[Bug 794716] gl/gbm: Requires a display connected

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=794716

Matthew Waters (ystreet00) <ystreet00 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|enhancement                 |normal

--- Comment #4 from Matthew Waters (ystreet00) <ystreet00 at gmail.com> ---
Again, hrm? This is not about having the cable become unplugged while running
(that's a separate bug) but rather that there is or never will be an output at
all.  Pretty much all the other implementations allow for no output correctly.

I just did a quick hack removing all the crtc/encoder/page flip stuff from the
gbm code and got this to work so it's definitely possible.

e.g. GST_GL_WINDOW=gbm videotestsrc num-buffers=1 ! glupload ! gleffects_xray !
glcolorconvert ! gldownload ! pngenc ! filesink location=test.png

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