[THIN] Re: FW: ICA Multiple screen support Issue

Dan,

 

You should take a look at http://support.citrix.com/article/ctx114497 -- it has some steps that are not in ctx115637 (specifically see steps 10-14), such as the need to deny the System account write permission to the thin16 registry key because “Note: Without this step, IMA overrides any change made to ThinWire's MaxLVBMem parameter in the registry with the appropriate farm setting.”

 

On a related note, I am encountering an issue in a published application that started after we moved from Presentation Server 4.00 R03 to Presentation Server 4.00 R05.  The issue is that within the software there are certain windows that pop up and have scroll bars to access additional content.  In some cases these scroll bars are not present, in others the scroll bar is present but does not allow the user to see all of the far right fields.   In the configuration I list below when I spawn these windows on my primary (portrait) monitor, there is a scroll bar but the last of the fields do not appear.  When I spawn the window on my secondary (landscape) monitor the scroll bar is present and all fields are accessible.  When both monitors are in landscape orientation the scroll bar works as intended on both monitors.  When I uninstall PSE400W2K3R05 from the server, and spawn the window on my primary monitor the window carries over onto the secondary monitor (the window appears to be 1150 pixels wide). 

 

Installing PSE400W2K3R06 does not resolve the problem. 

 

System:

 

Server:  Windows 2003, SP 2

Citrix Presentation Server 4.00 with the following hotfixes applied:

                PSE400R01W2K3061

                PSE400R01W2K3064

                PSE400R03W2K3024

                PSE400R03W2K3050

                PSE400R03W2K3051

                PSE400R03W2K3060

                PSE400R03W2K3076

                PSE400R03W2K3078

                PSE400R05W2K3001

                PSE400R05W2K3021

                PSE400R05W2K3023

                PSE400W2K3R01

                PSE400W2K3R02.0.1

                PSE400W2K3R03

                PSE400W2K3R05

Relevant Farm Settings:

                ICA Settings – Discard redundant graphics operations is marked

-          Alternate caching method is marked

-          Maximum memory to use for each session’s graphics: 8192KB

-          Degrade resolution first

-          Notify users of session degradation

Application:  published app , Full Screen 16-bit color.

Workstation:  Windows XP Pro, SP2

Monitors:

#1 (primary) Portrait orientation 1024 x 1280 x 16-bit color (actual resolution is set to 32-bit however our applications force color depth to 16-bit)

                #2 Landscape 1280 x 1024 x 16-bit color

Client:  XenApp 11.0.0.5357  (it also occurs on 10.0.0)

 

 

I have tried the following and observed no change in behavior:

changing the degradation bias to degrade color depth first

Toggling the Discard redundant graphics operations

Toggling Alternate caching method

Setting the maximum memory via registry hack outlined in ctx114497

 

 

We would like to avoid rolling back to R03 if at all possible and we cannot move to PS4.5 or XenApp 5 for another 6 months or so and unfortunately we need to find a resolution before that time.

 

My questions are:

1.       Does anyone know of any post-R05 hotfixes that may address this issue?

2.       Any suggestions for modifying the way windows are being handled?

 

 

 

I am already in contact with the developer of the application in question to see if there is any method to address the problem programmatically, however I would like to explore all avenues available.

 

 

Matthew Dilts

 

[THIN] Re: FW: ICA Multiple screen support Issue

Beware that the article mentions to be applicable for PS 4.5 and higher.   Nevertheless we used the settings as described to publish desktops with 5100*964*16 pixels from PS 4.0 to workstations with 4 screens. We noticed however that the relevant setting tends to "reset itself" to 8192 on reboot, which required us to implement a startup script to keep it active. All in all our experience with large published desktops on PS 4.0 was less than delectable and we're looking forward to deploy XenApp 5 for these applications.   Dan
From: thin-bounce@freelists.org [mailto:thin-bounce@freelists.org] On Behalf Of Carl Stalhood
Sent: Thursday, February 19, 2009 2:36 PM
To: thin@freelists.org
Subject: [THIN] Re: FW: ICA Multiple screen support Issue

The max color depth for ICA is 24-bit so the multiplier is 3, not 4.   This article answers your multi-monitor questions. There is a reg key that allows you to specify graphics memory beyond 8192.   http://support.citrix.com/article/ctx115637   I'm not sure how ICA handles multi-monitor with different resolutions on each monitor.

On Thu, Feb 19, 2009 at 12:05 AM, Angela Smith <angela_smith9@hotmail.com> wrote:
Hi

Further to this, if I set all 3 monitors to 1024*768, all 3 monitors work fine.  If I set all 3 monitors to 1440*900 the third monitor doesnt work.  It looks like there is a max resolution limit or the session is running out of graphics memory.

How can I check to see how much Display memory is in use?.  I changed the Farm setting "Maximum memory to use for each session's graphics" to the max which is 8192 but I continue to have the issue when working on the max resolution.

Thanks
Ang

From: angela_smith9@hotmail.com
To: thin@freelists.org
Subject: [THIN] ICA Multiple screen support Issue
Date: Thu, 19 Feb 2009 13:45:35 +1100

Hi

We have some users that have 3 monitors.  When running Published Applications, we find that 2 of the monitors work but the third does not.  You cannot drag a Published Application into the third monitor.  The first 2 monitors are fine but the third is ignored.  The monitor config is as follows:

19" Monitor (1440 x 900 x 32)
19" Monitor (1440 x 900 x 32)
17" Monitor (1280 x 1024 x 32)

We have not changed the default ICA Display memory allocation.  Farm setting "Maximum memory to use for each session's graphics" is set to
5625 kilobytes. 

Im not sure if the ICA session is running out of memory.  Where can I see the session memory usage?  Based on articles Ive seen, you can determine the memory requirements by:

1440 x 900 x 4 = 5184000
1440 x 900 x 4 = 5184000
1280 x 1024 x 4 =  5242880

Based on this calculation these sessions would require 14Mb.  Am on the right track with this?  Im currently running Citrix Presentation Server 4 on Windows 2003.  ICA Web Client version is 10.150.  Can anyone suggest any other changes apart from upping the graphics memory to 14Mb in trying to resolve this issue where I cannot drag to the third screen?

Thanks
Ang