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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    TriggerHappy Daemon (THD) doesn't work on my Pi running Retropie ! Help

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    retropietriggerhappydaemonhelpbug
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    • mituM
      mitu Global Moderator @Djon
      last edited by

      @djon The autostart.sh file is in /opt/retropie/configs/all/autostart.sh, but try with /etc/rc.local first. You'll need to reboot to test it.

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      • D
        Djon
        last edited by

        @mitu
        if the line need to start at boot, i also have a python code running at boot, i added the pyton path at the end of /etc/profile
        Don't know if it can help here :)

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        • D
          Djon
          last edited by

          @mitu
          So i did : sudo nano /etc/rc.local
          And added at the end of the file
          "/usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --deviceglob /dev/input/event* &"
          Then sudo reboot

          But it still not working

          mituM 1 Reply Last reply Reply Quote 0
          • D
            Djon
            last edited by

            Maybe should i past it before "exit 0" line ?

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            • mituM
              mitu Global Moderator @Djon
              last edited by mitu

              @djon Does the process shows up when your run ps -ef from the terminal ?
              EDIT: Yes, of course you need to add it before the exit, otherwise it's not executed.

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              • D
                Djon
                last edited by Djon

                Ok so i add it before "exit 0" this time and run ps -ef @mitu
                And i think the line you're interested in is
                "nobody 364 1 0 03:26 ? 00:00:00 /usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --socket /run/thd.socket --user nobody --deviceglob /dev/input/event*"

                mituM 1 Reply Last reply Reply Quote 0
                • mituM
                  mitu Global Moderator @Djon
                  last edited by mitu

                  @djon Doesn't seem to be correct. Have you disabled the service ? The process shown there seems the one started from the built-in service script. Post your rc.local file contents, surrounded by code tags (```).

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                  • D
                    Djon
                    last edited by

                    No prob ! @mitu

                    
                    #
                    
                    # rc.local
                    
                    #
                    
                    # This script is executed at the end of each multiuser runlevel.
                    
                    # Make sure that the script will "exit 0" on success or any other
                    
                    # value on error.
                    
                    #
                    
                    # In order to enable or disable this script just change the execution
                    
                    # bits.
                    
                    #
                    
                    # By default this script does nothing.
                    
                    
                    
                    # Print the IP address
                    
                    _IP=$(hostname -I) || true
                    
                    if [ "$_IP" ]; then
                    
                      printf "My IP address is %s\n" "$_IP"
                    
                    fi
                    
                    
                    
                    /usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --devicelob /dev/input/event* &
                    
                    
                    
                    exit 0
                    mituM 1 Reply Last reply Reply Quote 0
                    • mituM
                      mitu Global Moderator @Djon
                      last edited by

                      @djon Just change it to

                      # Start THD as user pi
                      nohup /usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --user pi --deviceglob /dev/input/event* &
                      
                      exit 0
                      

                      and reboot. Disable the service with sudo systemctl disable triggerhappy first.

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                      • D
                        Djon
                        last edited by Djon

                        I'll do it in a sec, so i'll change all the file just with these lines ? @mitu

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                        • D
                          Djon
                          last edited by Djon

                          Okay so i made the mistake to erase all the file, to put just your line...
                          So i did it again, with just your line at the end, and i can say... that... it is workinggggggggggg !!!!!!! @mitu

                          I think that i will start again from stratch with a brand new retropie image, next time i'll just need to put :

                          # Start THD as user pi
                          nohup /usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --user pi --deviceglob /dev/input/event* &
                          
                          exit 0
                          

                          Or i'll need to take all the steps we made ?

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                          • D
                            Djon
                            last edited by Djon

                            Since you're here @mitu and that your the best guy ever, i need to change a bit the script to make the brightness increase by 25% each time, i was thinking :

                            sudo chmod 777 /sys/class/backlight/rpi_backlight/brightness && echo 25% > /sys/class/backlight/rpi_backlight/brightness
                            

                            ... hum no i just test it and they say "invalid argument"

                            FYI the brightness can go from 0 to 250

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                            • H
                              Headrush69
                              last edited by Headrush69

                              I ran into the same issue trying to get triggerhappy to process the VOLUME_UP and VOLUME_DOWN events from my Dell AC511 soundbar.

                              No matter whether I set the user to run the process as in /etc/defaults/triggerhappy, or /etc/init.d/triggerhappy, it would always run as user nobody.

                              The process would run, but because nobody doesn't have privileges, my commands to amixer would not run.

                              The solution I found was to edit /etc/systemd/system/multi-user.target.wants/triggerhappy.service and set the user in there to pi.

                              After doing that and restarting the daemon, the triggerhappy process ran under user pi and everything worked.

                              Edit: Future updates my overwrite changes to this file, I don't know.

                              S 1 Reply Last reply Reply Quote 1
                              • S
                                simple @Headrush69
                                last edited by

                                @headrush69 Thank you sssssssssssssooooooooooooooooooo much headrush!
                                I have spent the last 2 days digging for this!!
                                My volume knob, It WORKS!

                                I literally created an account here just to thank you!

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