Re: [Discuss-gnuradio] plotter_base.py problem

[Miguel A. Vallejo, EA4EOZ]

Marcus D. Leech wrote:

> Just on a hunch, try:
>
> export LIBGL_ALWAYS_INDIRECT=1
>
> Before you start any of the above applications.

Yes!, It works!

> OpenGL has, in my opinion, become a festering sore of incompatibilities
> and weird edge conditions.  It used to work reliably on just about
>     anything, but not anymore.  Newer version of OpenGL require various
> extensions in your display hardware, and will fail in weird ways
>     if your display hardware doesn't have what it expects.  The above
> environment variable is supposed to instruct OpenGL to use software-based
>     rendering and ignore the hardware.  For the simple 2-D stuff we do in
> Gnu Radio, Software-Based rendering is just fine.

Completely agree. Why use a monster like OpenGL to make simple 2D graphics?

Thnak you for your tip.