lcd4linux -h
  • print version number and a small help text, then exit
lcd4linux -l
  • list available drivers
lcd4linux [[:-c|key=val]] [[:-F]] [[:-f|config-file]] [[:-i[i]]] [[:-o|output]] [[:-q]] [[:-v]] [[:-p|pid-file]]
  • run lcd4linux
  • overwrite entries from the config-file with '-c'
  • do not fork and detach (run in foreground) with '-F'
  • use configuration from 'config-file' instead of /etc/lcd4linux.conf with '-f'
  • enter 'interactive mode' with '-i' (after display initialisation)
  • enter 'interactive mode' with '-ii' (before display initialisation)
  • write picture to 'output' (raster driver only) with '-o'
  • suppress startup and exit splash screen with '-q'
  • generate info messages with '-v'
  • generate debugging messages with '-vv'
  • specify a different pid-file location (default is '/var/run/') with '-p'

To quit interactive mode, just press Ctrl-D.


lcd4linux on foreground writes (depending on level) to stdout or stderr. The Text-Driver has its own diagnostics window. Started in the background (the default), lcd4linux uses your syslog daemon for logging. Facility is USER, levels are ERR, INFO and DEBUG.

If you experience problems with lcd4linux, always start it with lcd4linux -Fvv and send us the output!


See the Displays page for information on supported displays and their configuration.


See the Configuration page for information on lcd4linux.conf.

  • manual.txt
  • Last modified: 2020/07/17 18:33
  • (external edit)