Turn off monitor?

Zeno McDohl · 01-19-2006, 10:46 AM

My computer has no button to turn off the monitor. Is there a way to turn it off (via the OS/software) so it doesn't burn an image into the screen? I'm half sure there is, since I've seen it done.

And a quick question. How do I fully remove Apache? I removed the package, but I still get Apache related errors on shutdown.

gilead · 01-19-2006, 01:20 PM

What are the errors? If you've uninstalled the package all of the executables should be gone. Were you seeing something like 'No such file or directory'?

If so, check /etc/rc.d/rc.6 & /etc/rc.d/rc.M for lines containing '/etc/rc.d/rc.httpd'. They should be wrapped in checks to see if the file is executable, but if the check has been removed you'll get an error when the script is run.

nilleso · 01-19-2006, 01:33 PM

...and for the monitor use a screensave
xscreensaver

Zeno McDohl · 01-19-2006, 04:31 PM

For Apache, I get:

Quote:

/usr/sbin/apachect1 stop: httpd (no pid file) not running

And if I try xscreensaver I get an error:

Quote:

warning: $DISPLAY is not set: defaulting to ":0.0"
Can't open display :0.0

Oh and I don't want a screensaver. I want the monitor 'off' (The power icon turns orange).

Zeno McDohl · 01-21-2006, 08:33 PM

Okay my monitor turns black after some idle time, so that works. Still can't get that pid Apache error away.

Pocketace · 01-21-2006, 11:19 PM

On your monitor problem, if you have the acpi stuff running you can try using the xset command. It would look like this: xset dpms force off

that should work.

gilead · 01-21-2006, 11:31 PM

You can safely ignore the Apache error - it's trying to close it down but it's not running anyway. To stop it happening though, you can run chmod -x /etc/rc.d/rc.httpd and that should stop it.

Oinopion · 01-22-2006, 05:59 AM

To shutdown monitor physically you have to have:

Code:

    Option "DPMS"

in xorg.conf in 'Monitor' section.

Zeno McDohl · 01-22-2006, 12:15 PM

But isn't that for X? I don't use X because this is a server.

phil.d.g · 01-22-2006, 12:20 PM

All the suggestions for your monitor so far have been for X. Does the monitor just blank and not power down? I had the same problem, I think its because, in layman's terms, the kernel doesn't know how to tell your graphics card to signal the monitor to power down, I never found a solution unfortunately

gilead · 01-22-2006, 12:42 PM

In my startup scripts I have the following to blank my monitor - I'd forgotten it was even there:

Code:

/bin/setterm -blank 15 -powersave powerdown -powerdown 60

phil.d.g · 01-22-2006, 12:44 PM

Yes, its in /etc/rc.d/rc.M by default, still certain graphics cards won't send the monitor to sleep when they're supposed to

gilead · 01-22-2006, 12:53 PM

A hot day here without the air conditioning on sends my monitor (and motherboard) to sleep with or without help from the software

MannyNix · 01-23-2006, 02:51 AM

Thank you Oinopion!
I was wondering why the suspend mode only worked with other distros, i was missing Option "DPMS" i had recompiled my kernel and even tried tweaking rc.M and i still didn't know why my viewsonic only went blank, but not suspend. Learning new little things is one of the fun things of running slack

Zeno McDohl · 01-26-2006, 06:20 PM

I'm still looking for a way to power off the monitor off via bash. If it idles, the monitor will "black" out but the monitor will still be on and emitting a light.