Installation guide

28 Matrox Graphics Card – Installation Guide
6 Restart your computer for changes to take effect.
TV output
The following troubleshooting items are for Matrox cards with TV output support (see page 7).
Problem TV image is garbled or unusable
(a blank screen, or rolling or overlapping screen images)
Cause
Your TV or video recorder may not be properly connected.
Solution Make sure your TV or video recorder is properly connected. For more information,
see page 7.
Cause Your TV or video recorder may not be properly set up.
Solution If a TV is connected to your Matrox graphics card and the TV has a TV/VIDEO
switch, set it to
VIDEO. For more information, see your TV manual.
Solution If a VCR is connected to your Matrox graphics card and the VCR has a
TUNER/LINE switch, set it to LINE. For more information, see your VCR manual.
Cause Matrox software may not be set up for TV output. Particularly, the TV standard
selected may not be correct.
Solution Windows 95/98: See “TV output setup”, page 12.
Solution Windows NT 4.0: See “TV output setup”, page 15.
Cause You may be using a DOS display mode without your Matrox graphics card being
properly configured for DOS TV output. DOS display modes are used for:
 DOS programs that run full-screen
 a full-screen DOS prompt under Windows
 text displayed before Windows starts
Solution Make sure your Matrox graphics card is properly configured to support TV output
for DOS display modes. You can do this with the Matrox CD-ROM setup program.
For more information, see the CD-ROM readme file.
Note: To restore multi-display mode, repeat steps 1–6, but clear the
Disable in
this hardware profile
check box in step 3.