| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="ts_gui-2d-grayed-out">
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| 4 | <title>GUI: 2D Video Acceleration Option is Grayed Out</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>
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| 8 | To use 2D Video Acceleration within <ph conkeyref="vbox-conkeyref-phrases/product-name"/>, your host's
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| 9 | video card should support certain OpenGL extensions. On startup,
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| 10 | <ph conkeyref="vbox-conkeyref-phrases/product-name"/> checks for those extensions, and, if the test
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| 11 | fails, this option is silently grayed out.
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| 12 | </p>
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| 13 | <p>
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| 14 | To find out why it has failed, you can manually execute the
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| 15 | following command:
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| 16 | </p>
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| 17 | <pre xml:space="preserve">$ VBoxTestOGL --log "log_file_name" --test 2D</pre>
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| 18 | <p>
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| 19 | It will list the required OpenGL extensions one by one and will
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| 20 | show you which one failed the test. This usually means that you
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| 21 | are running an outdated or misconfigured OpenGL driver on your
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| 22 | host. It can also mean that your video chip is lacking required
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| 23 | functionality.
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| 24 | </p>
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| 25 | </body>
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| 26 |
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| 27 | </topic>
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