finalcut/doc/framebuffer.txt

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Framebuffer
===========
The Final Cut determines the used number of bits per pixel (bpp)
for Linux framebuffer console to determine whether 16 (or more)
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different background colors can be displayed. Therefor your user
needs read-access to the framebuffer device (/dev/fb0 or /dev/fb/0).
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You can check this with the following command:
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> fbset -i
If the read-access is not given, it can help to add your user to
the group "video". To do this, please enter the following command:
> sudo usermod -a -G video USERNAME
You can check the group membership with the id command:
> id