Failed to open dev video0 no such file or directory Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2. i. raw --stream-count=1 And received this back "Failed to open /dev/video0: No such file or directory" I tried modifying startrtspserver. png --- Opening /dev/video0 Trying source module v4l2 /dev/video0 opened. Aug 28, 2018 · Hello, I am currently working on a project with Omega2+, and I need to take a video. Jan 1, 2020 · I have got a Raspberry Pi CSI-Camera (v1. 0 root hub Bus 001 Device 006: ID 8087:0aaa Intel Corp. This has to work with Motion as it has to take videos/pictures when movement is detected and I have to be able to access it Aug 5, 2024 · I have only just realised that the webcam is not working and it appears that the FW does not even recognise the existence of the hardware. This particular naming convention is for cameras on USB which use a “standard” (non-custom) driver. 0 camera is connected. 命令直接提示错误的，提示V4L2-ctl的帮助页面，说明命令有误。 b. 8w次，点赞7次，收藏22次。本文详细介绍了如何在虚拟机中设置并使用笔记本摄像头，包括接管摄像头、确认外设、安装和启动cheese软件进行摄像头检查的步骤。 Jun 1, 2015 · Failed to open video device /dev/video0: No such file or directory Apr 21, 2020 · Then when I put sudo mknod /dev/video0 c 81 0 We have the output for ls -l /dev/video0 is: crw-r--r-- 1 root root 81, 1 Apr 19 22:25 /dev/video0 Output getfacl /dev/video and ls -ltrh /dev/video* Output lsusb and v4l2-ctl --list-devices Output 'Cheese' by terminal. May 15, 2022 · v4l2 -ctl --list -devices Failed to open /dev /video0: No such file or directory Jun 6, 2017 · Motion -> v4l2_start: Failed to open video device /dev/video0: No such file or directory Mon Oct 28, 2019 3:54 am Hello, I have two Raspberry Pi Zero devices. You dev may be dynamic so no static nod is needed. sudo apt-get update 3. Looked like the kernel module was disabled, so I tried to start it up: $ sudo modprobe v4l2loopback modprobe: FATAL: Module v4l2loopback not found in directory /lib/modules/5. udev may recreate the 'video0' so your code can work with the device 0 again. Directing a v4l2sink (so an endpoint of the pipeline) in gstreamer will likely fail. lau Feb 26, 2019 · Hi @mpromonet thanks for responding and your suggestions. sudo modprobe bcm2835-v4l2 6. Since I did not found anything to take a video, I was thinking about taking a lot of images and make a video with it. For now it is only one video node - video0 I have followed the sensor software development documentation for device tree and driver modules. Jun 5, 2017 · When it's not working: ls /dev/video0 gives: cannot access '/dev/video0': No such file or directory v412-ctl --info gives Failed to open /dev/video0: No such file or directory hwinfo | grep video gives the following output: pastebin (third part) What I tried: Checked if my webcam is supported by Ubuntu. Upvoting indicates when questions and answers are useful. Jan 18, 2022 · I followed the instructions and the output of lsusb command: Bus 001 Device 004: ID 13d3:56eb IMC Networks USB2. How I have got to load all modules on my linux system, but when I try to use the test_ioctl utilility in order to change some values on my card, I get this error: Failed to open /dev/video0: No such file or directory Searching on the net, people use these command to create this device: mknod /dev/video0 c 81 0 But it isn t work. /dev/video0 not appeared. Mar 3, 2013 · I try to check things are alright and can no longer find /dev/video0 which is where it used to show up. After restarting the machine I now see: hutber@hutber:~$ v4l2-ctl --list-devices Failed to open /dev/video0: No such file or directory It says there is a Dummy Video Device, but I cannot see any devices when trying to use the dummy Mar 20, 2025 · After booting with this configuration, use fpga manager to configure fpga and update the device tree with dtbo to see if the kernel driver is loaded, or if not, use modprobe to probe it so that file descriptors such as /dev/videoX file descriptors such as /dev/videoX will be created. sudo apt-get upgrade 4. No input was specified, using the first. It works like a webcam, but captures from HDMI. Opening an input file: /dev/video15. Successfully parsed a group of options. v4l2 devices can be both input and output video devices. 173375915]: Cannot identify ‘/ dev / video0 ’: 2, No such file or directory 错误显示 运行命令： roslaunch turn_on_wheeltec_robot ar_label. iki@ebana-IdeaPad:~$ ls /dev/video* Oct 1, 2021 · Failed to open /dev/video0: No such file or directory root@jetson:~# dmesg | grep -i imx219 root@jetson:~# I’ve tried the following : – restarting / power cycling – re-seating the CSI cable in the connector The camera has an LED on it that powers on when it is connected. DRM support is a prerequisite for using this tool, as you can see. Any suggestion please? /$ v4l2-ctl --list-devices Cannot open device /dev/video0, exiting. v4l2-ctl --list-devices Cannot open device /dev/video0, exiting. May 16, 2022 · Failed to open /dev/video0: No such file or directory I have added some config in Device Driver like @NotTheDr01ds said and now my camera show up in WSL2 with command Jul 14, 2022 · /dev/video0 will not open, but the computer is aware a camera is connected. I installed Stretch Lite. 4. Thereafter, as you gain trust, you will find other sections of Discourse open to you. 0-81-generic Odd, the module was not even installed. 0 HD UVC WebCam Means that WSL2 has detected the webcam. What you are looking for is something like the v4l2-loopback device Jun 3, 2019 · I am trying “v4l2-ctl --list-devices” on TX2 in which one CSI and one USB 3. I connected one of them to the camera v1. You can however generate a virtual output device. video-codec: Device registered as /dev/video0 Then, the Unable to open DRM node: No such file or directory issue seems to indicate that there is no DRM driver running on your device (or that it failed to initialize). What I did : 1. --- Capturing frame Skipping frame Capturing 1 frames VIDIOC_QBUF: No Feb 17, 2016 · 3 If /dev/video0 is owned by root video (check with ls -l /dev/video0), add yourself to the video group with usermod -aG video your_username, log out, log in, try again. It works perfect using the vmlinuz-5. But I faced a problem. After I unplugged the USB camera and left only the CSI camera plugged, there was no video device showed up. It is now read-only. After upda Delete the static video0 we created and reboot. 0 root hub NebulaPrestigious532 Cannot access /dev/video*, no such file or directory Solved Jul 2, 2019 · I am trying “v4l2-ctl --list-devices” on TX2 in which one CSI and one USB 3. The newly created question will be automatically linked to this question. For transcoding I'm setting up ffmpeg and video4linux2. /dev/video15: No such device Sep 21, 2020 · Is there a terminal command that lists all the webcams connected to my computer including the native one? Maybe using the ffmpeg package? Jun 30, 2015 · Directly setting permissions on /dev/anything can work short term, and fail as soon as you replug (for a USB device) or reboot (for PCI cards etc. The microphone and its privacy slider are working. The command is returning Failed to open /dev/video0: No such file or directory what might be the problem? Motion -> v4l2_start: Failed to open video device /dev/video0: No such file or directory Mon Oct 28, 2019 3:54 am Hello, Nov 27, 2022 · $ docker compose up Error response from daemon: error gathering device information while adding custom device "/dev/ttyUSB0": no such file or directory Jun 14, 2014 · It looks like your camera isn't in /dev/video0 please post what "lsusb" is returning to you and check if /dev/video0 exists. Mar 18, 2021 · --- Opening /dev/video0 stat: No such file or directory I see video10video16 under /dev. 3 and the second one is connected to the camera module v2. everything worked and i used the built in timelaps mode on a few prints. The command is returning Failed to open /dev/video0: No such file or directory what might be the problem? Mar 3, 2018 · --- Opening /dev/video0 stat: No such file or directory Also, running ls /dev/video* yields: ls: cannot access '/dev/video*': No such file or directory A similar effect is also observed using different methods for capturing the camera feed, e. I want to capture video from it on Nvidia Jetson Nano in Ubuntu by using gstreamer. I then pulled it from the packages and gave it . Dec 30, 2023 · [1:ml1] [ALR] [VID] [Mar 11 20:45:01] v4l2_device_open: Failed to open video device /dev/video0: No such file or directory [1:ml1] [ERR] [VID] [Mar 11 20:45:01] vid_start: V4L2 device failed to open [1:ml1] [WRN] [ALL] [Mar 11 20:45:01] motion_init: Could not fetch initial image from camera Intel® RealSense™ SDK. Question So why does this happen and how can I fix it? Any help is greatly appreciated! Jan 24, 2023 · ` Jan 24 09:54:20 raspberrypi motion: [1:ml1] [ALR] [VID] v4l2_device_open: Failed to open video device /dev/video0: No such file or directory Jan 24 09:54:20 raspberrypi motion: [1:ml1] [ERR] [VID] vid_start: V4L2 device f ailed to open Jan 24 09:54:30 raspberrypi motion: [1:ml1] [WRN] [ALL] mlp_retry: Retrying until successful connection with Sep 29, 2017 · Hi, I'm trying to set up a tvheadend server. Contribute to IntelRealSense/librealsense development by creating an account on GitHub. sudo rpi-update 5. Aug 7, 2023 · The top answer says to do ls -l /dev/video*, this is my output: erik@laptop:~$ ls -l /dev/video* ls: cannot access '/dev/video*': No such file or directory I'm supposed to change permissions on that directory, but it doesn't exist. Both of them give me exactly the same results. Apr 12, 2016 · "Failed to open video device /dev/video0 no such file or directory" with normal working usb camera in motion Ask Question Asked 9 years, 7 months ago Modified 3 years, 8 months ago Jun 3, 2019 · I am trying “v4l2-ctl --list-devices” on TX2 in which one CSI and one USB 3. Also, lsusb command does not list the device. Aug 23, 2023 · 650 文章目录 [ERR OR] [16 2 1578431. $ ls /dev/video* ls: cannot access '/dev/video*': No such file or directory $ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3. What's reputation and how do I get it? Instead, you can save this post to reference later. Sep 28, 2013 · Have you got any other video device (maybe just video, or video1: ls -la /dev/video*)? If you haven't any other device, it most likely means your webcam isn't supported by your kernel. Jun 6, 2017 · Motion -> v4l2_start: Failed to open video device /dev/video0: No such file or directory Mon Oct 28, 2019 3:54 am Hello, I have two Raspberry Pi Zero devices. 0 n… Aug 7, 2020 · Pi Camera V2: ERROR opening V4L interface: No such file or directory Ask Question Asked 5 years, 3 months ago Modified 5 years, 3 months ago DEFAULT ERROR opening V4L interface: No such file or directory Init v4L2 failed !! exit fatal i: init_VideoIn failed The command used for run is: mjpg_streamer -i input_uvc. Ubuntu won't use the camera, but it works on windows Jun 8, 2022 · 08/06 11:43:01,090 ERROR [140013064918784] (librealsense-exception. Adjusting resolution from 384x288 to 640x480. e. cpp:68) Error during polling error handler: Cannot open '/dev/video0 Last Error: No such file or directory Aug 10, 2018 · エラー カメラの情報を確認しようと以下をコマンドしたところ v4l2-ctl -d /dev/video1 --list-formats-ext Failed to open /dev/video0: No such file or directory video0がない。 I have got to load all modules on my linux > system, but when I try to use the ?test_ioctl? utilility in order to > change some values on my card, I get this error: > > Failed to open /dev/video0: No such file or directory > > > > Searching on the net, people use these command to create this device: > > mknod /dev/video0 c 81 0 > > > > But it Aug 23, 2021 · VIM3 eaglet August 23, 2021, 4:47am 1 按教程的用法 v4l2_test -c 1 -p 0 -F 0 -f 0 -D 0 -R 1 -r 2 -d 2 -N 1000 -n 800 -w 0 -e 1 -I 0 -b /dev/fb0 -v /dev/video0 或者opencv打开均能正常使用 但是自已写v4l2方式打开的的代码 int ret = 0; Oct 15, 2019 · It is announced at boot, with a line like: cedrus 1c0e000. $ ls /dev/video0 ls: cannot access ‘/dev/video0’: No such file or directory $ v4l2-ctl --list-devices Failed to open /dev/video0: No such file or directory $ gst-launch-1. using motion. I'll leave this ticket open for a few days or so in case, Calin, you want to have a look at it; I'll close it afterwards in case you don't do it before. Aug 4, 2020 · I am using CSI-Camera RPi camera V2 with Jetson Nano but the camera is not detected by jetson nano however camera is working fine with raspberry pi. conf and rebooting. Some where I found following command vcgencmd get_camera which gives: supported=1 detected=0 Feb 22, 2025 · Parsing a group of options: input url /dev/video15. The only weird thing Jun 6, 2023 · （1）抓不到数据，且没有报错 第一种情况就是使用V4L2抓数据，串口没有报错，但是也没抓到数据，抓图的命令，会出现select timiout的报错反馈。 ①命令直接提示错误 说一下常开的几种： a. install OS from Raspbian 9/7 2017 version. 1. I f I am using an HDMI to USB capture device that linux sets up as /dev/video0. If you have a related question, please click the "Ask a related question" button in the top right corner. The Support and Help section will be the first to be open to you for posting. so What could be the issue? Is that I have a PiCamera that runs on a Raspberry Pi Model B Rev 2 ? Is PiCamera compatibile with this model of the Raspberry Pi? Apr 10, 2019 · 文章浏览阅读1. 3), I plug it in, but the Jetson Nano does not seem to pick up on it: $ v4l2-ctl --list-formats-ext Failed to open /dev/video0: No such file or directory and $ gst-launch-1. And when the camera is activated, it says: 'No device found' Mar 18, 2021 · I have HBVCAM-HPLCC-8M camera with IMX219 sensor and Jetson Nano 2GB. The command is returning Failed to open /dev/video0: No such file or directory what might be the problem? Sep 25, 2018 · When I do “v4l2-ctl --list-devices” I get a "failed to open /dev/video0: no such file or directory? This folder does indeed not exist in my folder structure. Jun 19, 2022 · Hello, I am trying to get the camera working, I don’t understand why the following error raises: Failed to open /dev/video0: No such file or directory I am using IMX129-200 camera on 2GB Jetson Nano. After installing the drivers, /dev/video0 shows up after Oct 3, 2019 · This repository was archived by the owner on Aug 25, 2025. Mar 16, 2018 · 16/03 17:38:48,457 ERROR [139736819689216] (error-handling. By running these commands I want to find USB Cameras plugged in to Jetson Nano, But it doesn’t show any usb camera. When I try to open the Video4Linux Control Panel, I get the following error: Unable to open file /dev/video0 Nov 14, 2021 · $ v4l2-ctl --list-devices Cannot open device /dev/video0, exiting. The server worked and i had a video stream comming from my webcam (logitech c270). Hi Simos, Thanks for your reply! Your answer makes sense, here is what I did: Apr 19, 2018 · ffmpeg [video4linux2,v4l2 @ 0x8cb5d0] Cannot open video device /dev/video0: No such file or directory any idea how to fix it? thanks Jun 21, 2022 · Hello, I am trying to get the camera working, I don’t understand why the following error raises: Failed to open /dev/video0: No such file or directory I am using IMX129-200 camera on 2GB Jetson Nano. Apr 10, 2019 · Update: I was able to fix it by forcing the device id to be /dev/video0 in thread-1. Does this mean that my camera was broken? nvidia@XavierNx:~$ v4l2-ctl --stream-mmap --stream-count=100 --set-ctrl bypass_mode=0 -d /dev/video0 Failed to open /dev/video0: No such file or directory nvidia@XavierNx Aug 29, 2023 · Hi, I was trying to connect my webcam to the PC, but noticed that the device is not detected properly. Graphical apps such as OBS and GNOME Cheese says no webcam is Nov 2, 2013 · I was expecting the Raspberry Pi Camera Board to show up as /dev/video0 but when I run Motion I get an error: Failed to open video device /dev/video0: No such file or directory The camera works fine with raspistill -d. I tried running v4l2-ctl --device /dev/video0 --stream-mmap --stream-to=frame. Nov 24, 2018 · I have a 64-bit Linux Mint 10 but it does not recognise my Lenovo Y650 camera. 2. g. I checked dmesg I don't see any trace of the USB device being plugged in. Jun 3, 2019 · I am trying “v4l2-ctl --list-devices” on TX2 in which one CSI and one USB 3. Any other Dec 3, 2019 · I have a HikVision MV-CA050-20UC USB-Camera(USB 3. ) If you still get 'Operation not permitted', ensure you have set gpu_mem=128 in /boot/config. Applying option f (force format) with argument v4l2. Aug 5, 2018 · I have an old Hauppauge PVR250 card that I'd like to use to capture some old content. why jetson can’t recognize ov5647 series of cameras? Jun 1, 2019 · After getting everything working 100% again, I started tinkering around with the core Pi software and somehow managed to break it again. Does this mean that my camera was broken? nvidia@XavierNx:~$ v4l2-ctl --stream-mmap --stream-count=100 --set-ctrl bypass_mode=0 -d /dev/video0 Failed to open /dev/video0: No such file or directory nvidia@XavierNx Jul 9, 2017 · stat: No such file or directory pi@rodrigo:~/rodrigo $ /usr/bin/fswebcam -S 1 --no-banner deleteme. 出现no such devices的报错，如下： Failed to open Mar 7, 2025 · My Lenovo laptop was fine till last week. h:52) map_device_descriptor Cannot open '/dev/video0 Last Error: No such device 08/06 11:43:01,090 ERROR [140013064918784] (sensor. sh to the -r this is the contents of the file: #!/bin/bash sudo modprobe -v bcm2835-v4l2 v4l2rtspserver -r -F15 -H 720 -W1280 Aug 19, 2021 · I think I made a mistake. Then it can not connect a camera in my Teams meetings. After rebooting a few times the camera is not recognised anymore, it is not even listed when I do lsusb and I get this message /dev/video0: No such file or directory . Apr 26, 2020 · I would like the /dev/video0 to be available to use as a webcam and believe the issue lies somewhere in the v412. However, when I try to open my camera to capture video I get VIDEOIO ERROR: V4L: can't find camera device. cpp:572) acquire_power failed: map_device_descriptor Cannot open ' /dev/video0 Last Error: No such device Jun 19, 2023 · I am trying to integrate ov5693 camera sensor on jetson orin but the video node is not being detected. command: v4l2-ctl -d /dev/video0 --all message: … Oct 28, 2021 · when i use $v4l2-ctl --list-devices i show ‘Failed to open /dev/video0: No such file or directory’ message. After expanding my disk size in raspi-config, I know that I: Mar 8, 2021 · I already tried lxc config device add rosfoxy video0 unix-char path=/dev/video0 with video0 , video1 and video2 and still getting the same error. 0. Feb 5, 2019 · I got everything setup yesterday on my pi 3B running raspbian using this guide. Jun 20, 2022 · Hello, I am trying to get the camera working, I don’t understand why the following error raises: Failed to open /dev/video0: No such file or directory I am using IMX129-200 camera on 2GB Jetson Nano. But I have a problem when I try to use fswebcam. 现在在调试一个虚拟的csi摄像头，接入一个csi信号源作为摄像头输入。 1，在摄像头hal层驱动中的对sensor的相关i2c操作已经去掉了（包括camera parse 中对摄像头的初始化 rk3288打开摄像头log提示Open /dev/video0 failed! ,Firefly开源社区 Jun 20, 2022 · Hello, I am trying to get the camera working, I don’t understand why the following error raises: Failed to open /dev/video0: No such file or directory I am using IMX129-200 camera on 2GB Jetson Nano. (rm ~/. [video4linux2,v4l2 @ 0x5232d0] fd:3 capabilities:84201000 [video4linux2,v4l2 @ 0x5232d0] Not a video capture device. I installed v4l-utils and ivtv-utils (which seems to supply the needed firmware) but the kernel seems unable to initialize the card: Dec 20, 2018 · Failed to open /dev/video0: No such file or directory I should also notice that if I restart the computer I get nothing from lsmod | grep uvc until I run sudo modprobe uvcvideo again. I do see the LED illuminated so not sure what is going on. the video0 does not detect, please advice on this. (You'll likely need to be root or prefix with sudo to add yourself to the group. 0). After that Aug 24, 2022 · "ls -ll /dev/video*" ls: cannot access '/dev/video*': No such file or directory "dmesg or dmesg | more" dmesg: read kernel buffer failed: Operation not permitted Outside the container I can see /dev/video0 in the root dir Also using dmesg -T I can see the usb device getting plugged in without any errors. Jan 15, 2022 · I have a Jetson Nano and a usb 3 camera connected to it, was working fine, been accesing the camera through Gstreamer. ls /dev/vi* ls: cannot access /dev/video0: No such file or directory I already read this Nov 15, 2021 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. in file /etc/default/grub, I edited this line This thread has been locked. I then went to set up the pi with the printer so i could finaly use it. looking at the wiki page it says to identify your webcam with lsusb but I assume that is only for usb webcams rather than inbuilt ones. The command is returning Failed to open /dev/video0: No such file or directory what might be the problem? Apr 25, 2020 · 我一直试图使用以下命令将我的DSLR设置为一个网络摄像头： gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -threads 0 -f v4l2 /dev/video0，但这会导致以下错误： Aug 19, 2021 · I think I made a mistake. Your camera is a video input (capture) device. A USB device can self-describe, and then the driver which works with such a device can take ownership (that driver for USB is USB Video Class Apr 2, 2024 · Failed to open /dev/video0: No such file or directory vte-developer@vtedeveloper-desktop:~$ v4l2-ctl --list-devices Failed to open /dev/video0: No such file or directory vte-developer@vtedeveloper-desktop:~$ Further, dmesg also dose not show the driver getting loaded: vte-developer@vtedeveloper-desktop:~$ dmesg | grep ov5693 Mar 22, 2016 · cannot access /dev/video*: No such file or directory Asked 9 years, 7 months ago Modified 9 years, 7 months ago Viewed 13k times May 13, 2022 · I’ve used v4l-utils to query my container’s video devices v4l2-ctl --list-devices Failed to open /dev/video0: No such file or directory ls /dev/video0 ls: cannot access '/dev/video0': No such file or directory I tried to search for solutions for this issue almost forum but it seems did not help much. txt. Jan 29, 2013 · Failed to open video device /dev/video0: No such file or directory Could not fetch initial image from camera Motion continues using width and height from config file(s) Oct 8, 2023 · 本文主要介绍了在Ubuntu虚拟机中遇到摄像头无法打开video0的问题及解决方案。首先检查虚拟机的摄像头连接，确保硬件连接无误。然后，针对红色报错进行处理，通过终端命令解决问题。此外，还涉及虚拟机硬件设置，需要在关闭虚拟机后调整相关配置。内容还包括如何查看设备号并修改launch文件 May 2, 2019 · I am trying to use Python OpenCV on a Windows Ubuntu terminal for a research project. My wsl has connected with webcam USB but not working Feb 1, 2014 · pi@raspberrypi:~$ zbarcam /dev/video0 --nodisplay ERROR: zbar processor in _zbar_video_open (): system error: opening video device '/dev/video0': No such file or directory (2) pi@raspberrypi:~$ ls -la /dev/video0 ls: cannot access /dev/video0: No such file or directory pi@raspberrypi:~$ sudo rpi-update *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom *** Performing self Feb 14, 2020 · and it gives me the error: Failed to open /dev/video0: No such file or directory My raspberry pi camera isn't genuine, but it worked fine with my raspberry pis. On my Xavier NX, there was also a USB camera. The accepted answer says to add nomodeset in grub, I tried that. After that Apr 18, 2025 · It stops when rebooting (although it did not give the Undervoltage error) and in this case motioneye says: v4l2_device_open: Failed to open video device /dev/video0: No such file or directory. octoprint/logs/*) Sep 2, 2021 · $ v4l2-ctl --list-devices Cannot open device /dev/video0, exiting. When i try the run CSI-Camera (on Github) i get no cameras found error. 0 nvarguscamerasrc ! ‘video/x-raw(memory:NVMM),width=3820, height=2464 Jun 3, 2019 · I am trying “v4l2-ctl --list-devices” on TX2 in which one CSI and one USB 3. Common errors Unable to open V4L2 device '/dev/video0' Failed to open /dev/video0: No such file or directory Unknown V4L2 pixel format equivalent for yuvj422p See this answer for solutions. Aug 21, 2017 · Failed to open video device /dev/video0: Mon Aug 21, 2017 11:08 am Jan 16, 2024 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. The command is returning Failed to open /dev/video0: No such file or directory what might be the problem? The title of your questions suggests you would like to write to a virtual video device. The only solution I have so far is to reinstall the Jetson Nano image on the SD card which is not very Jan 18, 2022 · The file “ /dev/video0 ” would be generated by the driver itself (the file is not a real file, but is instead a driver pretending to be a file). But: v4l2-ctl --list-devices Cannot open device /dev/video0, exiting Nov 30, 2019 · I have installed v4l2 ubuntu package on Jetson Nano. ) If you find this fix is only temporary, then you may need to look at udev rules, or whatever your system uses, to enforce the correct permissions. 0-32-generic kernel. 173375915]: Cannot identify '/ dev / video0 ': 2, No such file or directory 错误显示 解决 办法原因 解决 [ERR OR] [16 2 1578431. octoprint and the webcam stream started up on startup of the pi. so -o output_http. For the second Problem clear your logs folder. aoof utel yiz gkqac ywieqjy gwu zykl rvdoqy gvwzgz ysrc yee mjtp bnywh kfof mpj