You can use the raspbian preferences via the GUI to cause the pi user to be auto logged in at boot up and the GUI automatically run. However if you need to run with root privileges due to needing IO pin control (yes yes its not advised to run as root, but for many uses its fine where the security issues aren\u2019t a concern) then set the raspbian preferences to boot to the command line. Now open this file (the \u201csudo nano\u201d assumes you are editing it from the command line):<\/p>\n\n\n\n
sudo nano \/etc\/rc.local<\/code><\/pre>\n\n\n\nBefore the \u201cexit 0\u201d line in it add the following line:<\/p>\n\n\n\n
#Auto run the GUI as root\nsudo startx<\/code><\/pre>\n\n\n\nSave it by pressing Ctrl+X, \u201d Y\u201d, ENTER<\/p>\n\n\n\n
Re-boot your RPi and it should automatically run the GUI as the root user. <\/p>\n\n\n\n
\u201cNo session for pid 696\u201d<\/h5>\n\n\n\n
We get this message when using this method, the number will be random based on system. It may well be because of using sudo startx.<\/p>\n\n\n\n
You can use command \u201cps 696\u201d to see the process there is no session for, for us it was:<\/p>\n\n\n\n
PID TTY STAT TIME COMMAND
902 ? Sl 0:00 lxpolkit<\/p>\n\n\n\n
lxpolkit is a \u201cPolicy authentication agent\u201d. There\u2019s lots of google resources on no session for PID with lxpolkit but after a few hours of trying we didn\u2019t manage to resolve. Instead we started our application using a script with a delay before it runs so that it simply appears on top of the error message. Bodge, but it works for us\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"
You can use the raspbian preferences via the GUI to cause the pi user to be auto logged in at boot up and the GUI automatically run. However if you need to run with root privileges due to needing IO pin control (yes yes its not advised to run as root, but for many uses its fine where […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"class_list":["post-3732","post","type-post","status-publish","format-standard","hentry","category-gui"],"_links":{"self":[{"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/posts\/3732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/comments?post=3732"}],"version-history":[{"count":1,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/posts\/3732\/revisions"}],"predecessor-version":[{"id":3733,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/posts\/3732\/revisions\/3733"}],"wp:attachment":[{"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/media?parent=3732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/categories?post=3732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/raspberry-projects.com\/pi\/wp-json\/wp\/v2\/tags?post=3732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}