Give it a go - I've used this technique on a number of sites with Sun
Ray 1s, 150s and 170s. The screen goes blank, then after about 10
seconds power saving mode kicks in. By the way, the "xset screensaver"
is set to on by default in CDE and dtlogin, so that's why the Sun Ray
goes into power saving mode there.
As to the reason why it works locally but not on the Sun Ray in JDS, the
following is my own guesswork and should not be relied upon to be accurate!
With a local monitor:
* xscreensaver blanks the screen by basically drawing a black square on
the display
* then at the configured time, xscreensaver sends dpms or fbpm (power
saving) commands to the Xserver
* the Xserver device driver translates this into device-specific
commands for the monitor
* the monitor goes into power saving mode
With a Sun Ray, the Xserver software does not understand or does not
know how to translate the power saving commands. This can be confirmed
by trying the following commands on a local console and on a Sun Ray:
$ xset q
With a Sun Ray using xset:
* xset blanks the screen by telling the Xserver to go into screensaver mode
* the Sun Ray Xserver recognises that it is in screensaver mode and
sends power saving commands to the Sun Ray thin client
* the Sun Ray goes into power saving mode.
Based on this the "real" fix is for the Sun Ray guys at Sun to add dpms
support to the Sun Ray Xserver. I don't know if this is technically
feasible or not. But for now the workaround is to use xset.
Regards
Tom
Blaster wrote:
Well, I will try this...But I would be surprised if this is the fix...
When I log in with the same account on the server console, the screen does
blank and go into low power, why doesn't it on the Sun Ray?
Doesn't a power save mode need to be enabled by default to get the Energy
Star rating?
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:sunray-users-
[EMAIL PROTECTED] On Behalf Of Tom Shaw
Sent: Thursday, June 08, 2006 8:50 PM
To: SunRay-Users mailing list
Subject: Re: [SunRay-Users] Low Power mode for monitors
In Solaris at least you need to use xset instead of xscreensaver:
/usr/openwin/bin/xset s on s blank s 300
(blank after 300 seconds - this may not be the exact syntax but it should
get you started)
If you want to turn this on for every user, put it in a script in
/etc/dt/config/Xsession.d/
Regards
Tom
----- Original Message -----
From: David Mackintosh <[EMAIL PROTECTED]>
Date: Friday, June 9, 2006 9:36 am
Subject: Re: [SunRay-Users] Low Power mode for monitors
To: SunRay-Users mailing list <[email protected]>
On Thu, Jun 08, 2006 at 07:37:26PM -0400, Joe Reid wrote:
On Tue, Jun 06, 2006 at 09:05:11PM -0500, Blaster wrote:
I have a Sun Ray 1 with an LCD monitor as well as a Sun Ray 150.
I can't get either of these units to put the monitor into low
power mode.
Is this possible? The screen blanks, but the back light stays on.
Would someone who knows xscreensaver speak up. This question gets
asked every couple of weeks and no one ever responds. dtlogin's
screen> blanks and eventually my monitors go to power saving mode,
my lcd's and
my sunray 150. But when I'm logged in they never do. I've check
with> xscreensaver-demo and I have power mgt turned on. What gives?
While I can't say what's going on, I'll note that Fedora Core 3 will
put the monitors into proper power-saving mode -- however under some
strange circumstances will have a corrupted font set when the screen
is restored.
More mud for the waters.
--
/\oo/\
/ /()\ \ David Mackintosh | Public Key:
[EMAIL PROTECTED] | http://www.xdroop.com/dave/gpg.html
$ gpg --recv-keys --keyserver subkeys.pgp.net 4C032504
Mystery attachment? http://xdroop.dhs.org/space/GPG
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--
<http://www.sun.com> * Tom Shaw *
*Sun Microsystems, Inc.*
AU
Phone +61 8 9225 0312
Fax +61 8 9225 0320
Email [EMAIL PROTECTED]
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