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TOPIC: GENERATIVE SYNTAX

Evoluent Vertical Mouse 3 Configuration in Ubuntu 9.10

31st October 2009

On popping Ubuntu 9.10 onto a newly built PC, I noticed that the button mappings weren't as I had expected them to be. The button just below the wheel no longer acted like a right mouse button on a conventional mouse, and it really was throwing me. The cause was found to be in a file name evoluent-verticalmouse3.fdi that is found either in /usr/share/hal/fdi/policy/20thirdparty/ or /etc/hal/fdi/policy/.

So, to get things back as I wanted, I changed the following line:

<merge key="input.x11_options.ButtonMapping" type="string">1 2 2 4 5 6 7 3 8</merge>

to:

<merge key="input.x11_options.ButtonMapping" type="string">1 2 3 4 5 6 7 3 8</merge>

If there is no sign of the file on your system, then create one named evoluent-verticalmouse3.fdi in /etc/hal/fdi/policy/ with the following content and you should be away. All that's needed to set things to rights is to disconnect the mouse and reconnect it again in both cases.

<?xml version="1.0" encoding="ISO-8859-1"?>
<deviceinfo version="0.2">
<device>
<match key="info.capabilities" contains="input.mouse">
<match key="input.product" string="Kingsis Peripherals  Evoluent VerticalMouse 3">
<merge key="input.x11_driver" type="string">evdev</merge>
<merge key="input.x11_options.Emulate3Buttons" type="string">no</merge>
<merge key="input.x11_options.EmulateWheelButton" type="string">0</merge>
<merge key="input.x11_options.ZAxisMapping" type="string">4 5</merge>
<merge key="input.x11_options.ButtonMapping" type="string">1 2 3 4 5 6 7 3 8</merge>
</match>
</match>
</device>
</deviceinfo>

While I may not have appreciated the sudden change, it does show how you remap buttons on these mice, and that can be no bad thing. Saying that, hardware settings can be personal things, so it's best not to go changing defaults based on one person's preferences. It just goes to show how valuable discussions like that on Launchpad about this matter can be. For one, I am glad to know what happened and how to make things the way that I want them to be, though I realise that it may not suit everyone; that makes me reticent about asking for such things to be made the standard settings.

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