SUMMARY: Sun Ray screen savers and blanking
From: Daniel Baldoni (dbaldoni_at_iinet.net.au)
Date: 07/31/03
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Date: Fri, 01 Aug 2003 03:51:28 +0800 To: SUN managers' list <sunmanagers@sunmanagers.org>
G'day folks,
A synopsis of my original question was:
> I have a server running Solaris 8 2/02 (with very recent Recommended and J2SE
> patch clusters installed) acting as a Sun Ray 2.0 server.
>
> Part of the project was to develop a custom screensaver (which simply
> displays a couple of lines of text at randomly chosen locations every few
> minutes - very light CPU load). The screen-saver works perfectly when run by
> an ordinary (aka non-root) user on the server console and appears to work
> when run (by the same user) on a Sun Ray terminal. But, almost instantly,
> the terminal's display goes blank - as if it's gone into power-save mode.
>
> What I want to know is - does anybody know how to turn off that blanking?
>
> Above, I said the screen-saver appears to run - it appears in the process
> list for the user (and debugging log information is written as expected). We
> just don't get the display we expect - or if we do, we only get it for a few
> seconds before the screen blanks completely.
Surprisingly, there were no suggestions from the list (and the only reply in
comp.sys.sun.admin was wrong). However, I believe I have cracked the problam
and want this in the archives...
The solution appears to be the (undocumented) program utdevctl (in
/opt/SUNWut/lib). The following command:
echo disp_blank 0 | /opt/SUNWut/lib/utdevctl
given by the user at the start of a session appears to work.
This has now been working on a terminal (located right behind me as I type
this) for a couple of hours. However, remember that utdevctl is undocumented
(I found it by lookin at what utset does) - to the extent that a search on
docs.sun.com found nothing.
<RANT>
PS: Folks, can you *PLEASE* check your vacation programs so that they don't
transmit their "I'm out of the office" messages in response to
mail which correctly has the "Precedence: Bulk" Header?
Also, while I sympathise with anybody who takes steps to kill off spam,
one user on the list appears to have a spam-block in place for this
list.
</RANT>
-- -------------------------------------------------------+--------------------- Daniel Baldoni BAppSc, PGradDipCompSci | Technical Director require 'std/disclaimer.pl' | LcdS Pty. Ltd. -------------------------------------------------------+ 856B Canning Hwy Phone/FAX: +61-8-9364-8171 | Applecross Mobile: 041-888-9794 | WA 6153 URL: http://www.lcds.com.au/ | Australia -------------------------------------------------------+--------------------- "Any time there's something so ridiculous that no rational systems programmer would even consider trying it, they send for me."; paraphrased from "King Of The Murgos" by David Eddings. (I'm not good, just crazy) _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers
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