Is it possible to globally control the backlight while LCDd is running in a way that overrides individual clients?
For example, I have two clients connected that have their individual backlight set to off and a third alert client that turns it on while LCDd is currently set to "open". I'd like to be able to send a message direct to LCDd to switch the backlight state to "on" and force the backlight on for both clients then later set it back to "open" so the clients take care of the backlights as needed again.* One option would be to do this via a button press that LCDd captures (a key that none of the clients use) and even better would be via a message to the daemon itself so a cron job could signal the backlight.
*The idea is to turn on the backlight to see the LCD when the room is dark at night but I don't need the backlight during the day when the room lights are bright.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Is it possible to globally control the backlight while LCDd is running in a way that overrides individual clients?
For example, I have two clients connected that have their individual backlight set to off and a third alert client that turns it on while LCDd is currently set to "open". I'd like to be able to send a message direct to LCDd to switch the backlight state to "on" and force the backlight on for both clients then later set it back to "open" so the clients take care of the backlights as needed again.* One option would be to do this via a button press that LCDd captures (a key that none of the clients use) and even better would be via a message to the daemon itself so a cron job could signal the backlight.
*The idea is to turn on the backlight to see the LCD when the room is dark at night but I don't need the backlight during the day when the room lights are bright.
You can't adjustbrightness when LCDd is running.
Check here:
http://lcdproc.cvs.sourceforge.net/viewvc/lcdproc/lcdproc/server/commands/command_list.c?view=markup