 0x80
bmControls( 2) 0x3f
bmControls( 3) 0x9f
iExtension 0
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x0000000e
Auto-Exposure Mode
Auto-Exposure Priority
Exposure Time (Absolute)
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 2
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000177f
Brightness
Contrast
Hue
Saturation
Sharpness
Gamma
White Balance Temperature
Backlight Compensation
Gain
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 6
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 15
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 2
wTotalLength 411
bEndPointAddress 129
bmInfo 0
bTerminalLink 5
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 1
bControlSize 1
bmaControls( 0) 11
bmaControls( 1) 11
VideoStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 1
bNumFrameDescriptors 5
bFlags 0
Fixed-size samples: No
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 1 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 2592
wHeight 1944
dwMinBitRate 1209323520
dwMaxBitRate 1209323520
dwMaxVideoFrameBufferSize 10078285
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 2320
wHeight 1744
dwMinBitRate 971059200
dwMaxBitRate 971059200
dwMaxVideoFrameBufferSize 8092749
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 2048
wHeight 1536
dwMinBitRate 754974720
dwMaxBitRate 754974720
dwMaxVideoFrameBufferSize 6292045
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 1920
wHeight 1080
dwMinBitRate 497664000
dwMaxBitRate 497664000
dwMaxVideoFrameBufferSize 4147789
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 1024
dwMinBitRate 314572800
dwMaxBitRate 314572800
dwMaxVideoFrameBufferSize 2622029
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 5
wWidth( 0) 2592
wHeight( 0) 1944
wWidth( 1) 2320
wHeight( 1) 1744
wWidth( 2) 2048
wHeight( 2) 1536
wWidth( 3) 1920
wHeight( 3) 1080
wWidth( 4) 1280
wHeight( 4) 1024
bNumCompressionPatterns 5
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 2
bNumFrameDescriptors 5
guidFormat {59555932-0000-1000-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 2592
wHeight 1944
dwMinBitRate 161243136
dwMaxBitRate 161243136
dwMaxVideoFrameBufferSize 10077696
dwDefaultFrameInterval 5000000
bFrameIntervalType 1
dwFrameInterval( 0) 5000000
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 2320
wHeight 1774
dwMinBitRate 131701760
dwMaxBitRate 131701760
dwMaxVideoFrameBufferSize 8231360
dwDefaultFrameInterval 5000000
bFrameIntervalType 1
dwFrameInterval( 0) 5000000
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 2048
wHeight 1536
dwMinBitRate 150994944
dwMaxBitRate 150994944
dwMaxVideoFrameBufferSize 6291456
dwDefaultFrameInterval 3333333
bFrameIntervalType 1
dwFrameInterval( 0) 3333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 1920
wHeight 1080
dwMinBitRate 99532800
dwMaxBitRate 99532800
dwMaxVideoFrameBufferSize 4147200
dwDefaultFrameInterval 3333333
bFrameIntervalType 1
dwFrameInterval( 0) 3333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 1024
dwMinBitRate 104857600
dwMaxBitRate 104857600
dwMaxVideoFrameBufferSize 2621440
dwDefaultFrameInterval 2000000
bFrameIntervalType 1
dwFrameInterval( 0) 2000000
VideoStreaming Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 5
wWidth( 0) 2592
wHeight( 0) 1944
wWidth( 1) 2320
wHeight( 1) 1744
wWidth( 2) 2048
wHeight( 2) 1536
wWidth( 3) 1920
wHeight( 3) 1080
wWidth( 4) 1280
wHeight( 4) 1024
bNumCompressionPatterns 5
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0b20 2x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1320 3x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
我查看了 dmesg 的输出，发现了以下不祥的行：
[ 2364.670728] usb 3-2: new high-speed USB device number 8 using xhci_hcd
[ 2364.829594] usb 3-2: New USB device found, idVendor=0c45, idProduct=6366
[ 2364.829598] usb 3-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 2364.829601] usb 3-2: Product: Digital microscope
[ 2364.829604] usb 3-2: Manufacturer: Sonix Technology Co., Ltd.
[ 2364.829606] usb 3-2: SerialNumber: SN0001
[ 2364.831835] uvcvideo: Found UVC 1.00 device Digital microscope (0c45:6366)
[ 2364.839225] uvcvideo 3-2:1.0: Entity type for entity Extension 4 was not initialized!
[ 2364.839229] uvcvideo 3-2:1.0: Entity type for entity Extension 3 was not initialized!
[ 2364.839232] uvcvideo 3-2:1.0: Entity type for entity Processing 2 was not initialized!
[ 2364.839235] uvcvideo 3-2:1.0: Entity type for entity Camera 1 was not initialized!
[ 2364.839369] input: Digital microscope: Digital mic as /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/input/input20
[ 2637.035796] usb 3-2: USB disconnect, device number 8
[ 2646.208190] usb 3-2: new high-speed USB device number 9 using xhci_hcd
[ 2646.367005] usb 3-2: New USB device found, idVendor=0c45, idProduct=6366
[ 2646.367009] usb 3-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 2646.367012] usb 3-2: Product: Digital microscope
[ 2646.367015] usb 3-2: Manufacturer: Sonix Technology Co., Ltd.
[ 2646.367017] usb 3-2: SerialNumber: SN0001
[ 2646.369205] uvcvideo: Found UVC 1.00 device Digital microscope (0c45:6366)
[ 2646.376527] uvcvideo 3-2:1.0: Entity type for entity Extension 4 was not initialized!
[ 2646.376531] uvcvideo 3-2:1.0: Entity type for entity Extension 3 was not initialized!
[ 2646.376534] uvcvideo 3-2:1.0: Entity type for entity Processing 2 was not initialized!
[ 2646.376536] uvcvideo 3-2:1.0: Entity type for entity Camera 1 was not initialized!
[ 2646.376672] input: Digital microscope: Digital mic as /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/input/input21
我断开了罗技网络摄像头，以避免交互，并从控制台运行奶酪（使用 sudo 来避免权限问题）。我看到了以下输出：
paul@clio:~$ sudo cheese
[sudo] password for paul:
(cheese:3520): IBUS-WARNING **: The owner of /home/paul/.config/ibus/bus is not root!
libv4l2: error turning on stream: Protocol error
(cheese:3520): cheese-WARNING **: Could not read from resource.: gstv4l2bufferpool.c(1054): gst_v4l2_buffer_pool_poll (): /GstCameraBin:camerabin/GstWrapperCameraBinSrc:camera_source/GstBin:bin18/GstV4l2Src:v4l2src1:
poll error 1: Protocol error (71)
我用谷歌搜索了“microdia”和“0c45:6366”，发现很多人都在为这台显微镜而苦恼。一些人认为他们得到了它的工作，但解决方案分布在意识流的长线程中，我还没有拼凑出任何有效的东西。我注意到大多数线程都是 2008-2009 年的。这让我想知道在那段时间之后是否有工作驱动程序可用 - 但我找不到它！
任何帮助都感激不尽。
以痛苦的 fps 记录奶酪。视频录制真的很慢，奶酪几乎无法使用。如何提高奶酪的 fps。
我有内置 1.3 MP 摄像头 2.47 GHz i3 处理器和 2 GB RAM 的 HCL 笔记本电脑。运行特立独行的 32 位。
我从具有良好视频 (fps) 的软件中心安装了 camorama，但由于某些错误，我似乎无法使用它。所以我怀疑奶酪本身有什么需要调整的。