I have written an opengl program in python but have hit issues with glxChooseVisual.
Basically it fails to find a matching visual if I use the attributes below every thing is fine
self.add_attribute(GLX.GLX_RGBA, 1)
self.add_attribute(GLX.GLX_RED_SIZE, 8)
self.add_attribute(GLX.GLX_GREEN_SIZE, 8)
self.add_attribute(GLX.GLX_BLUE_SIZE, 8)
how ever if I add any of the following for example it fails to match a visual and just segfaults due to glxchoosevisual returning none.
GLX_ALPHA_SIZE GLX_DEPTH_SIZE GLX_DOUBLEBUFFER GLX_DRAWABLE_TYPE
The machine has an nvidia card and also an onboard graphics card, i am using the nvidia one and games and app like blender work fine. I have read some where that glxchoosevisual may be using the wrong libgl.so file but i do not knwo how to check or how to further debug why my code can not match a visual.
running glxinfo returns the following, can anyone advise on how to proceed in debugging this ?
311 GLXFBConfigs:
visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat
----------------------------------------------------------------------------
0x105 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x106 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x107 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x108 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x109 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x10a 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x10b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x10c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x10d 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x10e 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x10f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x110 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x111 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x112 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x113 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x114 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x115 24 tc 0 24 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x116 24 dc 0 24 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x117 24 tc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x118 24 dc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x119 24 tc 0 24 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x11a 24 dc 0 24 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x11b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x11c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x11d 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x11e 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x11f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x120 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x121 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x122 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x123 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x124 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x125 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x126 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x127 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x128 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x129 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x12a 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x12b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x12c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x12d 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x12e 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x12f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x130 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x131 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x132 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x133 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x134 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x135 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x136 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x137 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x138 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x139 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x13a 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x13b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x13c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x13d 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x13e 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x13f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x140 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x141 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x142 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x143 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x144 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x145 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x146 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x147 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x148 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x149 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x14a 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x14b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x14c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x14d 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x14e 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x14f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x150 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x151 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x152 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x153 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x154 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x155 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x156 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x157 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x158 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x159 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x15a 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x15b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x15c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x15d 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x15e 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x15f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x160 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x161 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x162 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x163 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x164 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x165 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x166 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x167 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x168 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x169 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x16a 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x16b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x16c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x16d 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x16e 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x16f 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x170 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x171 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x172 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x173 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x174 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x175 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x176 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x177 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x178 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x179 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x17a 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x17b 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x17c 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x17d 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x17e 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x17f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x180 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x181 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x182 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x183 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x184 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x185 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x186 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x187 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x188 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x189 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x18a 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x18b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x18c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x18d 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 32 1 Ncon
0x18e 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 32 1 Ncon
0x18f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 32 1 Ncon
0x190 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 32 1 Ncon
0x191 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 32 1 Ncon
0x192 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 32 1 Ncon
0x193 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 32 1 Ncon
0x194 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 32 1 Ncon
0x195 24 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 32 1 Ncon
0x196 24 dc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 32 1 Ncon
0x197 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 32 1 Ncon
0x198 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 32 1 Ncon
0x199 24 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 32 1 Ncon
0x19a 24 dc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 32 1 Ncon
0x19b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 32 1 Ncon
0x19c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 32 1 Ncon
0x19d 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x19e 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x19f 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x1a0 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x1a1 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x1a2 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x1a3 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x1a4 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x1a5 32 tc 0 24 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x1a6 32 tc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x1a7 32 tc 0 24 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x1a8 32 tc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x1a9 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x1aa 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x1ab 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x1ac 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x1ad 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x1ae 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x1af 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x1b0 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x1b1 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x1b2 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x1b3 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x1b4 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x1b5 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x1b6 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x1b7 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x1b8 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x1b9 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x1ba 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x1bb 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x1bc 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x1bd 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x1be 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x1bf 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x1c0 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x1c1 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1c2 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1c3 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1c4 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1c5 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1c6 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1c7 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1c8 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1c9 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x1ca 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x1cb 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1cc 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1cd 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1ce 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1cf 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 8 1 Ncon
0x1d0 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 8 1 Ncon
0x1d1 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1d2 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1d3 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1d4 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 16 1 Ncon
0x1d5 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x1d6 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x1d7 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1d8 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1d9 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1da 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1db 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 8 1 Ncon
0x1dc 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 8 1 Ncon
0x1dd 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1de 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1df 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1e0 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 16 1 Ncon
0x1e1 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 32 1 Ncon
0x1e2 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 32 1 Ncon
0x1e3 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 32 1 Ncon
0x1e4 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 32 1 Ncon
0x1e5 32 tc 0 24 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 32 1 Ncon
0x1e6 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 32 1 Ncon
0x1e7 32 tc 0 24 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 32 1 Ncon
0x1e8 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 32 1 Ncon
0x1e9 0 sg 0 16 0 r y . 5 6 5 0 . . 4 16 0 16 16 16 16 0 0 None
0x1ea 0 sg 0 16 0 r . . 5 6 5 0 . . 4 16 0 16 16 16 16 0 0 None
0x1eb 0 sg 0 16 0 r y . 5 6 5 0 . . 4 24 0 16 16 16 16 0 0 None
0x1ec 0 sg 0 16 0 r . . 5 6 5 0 . . 4 24 0 16 16 16 16 0 0 None
0x1ed 0 sg 0 16 0 r y . 5 6 5 0 . . 4 24 8 16 16 16 16 0 0 None
0x1ee 0 sg 0 16 0 r . . 5 6 5 0 . . 4 24 8 16 16 16 16 0 0 None
0x1ef 0 sg 0 16 0 r y . 5 6 5 0 . . 4 0 0 16 16 16 16 0 0 None
0x1f0 0 sg 0 16 0 r . . 5 6 5 0 . . 4 0 0 16 16 16 16 0 0 None
0x1f1 0 sg 0 0 0 r . . 0 0 0 0 . . 4 16 0 16 16 16 16 0 0 None
0x1f2 0 sg 0 0 0 r . . 0 0 0 0 . . 4 24 0 16 16 16 16 0 0 None
0x1f3 0 sg 0 0 0 r . . 0 0 0 0 . . 4 24 8 16 16 16 16 0 0 None
0x1f4 0 sg 0 32 0 r . . 16 16 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x1f5 0 sg 0 32 0 . . 16 16 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x1f6 0 sg 0 32 0 r y . 16 16 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x1f7 0 sg 0 32 0 y . 16 16 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x1f8 0 sg 0 32 0 r . . 32 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x1f9 0 sg 0 32 0 . . 32 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x1fa 0 sg 0 32 0 r y . 32 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x1fb 0 sg 0 32 0 y . 32 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x1fc 0 sg 0 64 0 r . . 16 16 16 16 f . 4 0 0 16 16 16 16 0 0 None
0x1fd 0 sg 0 64 0 . . 16 16 16 16 f . 4 0 0 16 16 16 16 0 0 None
0x1fe 0 sg 0 64 0 r y . 16 16 16 16 f . 4 0 0 16 16 16 16 0 0 None
0x1ff 0 sg 0 64 0 y . 16 16 16 16 f . 4 0 0 16 16 16 16 0 0 None
0x200 0 sg 0 128 0 r . . 32 32 32 32 f . 4 0 0 16 16 16 16 0 0 None
0x201 0 sg 0 128 0 . . 32 32 32 32 f . 4 0 0 16 16 16 16 0 0 None
0x202 0 sg 0 128 0 r y . 32 32 32 32 f . 4 0 0 16 16 16 16 0 0 None
0x203 0 sg 0 128 0 y . 32 32 32 32 f . 4 0 0 16 16 16 16 0 0 None
0x204 0 sg 0 32 0 r . . 16 16 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x205 0 sg 0 32 0 . . 16 16 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x206 0 sg 0 32 0 r y . 16 16 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x207 0 sg 0 32 0 y . 16 16 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x208 0 sg 0 32 0 r . . 16 16 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x209 0 sg 0 32 0 . . 16 16 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x20a 0 sg 0 32 0 r y . 16 16 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x20b 0 sg 0 32 0 y . 16 16 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x20c 0 sg 0 32 0 r . . 32 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x20d 0 sg 0 32 0 . . 32 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x20e 0 sg 0 32 0 r y . 32 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x20f 0 sg 0 32 0 y . 32 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x210 0 sg 0 32 0 r . . 32 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x211 0 sg 0 32 0 . . 32 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x212 0 sg 0 32 0 r y . 32 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x213 0 sg 0 32 0 y . 32 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x214 0 sg 0 64 0 r . . 16 16 16 16 f . 4 24 0 16 16 16 16 0 0 None
0x215 0 sg 0 64 0 . . 16 16 16 16 f . 4 24 0 16 16 16 16 0 0 None
0x216 0 sg 0 64 0 r y . 16 16 16 16 f . 4 24 0 16 16 16 16 0 0 None
0x217 0 sg 0 64 0 y . 16 16 16 16 f . 4 24 0 16 16 16 16 0 0 None
0x218 0 sg 0 64 0 r . . 16 16 16 16 f . 4 24 8 16 16 16 16 0 0 None
0x219 0 sg 0 64 0 . . 16 16 16 16 f . 4 24 8 16 16 16 16 0 0 None
0x21a 0 sg 0 64 0 r y . 16 16 16 16 f . 4 24 8 16 16 16 16 0 0 None
0x21b 0 sg 0 64 0 y . 16 16 16 16 f . 4 24 8 16 16 16 16 0 0 None
0x21c 0 sg 0 128 0 r . . 32 32 32 32 f . 4 24 0 16 16 16 16 0 0 None
0x21d 0 sg 0 128 0 . . 32 32 32 32 f . 4 24 0 16 16 16 16 0 0 None
0x21e 0 sg 0 128 0 r y . 32 32 32 32 f . 4 24 0 16 16 16 16 0 0 None
0x21f 0 sg 0 128 0 y . 32 32 32 32 f . 4 24 0 16 16 16 16 0 0 None
0x220 0 sg 0 128 0 r . . 32 32 32 32 f . 4 24 8 16 16 16 16 0 0 None
0x221 0 sg 0 128 0 . . 32 32 32 32 f . 4 24 8 16 16 16 16 0 0 None
0x222 0 sg 0 128 0 r y . 32 32 32 32 f . 4 24 8 16 16 16 16 0 0 None
0x223 0 sg 0 128 0 y . 32 32 32 32 f . 4 24 8 16 16 16 16 0 0 None
0x224 0 sg 0 16 0 r . . 16 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x225 0 sg 0 16 0 . . 16 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x226 0 sg 0 16 0 r y . 16 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x227 0 sg 0 16 0 y . 16 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x228 0 sg 0 64 0 r . . 32 32 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x229 0 sg 0 64 0 . . 32 32 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x22a 0 sg 0 64 0 r y . 32 32 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x22b 0 sg 0 64 0 y . 32 32 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x22c 0 sg 0 16 0 r . . 16 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x22d 0 sg 0 16 0 . . 16 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x22e 0 sg 0 16 0 r y . 16 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x22f 0 sg 0 16 0 y . 16 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x230 0 sg 0 16 0 r . . 16 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x231 0 sg 0 16 0 . . 16 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x232 0 sg 0 16 0 r y . 16 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x233 0 sg 0 16 0 y . 16 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x234 0 sg 0 64 0 r . . 32 32 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x235 0 sg 0 64 0 . . 32 32 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x236 0 sg 0 64 0 r y . 32 32 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x237 0 sg 0 64 0 y . 32 32 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x238 0 sg 0 64 0 r . . 32 32 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x239 0 sg 0 64 0 . . 32 32 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x23a 0 sg 0 64 0 r y . 32 32 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x23b 0 sg 0 64 0 y . 32 32 0 0 f . 4 24 8 16 16 16 16 0 0 None
You're attempting to select a visual with a nonzero alpha component. That is… tricky. The problem here is, that an alpha channel on a regular window is often not exposed through a regular visual, but a FBConfig which has been introduced only with the XRender extension (note how glxinfo is reporting supported GLXFBConfigs instead of GLX Visuals for formats that have an alpha channel. So you must use glXChooseFBConfig to select a GLXFBConfig. You can then use glXGetVisualFromFBConfig to get the visual matching that FBConfig. Also you pass that FBConfig to either glXCreateContextAttribsARB or glXCreateNewContext depending on what you use for creating the context.
If your goal is implementing a OpenGL context that can be used for transparent rendering in a composited X11 environment there are a few additional hoops to jump. Namely you have to test which FBConfig corresponds to a XRender picture format that has an alpha_mask.
I showcased all this in my x11argb_opengl sample code.