[THIN] Re: KB: CTX113039 - A Screen Saver Appears in a Seamless Session When Idle
- From: "Matt Kosht" <matt.kosht@xxxxxxxxx>
- To: thin@xxxxxxxxxxxxx
- Date: Fri, 15 Feb 2008 14:49:55 -0500
Yes that makes total sense to me now! (apologies to Andrew who was
trying to tell me something similar earlier in this thread).
The thins (Neoware e140's Linux) have this capability, but would have
to set some cheesy global password (no AD integration). The split
User GPO is the way to go. I am still new to this AD stuff just
finished a Novell to MS migration. Tks.
-Matt
On Fri, Feb 15, 2008 at 1:18 PM, TSguy92 Lan <tsguy92@xxxxxxxxx> wrote:
> This policy value is a user side policy setting.
>
> Couldn't you create 2 security groups, one for the staff that work from thin
> client desktops, the other for the staff that run seamless apps, and then
> define your different screen saver values in two different GPO's for those
> groups?
>
> Baring that, how robust are your thin clients? Most thin devices have some
> option for enableing a screen saver on the devices themselves.
>
> HTH
>
> Lan
>
>
>
> On Fri, Feb 15, 2008 at 8:56 AM, Matt Kosht <matt.kosht@xxxxxxxxx> wrote:
> > I want to keep the screen saver for desktop sessions/thin clients but
> > disabled it for seamless (the Client's PC screen saver protects that
> > anyway).
> > -Matt
> >
> >
> >
> >
> > On Fri, Feb 15, 2008 at 11:50 AM, Andrew Wood
> > <andrew.wood@xxxxxxxxxxxxxxxx> wrote:
> > > Why not block inheritance on that gpo?
> > >
> > >
> > > -----Original Message-----
> > > From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
> Behalf
> > > Of Matt Kosht
> > > Sent: 15 February 2008 16:34
> > > To: thin@xxxxxxxxxxxxx
> > > Subject: [THIN] Re: KB: CTX113039 - A Screen Saver Appears in a Seamless
> > > Session When Idle
> > >
> > > I am getting some flak from our users on this. My company set a 20 min
> > > blank screen saver with password protection on the GPO that affects
> > > our Citrix servers. This is what I want for thin clients/desktop
> > > sessions. Does any one have a canned public domain script or program
> > > that can turn it off when launching a seamless app? If not I will try
> > > writing one, but I didn't want to reinvent the wheel.
> > > -matt
> > >
> > > On Tue, May 1, 2007 at 1:02 PM, Jim Kenzig ThinHelp.com
> > > <jkenzig@xxxxxxxxx> wrote:
> > > > CTX113039 - A Screen Saver Appears in a Seamless Session When Idle
> > > >
> > > >
> > > > This document was published at:
> > > http://support.citrix.com/article/CTX113039
> > > >
> > > >
> > > >
> > > > Document ID: CTX113039, Created on: Apr 30, 2007, Updated: Apr 30,
> 2007
> > > >
> > > > Products: Citrix MetaFrame XP 1.0 for Microsoft Windows 2000, Citrix
> > > > MetaFrame XP 1.0 for Microsoft Windows 2003, Citrix MetaFrame
> Presentation
> > > > Server 3.0 for Microsoft Windows 2000, Citrix MetaFrame Presentation
> > > Server
> > > > 3.0 for Microsoft Windows 2003, Citrix Presentation Server 4.0 for
> > > Microsoft
> > > > Windows 2000, Citrix Presentation Server 4.0 for Microsoft Windows
> 2003,
> > > > Citrix Presentation Server 4.5 for Windows Server 2003, Citrix
> > > Presentation
> > > > Server 4.5 for Windows Server 2003 x64 Edition
> > > >
> > > >
> > > >
> > > > Symptoms
> > > >
> > > > When working in a seamless application, a screen saver appears after
> > > leaving
> > > > the session idle.
> > > >
> > > > Troubleshooting
> > > >
> > > > By design, Citrix disables screen savers for published applications.
> > > Active
> > > > screen savers can contribute towards a performance hit to bandwidth
> and
> > > > server resources in general.
> > > >
> > > > Important: Citrix does not prevent screen savers from appearing in a
> > > > seamless session; it disables screen savers upon starting. This is
> > > > accomplished through wfshell when the session is started by calling
> > > > SystemParametersInfo( SPI_SETSCREENSAVEACTIVE, FALSE, 0,
> > > > SPIF_SENDWININICHANGE );
> > > >
> > > > Custom code can be written to view or modify the screen saver status
> by
> > > > using the following Microsoft Windows application programming
> interface
> > > > (API) call:
> > > >
> > > > SystemParametersInfo()
> > > >
> > > > With the following screen saver parameters:
> > > >
> > > > SPI_GETSCREENSAVEACTIVE
> > > > SPI_GETSCREENSAVERRUNNING
> > > > SPI_GETSCREENSAVETIMEOUT
> > > > SPI_SETSCREENSAVEACTIVE
> > > > SPI_SETSCREENSAVETIMEOUT
> > > >
> > > > See Microsoft Knowledge Base article 315725.
> > > >
> > > > Custom scripts can be written for enabling/disabling screen savers
> using
> > > the
> > > > above API calls.
> > > >
> > > > Cause
> > > >
> > > > There is a Group Policy object (GPO) in the environment with a screen
> > > saver
> > > > parameter configured. If the GPO is modified while there are sessions
> on
> > > the
> > > > server, the GPO sets SPI_SETSCREENSAVEACTIVE = TRUE, causing any
> active
> > > > sessions to go into a screen saver when left idle.
> > > >
> > > > The GPO setting can be found under User Configuration >Administrative
> > > > Templates > Control Panel > Display.
> > > >
> > > > View the setting by double-clicking Screen Saver.
> > > >
> > > >
> > > >
> > > > Resolution
> > > >
> > > > Log off all active sessions and relaunch them. This sets the
> > > > SPI_SETSCREENSAVEACTIVE parameter in the session to FALSE again.
> > > >
> > > > -Or-
> > > >
> > > > Make sure all sessions are logged off the server before modifying any
> GPO
> > > > with the screen saver setting enabled.
> > > >
> > > > More Information
> > > >
> > > > http://msdn2.microsoft.com/en-us/library/ms724947.aspx
> > > >
> > > > One example of code used is available from the CodeGuru developer Web
> > > site.
> > > >
> > > > http://www.codeguru.com/cpp/misc/misc/screensavers/article.php/c419/
> > > >
> > > > --
> > > > Jim Kenzig
> > > > Microsoft MVP - Terminal Services
> > > > http://www.thinhelp.com
> > > > Citrix Technology Professional
> > > > Provision Networks VIP
> > > > CEO The Kenzig Group
> > > > http://www.kenzig.com
> > > > Blog: http://www.techblink.com
> > > >
> > > >
> > > >
> > > >
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