v4l2 devices not working

Did you read the guide?

Yes
What is the base version number of MotionPlus being used?

0.1.x
What was the install method?

Built from source code
What is base architecture?

x86/x64
What is the distro being used?

Ubuntu
Disto version number

22.04
Camera/Sound type(s) being used?

v4l2 camera
Describe the issue/problem and steps to reproduce

I wanted to start using MotionPlus with a very basic configuration based on the conf file created on installation to drive my webcam on my laptop. The camera works without problems in motion or vlc but it simply does not turn on or does anything in MotionPlus. My config file is attached and so is the log. Thanks! motionplus.conf.zip
Relevant MotionPlus log output (at log_level 8)

motionplus
[NTC][ALL][00:motionplus] conf_process: Processing config file /home/andy/.motionplus/motionplus.conf
[NTC][ALL][00:motionplus] log_init: Logging to syslog
[NTC][ALL][00:motionplus] log_init: MotionPlus 0.1.1-git-20230916-20a34d8 started
[NTC][ALL][00:motionplus] log_init: Using log type (ALL) log level (DBG)
[NTC][ALL][00:motionplus] mytranslate_init: Language: English
[INF][ALL][00:motionplus] conf_parms_log: Logging configuration parameters from all files
[INF][ALL][00:motionplus] Config file: /home/andy/.motionplus/motionplus.conf
[INF][ALL][00:motionplus] daemon                    off
[INF][ALL][00:motionplus] setup_mode                off
[INF][ALL][00:motionplus] pid_file                  
[INF][ALL][00:motionplus] log_file                  
[INF][ALL][00:motionplus] log_level                 8
[INF][ALL][00:motionplus] log_type                  ALL
[INF][ALL][00:motionplus] native_language           on
[INF][ALL][00:motionplus] device_name               webcam
[INF][ALL][00:motionplus] device_id                 10
[INF][ALL][00:motionplus] device_tmo                30
[INF][ALL][00:motionplus] pause                     off
[INF][ALL][00:motionplus] target_dir                /home/andy/Videos/motionplus
[INF][ALL][00:motionplus] watchdog_tmo              30
[INF][ALL][00:motionplus] watchdog_kill             10
[INF][ALL][00:motionplus] v4l2_device               /dev/video0
[INF][ALL][00:motionplus] v4l2_params               palette=8
[INF][ALL][00:motionplus] netcam_url                <redacted>
[INF][ALL][00:motionplus] netcam_params             
[INF][ALL][00:motionplus] netcam_high_url           <redacted>
[INF][ALL][00:motionplus] netcam_high_params        
[INF][ALL][00:motionplus] netcam_userpass           <redacted>
[INF][ALL][00:motionplus] libcam_device             
[INF][ALL][00:motionplus] libcam_params             
[INF][ALL][00:motionplus] width                     640
[INF][ALL][00:motionplus] height                    480
[INF][ALL][00:motionplus] framerate                 25
[INF][ALL][00:motionplus] rotate                    0
[INF][ALL][00:motionplus] flip_axis                 vertical
[INF][ALL][00:motionplus] locate_motion_mode        off
[INF][ALL][00:motionplus] locate_motion_style       box
[INF][ALL][00:motionplus] text_left                 
[INF][ALL][00:motionplus] text_right                %Y-%m-%d\n%T
[INF][ALL][00:motionplus] text_changes              off
[INF][ALL][00:motionplus] text_scale                1
[INF][ALL][00:motionplus] text_event                %Y%m%d%H%M%S
[INF][ALL][00:motionplus] emulate_motion            off
[INF][ALL][00:motionplus] threshold                 1500
[INF][ALL][00:motionplus] threshold_maximum         0
[INF][ALL][00:motionplus] threshold_sdevx           0
[INF][ALL][00:motionplus] threshold_sdevy           0
[INF][ALL][00:motionplus] threshold_sdevxy          0
[INF][ALL][00:motionplus] threshold_ratio           0
[INF][ALL][00:motionplus] threshold_ratio_change    64
[INF][ALL][00:motionplus] threshold_tune            off
[INF][ALL][00:motionplus] secondary_method          none
[INF][ALL][00:motionplus] secondary_params          
[INF][ALL][00:motionplus] noise_level               32
[INF][ALL][00:motionplus] noise_tune                on
[INF][ALL][00:motionplus] despeckle_filter          EedDl
[INF][ALL][00:motionplus] area_detect               
[INF][ALL][00:motionplus] mask_file                 
[INF][ALL][00:motionplus] mask_privacy              
[INF][ALL][00:motionplus] smart_mask_speed          0
[INF][ALL][00:motionplus] lightswitch_percent       0
[INF][ALL][00:motionplus] lightswitch_frames        5
[INF][ALL][00:motionplus] minimum_motion_frames     1
[INF][ALL][00:motionplus] static_object_time        10
[INF][ALL][00:motionplus] event_gap                 60
[INF][ALL][00:motionplus] pre_capture               3
[INF][ALL][00:motionplus] post_capture              10
[INF][ALL][00:motionplus] on_event_start            
[INF][ALL][00:motionplus] on_event_end              
[INF][ALL][00:motionplus] on_picture_save           
[INF][ALL][00:motionplus] on_area_detected          
[INF][ALL][00:motionplus] on_motion_detected        
[INF][ALL][00:motionplus] on_movie_start            
[INF][ALL][00:motionplus] on_movie_end              
[INF][ALL][00:motionplus] on_camera_lost            
[INF][ALL][00:motionplus] on_camera_found           
[INF][ALL][00:motionplus] on_secondary_detect       
[INF][ALL][00:motionplus] on_action_user            
[INF][ALL][00:motionplus] on_sound_alert            
[INF][ALL][00:motionplus] picture_output            off
[INF][ALL][00:motionplus] picture_output_motion     off
[INF][ALL][00:motionplus] picture_type              jpeg
[INF][ALL][00:motionplus] picture_quality           75
[INF][ALL][00:motionplus] picture_exif              
[INF][ALL][00:motionplus] picture_filename          %v-%Y%m%d%H%M%S-%q
[INF][ALL][00:motionplus] snapshot_interval         0
[INF][ALL][00:motionplus] snapshot_filename         %v-%Y%m%d%H%M%S-snapshot
[INF][ALL][00:motionplus] movie_output              off
[INF][ALL][00:motionplus] movie_output_motion       off
[INF][ALL][00:motionplus] movie_max_time            120
[INF][ALL][00:motionplus] movie_bps                 400000
[INF][ALL][00:motionplus] movie_quality             45
[INF][ALL][00:motionplus] movie_container           mkv
[INF][ALL][00:motionplus] movie_passthrough         off
[INF][ALL][00:motionplus] movie_filename            %v-%Y%m%d%H%M%S
[INF][ALL][00:motionplus] movie_retain              all
[INF][ALL][00:motionplus] movie_extpipe_use         off
[INF][ALL][00:motionplus] movie_extpipe             
[INF][ALL][00:motionplus] timelapse_interval        0
[INF][ALL][00:motionplus] timelapse_mode            daily
[INF][ALL][00:motionplus] timelapse_fps             30
[INF][ALL][00:motionplus] timelapse_container       mpg
[INF][ALL][00:motionplus] timelapse_filename        %Y%m%d-timelapse
[INF][ALL][00:motionplus] video_pipe                
[INF][ALL][00:motionplus] video_pipe_motion         
[INF][ALL][00:motionplus] webcontrol_port           8080
[INF][ALL][00:motionplus] webcontrol_port2          0
[INF][ALL][00:motionplus] webcontrol_base_path      
[INF][ALL][00:motionplus] webcontrol_ipv6           off
[INF][ALL][00:motionplus] webcontrol_localhost      on
[INF][ALL][00:motionplus] webcontrol_parms          0
[INF][ALL][00:motionplus] webcontrol_interface      default
[INF][ALL][00:motionplus] webcontrol_auth_method    none
[INF][ALL][00:motionplus] webcontrol_authentication <redacted>
[INF][ALL][00:motionplus] webcontrol_tls            off
[INF][ALL][00:motionplus] webcontrol_cert           <redacted>
[INF][ALL][00:motionplus] webcontrol_key            <redacted>
[INF][ALL][00:motionplus] webcontrol_headers        
[INF][ALL][00:motionplus] webcontrol_html           
[INF][ALL][00:motionplus] webcontrol_actions        
[INF][ALL][00:motionplus] webcontrol_lock_minutes   10
[INF][ALL][00:motionplus] webcontrol_lock_attempts  3
[INF][ALL][00:motionplus] webcontrol_lock_script    
[INF][ALL][00:motionplus] stream_preview_scale      100
[INF][ALL][00:motionplus] stream_preview_newline    off
[INF][ALL][00:motionplus] stream_preview_method     mjpg
[INF][ALL][00:motionplus] stream_preview_ptz        on
[INF][ALL][00:motionplus] stream_quality            50
[INF][ALL][00:motionplus] stream_grey               off
[INF][ALL][00:motionplus] stream_motion             off
[INF][ALL][00:motionplus] stream_maxrate            1
[INF][ALL][00:motionplus] stream_scan_time          5
[INF][ALL][00:motionplus] stream_scan_scale         25
[INF][ALL][00:motionplus] database_type             
[INF][ALL][00:motionplus] database_dbname           
[INF][ALL][00:motionplus] database_host             
[INF][ALL][00:motionplus] database_port             0
[INF][ALL][00:motionplus] database_user             <redacted>
[INF][ALL][00:motionplus] database_password         <redacted>
[INF][ALL][00:motionplus] database_busy_timeout     0
[INF][ALL][00:motionplus] sql_event_start           
[INF][ALL][00:motionplus] sql_event_end             
[INF][ALL][00:motionplus] sql_movie_start           
[INF][ALL][00:motionplus] sql_movie_end             
[INF][ALL][00:motionplus] sql_pic_save              
[INF][ALL][00:motionplus] ptz_auto_track            off
[INF][ALL][00:motionplus] ptz_wait                  0
[INF][ALL][00:motionplus] ptz_move_track            
[INF][ALL][00:motionplus] ptz_pan_left              
[INF][ALL][00:motionplus] ptz_pan_right             
[INF][ALL][00:motionplus] ptz_tilt_up               
[INF][ALL][00:motionplus] ptz_tilt_down             
[INF][ALL][00:motionplus] ptz_zoom_in               
[INF][ALL][00:motionplus] ptz_zoom_out              
[INF][ALL][00:motionplus] snd_device                
[INF][ALL][00:motionplus] snd_params                
[INF][ALL][00:motionplus] snd_window                hamming
[INF][ALL][00:motionplus] snd_show                  off
[DBG][ALL][00:motionplus] motpls_ntc: v4l2   : available
[DBG][ALL][00:motionplus] motpls_ntc: webp   : available
[DBG][ALL][00:motionplus] motpls_ntc: libcam : not available
[DBG][ALL][00:motionplus] motpls_ntc: mysql  : not available
[DBG][ALL][00:motionplus] motpls_ntc: MariaDB: available
[DBG][ALL][00:motionplus] motpls_ntc: sqlite3: available
[DBG][ALL][00:motionplus] motpls_ntc: pgsql  : available
[DBG][ALL][00:motionplus] motpls_ntc: nls    : available
[DBG][ALL][00:motionplus] motpls_ntc: alsa   : available
[DBG][ALL][00:motionplus] motpls_ntc: fftw3  : available
[NTC][STR][00:motionplus] webu_init_webcontrol: Starting webcontrol on port 8080
[INF][ALL][00:motionplus] util_parms_add: Parsed: >event< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >snapshot< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >pause< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >restart< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >stop< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >config_write< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >camera_add< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >camera_delete< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >config< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >ptz< >off<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >movies< >on<
[INF][ALL][00:motionplus] util_parms_add: Parsed: >action_user< >off<
[DBG][STR][00:motionplus] webu_mhd_features_basic: Basic authentication: available
[DBG][STR][00:motionplus] webu_mhd_features_digest: Digest authentication: available
[DBG][STR][00:motionplus] webu_mhd_features_ipv6: IPV6: available
[DBG][STR][00:motionplus] webu_mhd_features_tls: SSL/TLS: available
[NTC][STR][00:motionplus] webu_init_webcontrol: Started webcontrol on port 8080
[NTC][ENC][00:motionplus] motpls_av_init: libavcodec  version 58.134.100
[NTC][ENC][00:motionplus] motpls_av_init: libavformat version 58.76.100
[NTC][ALL][00:motionplus] main: Motionplus pid: 250790
Motion-Project / motionplus

v4l2 devices not working #99
