Specifications

Appendix C Display Issues 243
HDMI Connector The HDMI connector is similar to the DVI connector in many ways, but is gener-
ally limited to carrying video standard resolutions (for example, 1280 x 720
or 1920 x 1080 pixels). In some cases, you can connect a DVI output to a
HDMI input using a simple adaptor cable.
GENERAL TROUBLESHOOTING Just like the display computer, the kind of display or projector used has a major
influence on the end result. This section provides additional guidance on deter-
mining the cause and possible remedy of display related problems.
Before You Begin Connect a regular CRT monitor to the output of your display computer to deter-
mine if the problem is introduced by the display technology or by the display
computer. This is a good advice whenever you see unwanted phenomena in
the displayed image – always plug in a CRT monitor (assuming you can find
one). If the problem goes away, it’s most likely caused by your display or
projector, in which case you should read this appendix. If the problem shows
up on the CRT monitor as well, you should instead focus on the display
computer (see “Computer Issues” on page 225).
JERKY MOVEMENTS An image moved using a Position track should move smoothly across the
displays. Jerky movement may be caused by either the display computer or the
display device itself. If the problem goes away when you view the output from
the display computer on a CRT display, you’ve determined that the jerkiness is
introduced by the display or projector you’re using.
▲ IMPORTANT: When making these tests, you should preferably use a CRT
monitor. If this is not possible, use a good quality LCD monitor. Some digital
display devices introduce artefacts of their own. Also, you may want to un-
plug the problematic display and connect the test display while the display
computer is running. If you restart the display computer, it may sense that