Okay. I get an Segmentation Fault from the source of the first posting:

rain@rain:~/Dokumente/OpenGL/Minimal Example$ ./gl3example.cpp

glXCreateContextAttribsARB 0

Segmentation fault

An this is the output i get from Stephan A code:

rain@rain:~/Dokumente/OpenGL/Minimal Example$ ./gl3exa

GLX_ARB_get_proc_address GLX_ARB_multisample GLX_EXT_import_context GLX_EXT_visual_info GLX_EXT_visual_rating GLX_MESA_copy_sub_buffer GLX_MESA_swap_control GLX_MESA_swap_frame_usage GLX_OML_swap_method GLX_SGI_make_current_read GLX_SGI_swap_control GLX_SGI_video_sync GLX_SGIS_multisample GLX_SGIX_fbconfig GLX_SGIX_visual_select_group

Getting framebuffer config

Getting XVisualInfo

Creating colormap

Creating window

Mapping window

glXCreateContextAttribsARB entry point not found. Aborting.

Can you tell me what i’m doing wrong?