<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#ffffff">
I never have liked the blank screen concept, since it's harder to tell
if the machine is still running or is locked up or something. But, it
might save another few watts as you said.<br>
<br>
Ron<br>
<br>
On 4/2/2013 11:39 AM, Scott Bragg wrote:
<blockquote
cite="mid:CAMKTeNy=bxYJKhoCydOiJSD6Gef8TgACSA_dXW-s_pxYrzB=yQ@mail.gmail.com"
type="cite">
<div dir="ltr">You might try the 'blank screen' screen saver and see
if it drops it even more. Anything you do with the system that
produces animations is going to use more power than just blanking the
screen and displaying nothing. <br>
<br>
<br>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Tue, Apr 2, 2013 at 11:20 AM, Ron Frazier
(ALE) <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:atllinuxenthinfo@techstarship.com" target="_blank">atllinuxenthinfo@techstarship.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi
all,<br>
<br>
I've been monitoring my desktop computer that I mentioned in the
litecoin thread. I have a great little device attached to the power
cord called a kill-a-watt ez, which you can buy at Home Depot. This
device tabulates both instantaneous power consumption (every second)
and long term power consumption over a period of time, as well as cost
to operate whatever is plugged into it.<br>
<br>
At any given time, the numbers vary quite a bit, but you can get a
sense of the average.<br>
<br>
When I came in, this morning, I noticed the numbers were higher than
they typically were in its steady state mode. I did some testing and
found that the screen saver was consuming 15 - 30 W. I should note
that there is 100 W difference in power consumption between idling my
CPU and maxing it out. So, the screen saver is apparently taxing the
cpu and gpu a bit.<br>
<br>
At $ .097 / kwh, it costs $ 7 / mo to run a 100 W (or .1 KW) load for
24 hours / day for 30 days.<br>
<br>
So, just running the screen saver is potentially costing me $ 2 / mo.
It's not going to break the bank, but there's no point in wasting that
energy and money. My monitors are LCD's, which are not susceptible to
burn-in. So, I don't care what the screen saver it doing. It's more
of a lock screen.<br>
<br>
The screen saver I was using is mystify (windows). It puts fancy curvy
geometric lines on the screen which continually move and change. It
looks cool. I changed it to a slowly moving line of text which shows
the computer name. This text is a solid color, and I turned off the
"reflections" effect, which requires lots of 3d graphics computations.<br>
<br>
My power consumption now actually drops by a couple of W when the
screen saver is on.<br>
<br>
So, if you have a fancy smancy 3d screen saver running on a big
computer, or several big computers, maybe with multiple monitors, you
might want to look at how much power it's consuming.<br>
<br>
Just thought I'd pass this along. Hope it's helpful.<br>
<br>
Sincerely,<br>
<br>
Ron<br>
<br>
<br>
<br>
--<br>
<br>
Sent from my Android Acer A500 tablet with bluetooth keyboard and K-9
Mail.<br>
Please excuse my potential brevity if I'm typing on the touch screen.<br>
<br>
(PS - If you email me and don't get a quick response, you might want to<br>
call on the phone. I get about 300 emails per day from alternate energy<br>
mailing lists and such. I don't always see new email messages very
quickly.)<br>
<br>
Ron Frazier<br>
770-205-9422 (O) Leave a message.<br>
linuxdude AT <a moz-do-not-send="true" href="http://techstarship.com"
target="_blank">techstarship.com</a><br>
<br>
<br>
_______________________________________________<br>
Ale mailing list<br>
<a moz-do-not-send="true" href="mailto:Ale@ale.org">Ale@ale.org</a><br>
<a moz-do-not-send="true"
href="http://mail.ale.org/mailman/listinfo/ale" target="_blank">http://mail.ale.org/mailman/listinfo/ale</a><br>
See JOBS, ANNOUNCE and SCHOOLS lists at<br>
<a moz-do-not-send="true"
href="http://mail.ale.org/mailman/listinfo" target="_blank">http://mail.ale.org/mailman/listinfo</a><br>
</blockquote>
</div>
<br>
</div>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
Ale mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Ale@ale.org">Ale@ale.org</a>
<a class="moz-txt-link-freetext" href="http://mail.ale.org/mailman/listinfo/ale">http://mail.ale.org/mailman/listinfo/ale</a>
See JOBS, ANNOUNCE and SCHOOLS lists at
<a class="moz-txt-link-freetext" href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
(PS - If you email me and don't get a quick response, you might want to
call on the phone. I get about 300 emails per day from alternate energy
mailing lists and such. I don't always see new email messages very quickly.)
Ron Frazier
770-205-9422 (O) Leave a message.
linuxdude AT techstarship.com
</pre>
</body>
</html>