Tech Note: Christie Spyder x20 VI Vertical Pixel Threshold Still Functionality

There is a known issue with x20 hardware which limits how Still Layers can be used in certain High Rez setups.

When configuring a frame with a VI Vertical Pixel count above 1850 pixels in Height, the system becomes limited with how it can utilize Still Stored images.

Only layers 3,6,11, and 14 can be used as still layers.  Using other layers will induce strange behavior, including cropping, random noise, and other various errors when adjusting Keyframe parameters.  

This is a hardware limitation with all x20s and all versions of Vista Advanced.

TL;DR-Exact wording via Vista Systems:  "If the vertical height is higher than 1850 only layers 3,6,11,14 can load stills. This is a hardware limitation for any version software."

I have also heard people suggest this limit was at 1856 pixels.  YMMV.

Spyder Console Crashing with Gefen Pro DVI Matrix Router over IP

I ran across a frustrating bug when using a GefenPro as an external DVI Matrix Router with an x20 and an M2C-50 console.  

When going idle for an unknown period of time(more than 1 minute, less than 10), a bug occurs. Recalling Command keys works fine, but function keys cause the console to hang and then loses connectivity to the spyder. It then re-establishes a connection and fires all the buffered function keys sequentially.

When the console crashes it registers a Remote error in the Alert Viewer: "Telnet Socket Timed Out Waiting for Response".

Using the Gefen IV serial protocol in Spyder, I was able to get a stable connection.

To solve this issue use a serial connection from the Spyder frame to the Gefen Pro Router.  

IP control can 'time out' under certain circumstances intermittently.