Annotated edit history of
DualHead version 5, including all changes.
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JasonDrake |
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Generally used to describe a video card capable of running two displays. |
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Also used to describe a computer set up with two displays connected |
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IanMcDonald |
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This page has been created primarily to link to some notes on how to acheive the latter of these |
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JasonDrake |
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two definitions |
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JohnMcPherson |
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There are basically two ways to acheive a dual head setup, you need either a DualHead video card (a video card that supports 2 displays), or use two cards to run the two displays (ie one display each). |
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JasonDrake |
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JohnMcPherson |
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The [X11] protocol has long had support for multiple cards. For the [XOrg] server, this is done by configuring multiple "Device" and "Screen" sections in the <tt>xorg.conf</tt> file. |
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JasonDrake |
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JohnMcPherson |
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For DualHead cards the setup is somewhat specific to the brand of card you have. For [XOrg] you can use its <tt>Xinerama</tt> extension, but some cards/drivers use their own method for dual head. |
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JasonDrake |
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JohnMcPherson |
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For an example of dual-head using Xinerama, (with the Intel i810/i915 graphics chipset + driver), see [i915-xorg.conf]. |
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JasonDrake |
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JohnMcPherson |
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Nvidia based cards use their own method - see TwinView. |
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JasonDrake |
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JohnMcPherson |
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For Ati/radeon based cards see DualHeadAti. |
