GtkGLArea fails to create complete gl framebuffer on some hardware (Gtk-WARNING **: fb setup not supported)
Submitted by pau..@..il.com
Link to original bug (#792174)
Description
The gtk warning: "Gtk-WARNING **: fb setup not supported" occurs when the gtk_gl_area_draw function is invoked and opengl rendering fails. This only occurs when I run my application on a laptop (lenovo L540 with Intel 4600 graphics), the same code runs with no problems on a number of desktop PCs.
I have also tried the example application at https://github.com/ebassi/glarea-example/ and the same problem occurs on the laptop.
Version: 3.22.x