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doc: add note about xcb (closes #361)

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Robert Jördens 2016-03-31 10:25:39 +02:00
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doc/manual/installing.rst
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@ -88,6 +88,12 @@ the existing environments using::
$ conda env list
.. note::
The ``qt5`` package requires (on Linux only) libraries not packaged in the ``m-labs`` conda channels.
Those need to be installed through the Linux distribution's mechanism.
If ``artiq_gui`` does not start because ``it could not find or load the Qt platform plugin "xcb"``, install the various ``libxcb-*`` packages through your distribution's mechanism.
The names of the libraries missing can be obtained from the output of a command like ``ldd [path-to-conda-installation]/envs/artiq-[date]/lib/qt5/plugins/platform/libqxcb.so``.
Preparing the core device FPGA board
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^