Archive for the ‘XenDesktop’ Category

Tip: Configure a Keyboard shortcut to minimize fullscreen Citrix or Microsoft RDS sessions for a Linux based IGEL OS

Wednesday, October 3rd, 2012


very often i’ve been asked how a Citrix or Microsoft RDS fullscreen session can be minimized in an IGEL Universal Desktop LX/OS firmware. By default IGEL has not enabled this but this task is simple to do….

Open the IGEL Setup or the UMS Profile, now go to User Interface->Hotkeys->Commands and select Minimize all Windows… Click on Edit now and activate the hotkey, i prefer CTRL¦ALT and ESC (Write Escape in the Hotkey field to set ESC) but you can also set other combinations of course. Please make sure that your set combination do not conflict with any other Linux or Windows key combination!

Close the Setup or the profile (assign the profile to an Client if not already done) and here you go.



P.S.: One Extension, of course any local Client key mapping do not work if the keyboard is mapped into the session thru “real” USB redirection!

P.S.2: For ICA Sessions it could be required to Setup a second key combination to Stop the direct Keyboard Passthrough, this configuration can be found in the IGEL Setup->System->Registry->ica->wfclient and then configure the following Settings: keypassthroughescapechar and keypassthroughescapeshift. This can be also configured with a profile in the IGEL UMS. If you’re connecting thru the Firefox Browser (Citrix Webinterface) you have to Setup the configuration in the Default.ica file from the Webinterface!

Fix jumping Mousepointer for Citrix Receiver (Linux)

Monday, October 1st, 2012


do you have dislocated offices and users reporting a jumping or flickering mouse pointer? From my expierence this is a bandwith/latency issue that should be investigated at all.

To fix or improve this for the Linux Version of the Citrix Receiver in an IGEL Firmware try:

System->Registry and then ica.wfclient.mousetimer=0, ica.wfclient.pointerclicktime=10 and ica.wfclient.pointergrabtime=10. All settings needs to be modified, test this with one device/user first before apply these modification to a bunch of clients.

Windows versions of the Receiver do not show this effect in general, they are just slower in this scenario.



Improve LX/OS performance for ICA sessions

Tuesday, September 18th, 2012

Hello Folks,

here are some settings that can improve the User experience for ICA sessions, mostly this is important for smaller devices like the old UD2 or UDC migrated old devices.

All settings can be found in system->registry, please test the settings one by one and not all at the same time! Use on your own risk! Test in advance!


x.xserver0.backingstore: activate
x.xserver0.backingstorepolicy: WhenMapped

ICA related:

ica.wfclient.twredundantimageitems (300 or 1000)

ica.wfclient.speedscreenbacompressedcachesize: 1024 or 4096
ica.wfclient.speedscreenbadecompressedcachesize: 4096
ica.wfclient.speedscreenbamaximumcompressionlevel: low
ica.wfclient.speedscreenmmasecondstobuffer: 5

Please note: This might improve the user experience but it don’t have to be, depending on the user scenario/environment!


USB redirection with Citrix XenApp and Microsoft Remote Desktop Services

Wednesday, June 6th, 2012

Did you ever ask the question what extended USB redirection in the IGEL product description means? No… It’s not USB redirection coming with VMWare View, XenDesktop or RemoteFX; this is included in the clients by default. It’s a solution called “USB for Remote Desktop” from Fabulatech. This solution was primary designed to offer USB redirection for Microsoft’s Remote Desktop Services.

Since the latest version it also support XenApp and it’s maybe a good add-on if you require “real” USB redirection for your users or devices with the benefit that you can configure all the devices from remote with the IGEL Universal Management Suite. To get more information’s have a look here:

Important: In the IGEL firmware release notes you can see what version of Fabulatech USB for Remote Desktop is installed, on the Terminal Server’s the same or compatible Version is required; don’t try to mix it! You also need the Advanced Feature Set for the IGEL Thin Client to be able to use it.