{"id":258,"date":"2016-10-26T15:00:47","date_gmt":"2016-10-26T15:00:47","guid":{"rendered":"http:\/\/chewett.co.uk\/blog\/?p=258"},"modified":"2016-10-26T15:01:20","modified_gmt":"2016-10-26T14:01:20","slug":"vchi-initialization-failed-raspberry-pi-fixed","status":"publish","type":"post","link":"https:\/\/chewett.co.uk\/blog\/258\/vchi-initialization-failed-raspberry-pi-fixed\/","title":{"rendered":"VCHI initialization failed Raspberry Pi Fixed"},"content":{"rendered":"
\"vcgencmd<\/a>
Example showing VCHI initialization failed error<\/figcaption><\/figure>\n

If when running vcgencmd on a raspberry pi you get\u00a0VCHI initialization failed<\/strong> then you need to add the video group to your user. The vcgencmd tool requires you have this group role so without it, it will give VCHI initialization failed.<\/p>\n

To add the user group to your user you can run:<\/p>\n

sudo usermod -aG video\u00a0<username><\/pre>\n
Where <username> is the user you want to run the vcgencmd command\u00a0with. This command adds the video group to the the user you specify.<\/p>\n
Once you have ran the command\u00a0any new logins will run the command successfully. Logging out and back into the pi will let you use the command.<\/p>\n
Why this problem occurs<\/h3>\n
This issue happens\u00a0when you try and use the vcgencmd command with a user that isn’t a member of the video group. This typically happens when you create a new user for the raspberry pi and don’t give it the same groups that the pi user has.<\/p>\n
The solution above fixes this by adding the correct video group to the created user.<\/p>\n","protected":false},"excerpt":{"rendered":"
If when running vcgencmd on a raspberry pi you get\u00a0VCHI initialization failed then you need to add the video group to your user. The vcgencmd tool requires you have this group role so without it, it will give VCHI initialization failed. To add the user group to your user you can run: sudo usermod -aG […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,98],"tags":[13,39,37,106,105],"class_list":["post-258","post","type-post","status-publish","format-standard","hentry","category-fixes","category-software","tag-fix","tag-linux","tag-raspberry-pi","tag-vcgencmd","tag-vchi-initialization-failed"],"wppr_data":{"cwp_meta_box_check":"No"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2toWX-4a","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":343,"url":"https:\/\/chewett.co.uk\/blog\/343\/raspberrypivcgencmd-python-library-access-raspberry-pi-vcgencmd-command\/","url_meta":{"origin":258,"position":0},"title":"RaspberryPiVcgencmd A python library to access Raspberry Pi vcgencmd command","author":"Chewett","date":"May 31, 2017","format":false,"excerpt":"To access some of the lower level aspects of the Raspberry Pi's config you can use the built in command vcgencmd. This is a useful on the command line but to easily access it in a program you need to parse the output. I am planning to use this command\u2026","rel":"","context":"In "Raspberry Pi Cluster"","block_context":{"text":"Raspberry Pi Cluster","link":"https:\/\/chewett.co.uk\/blog\/category\/raspberry-pi-cluster\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/05\/vcgencmd.png?fit=628%2C288&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/05\/vcgencmd.png?fit=628%2C288&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/05\/vcgencmd.png?fit=628%2C288&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":521,"url":"https:\/\/chewett.co.uk\/blog\/521\/add-new-user-account-raspbian-raspberry-pi\/","url_meta":{"origin":258,"position":1},"title":"Add a new user account in Raspbian Raspberry Pi","author":"Chewett","date":"August 5, 2017","format":false,"excerpt":"For my cluster project I will add a new user to each Raspberry Pi. 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Adding a new user to Raspbian\u2026","rel":"","context":"In "Raspberry Pi Cluster"","block_context":{"text":"Raspberry Pi Cluster","link":"https:\/\/chewett.co.uk\/blog\/category\/raspberry-pi-cluster\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/08\/add_user_to_raspbian_os.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/08\/add_user_to_raspbian_os.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/08\/add_user_to_raspbian_os.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2017\/08\/add_user_to_raspbian_os.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2780,"url":"https:\/\/chewett.co.uk\/blog\/2780\/raspberry-pi-cluster-node-18-raspberry-pi-temperature-monitoring\/","url_meta":{"origin":258,"position":2},"title":"Raspberry Pi Cluster Node \u2013 18 Raspberry Pi Temperature Monitoring","author":"Chewett","date":"February 20, 2021","format":false,"excerpt":"This post builds on\u00a0my previous posts in the Raspberry Pi Cluster series\u00a0by starting to log temperature with the RaspberryPiVcgencmd Python module. 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