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)
different background colors can be displayed. For this your user
needs read-access to the framebuffer device (/dev/fb0 or /dev/fb/0).
If this is the case, you can check with the following command:
> 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