Hdtv Adapter Troubleshooting - AMD Radeon HD 7990 User Manual

22 Reference
Turn off the on-board video.
•
Install a different graphics card. If there are no display issues, then the graphics
•
card in question may be defective.
If your motherboard has on-board graphics capabilities, you may need to disable
•
them. Consult your motherboard documentation for more information.
Note: Some manufacturers do not allow the on-board graphics to be disabled or to
become the secondary display.
For more troubleshooting tips, see knowledgebase article 737-22472: How to
Troubleshoot No Display on Re-start Issues.
6.1.1.4 The computer does not boot up properly.
Verify that the installation instructions were followed correctly.
Make certain that the graphics card is properly connected to the power supply and
the motherboard.
For Windows® operating systems, restart your system in Safe Mode. Use Windows
Device Manager to remove any graphics driver entries under Display Adapters and
restart your system.
Check the system configuration utility for interrupt assignments.
6.1.1.5 During software installation on a Windows® OS, the screen goes blank.
The software is still installing. Wait 20–30 minutes to make sure the software has
finished installing and then restart the computer.

6.1.2 HDTV Adapter Troubleshooting

The following troubleshooting tips may help if you experience problems with HDTV.
More troubleshooting information can be found on the AMD Web site. Please visit
http://support.amd.com.
6.1.2.1 There is a black border around the TV when using an HDMI™ connection.
Try adjusting the overscan/underscan of the TV. For more information, see
knowledgebase article GPU-72: Unable to Adjust a Digital Display to Match the
Resolution of the Desktop.
6.1.2.2 There is no display on the TV.
The TV will not display anything until Windows starts; this may take several minutes.
Make sure the TV is set to YPbPr input.
6.1.2.3 DVDs will not play in high-quality modes.
For displays connected using an analog connection, playback of CSS-protected DVDs
may be restricted to certain modes.
For displays connected using a digital connection, playback on certain DVD players
may also be restricted if HDCP (high-bandwidth content protection) cannot be enabled.
This restriction also applies to displays connected using active DisplayPort adapters.
AMD Radeon™ HD 7990 Graphics © 2013 Advanced Micro Devices, Inc.