I have installed Android x86 4.4-r2 on an Intel x86 platform with two display connectors: HDMI and DVI. The HDMI connector shall be wired to a 7 inches touchscreen and the DVI to a large monitor, which shall be powered on-demand (e.g. for watching videos). [EDIT: The ideal configuration would be an extended desktop view but so far I'm only considering display cloning.]
So far the second display is blank (no image). How can I configure Android x86 for dual monitor?
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Cloning works in recent builds from http://www.android-x86.org/download, specifically with android-x86_64-7.1-r2.iso with an external monitor connected via HDMI cable. No extra setup was necessary. But there doesn't seem to be way to set the resolution of the external monitor.
Sought Android x86 mailing list and it turns out it's not possible at the moment.