User guide

Viz Engine Administrator’s Guide
Page 278 Copyright © 2014 Vizrt
1. Open the Matrox X.info utility on the Windows taskbar.
2. Select Hardware, and click the Upgrade Model button on the right.
3. From the appearing menu, choose Upgrade Board from Matrox Dongle Upgrade
File (.MDUF).
4. Click Browse to locate and select the .MDUF file to start the upgrade process.
5. Restart the machine for the changes to take effect.
To reset to factory settings
1. Open the Matrox X.info utility on the Windows taskbar.
2. Select Hardware, and click the Upgrade Model button on the right.
3. From the appearing menu, choose Reset to Factory Settings.
4. Restart the machine for the changes to take effect.
16.4 Watchdog
A watchdog, aka automatic bypass, is essentially a timer that allows a system to
continue video pass-through during an application crash or system failure. The X.mio
has a built-in watchdog capability; however, the bypass only works for video (including
optional embedded audio), while AES audio is not bypassed.
The watchdog is implemented as a mechanical (copper-to-copper) and a hardware
bypass. The mechanical bypass is basically a relay (input to output) that works in
case of a power loss while a hardware bypass is performed in a powered machine
state (input to the board’s output). In hardware bypass mode the incoming video and
reference signals must be compliant to provide proper watchdog functionality.
Transition from Watchdog to video
When watchdog is deactivated (with video_loopthrough_mode=2) and a scene with
DVE input is loaded, a few black frames are shown. The watchdog should be activated
after the input channel is ready. To provide a glitch free transition from watchdog to
video you may configure the watchdog’s deactivation delay by setting the delay in
fields for the watchdog to wait before deactivation.
Under normal circumstances the watchdog is deactivated as soon as the first
object is present in the scene or an input is active (depending on the flag
video_loopthrough_mode). With the Matrox0.WatchDogDeactivationDelay flag
you can compensate a delay occurring while loading the scene completely and thus
preventing black frames from being played out.
16.5 Troubleshooting
It might be necessary to reset the X.mio2 Plus board. This needs to be done for
example when Viz Engine reports:
• "0xefac9019: Generic driver error: The requested operation was
unsuccessful" at startup.
• "0xeddd8008: Topology driver error: Watchdog specified already in use
by another application." at startup.
• "VideoClipInOut_Xmio2Plus::SequenceVideoOut SequenceVideoOut no output
node." during operation.