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Disable screensaver for Raspberry Pi

The 7" Raspberry display in the kitchen is nice, but unfortunately by default the installation comes with a screensaver enabled. After a while, the display goes dark. No one wants to stare at a blank display, and touch the screen in order to see crucial information.

 

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Raspberry Pi: take a screenshot from a display with no keyboard and mouse

The Raspberry Pi in the kitchen runs relatively stable, but recently the browser (which is showing the openHAB HABpanel) popped up a warning in the upper right corner. That's annoying, because this area in HABpanel shows the outside temperature.

Before investigating what's going on, I had to figure out a way to get a screenshot of the display - without running into the kitchen with my mobile phone. And without attaching a keyboard all the time (to press the "Print" button).

 

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stupid slapd

In a project, i have to restart openldap's slapd from a daemon.

This failed, with no reason, no log entry at all.

After some debugging i found out that slapd requires a terminal ... just to vanish again a bit later into the daemon mode.

Ok, screen does the job:

screen -D -m /etc/init.d/ldap start

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