10bpc support is under active development all over the linux stack so while we wait for it to mature, request an alpha size of 8.
@@ -59,6 +59,7 @@ static int ctx_visual_attribs[] = {
GLX_STENCIL_SIZE, 0,
GLX_DEPTH_SIZE, 0,
GLX_BUFFER_SIZE, 32,
+ GLX_ALPHA_SIZE, 8,
GLX_DOUBLEBUFFER, true,
GLX_X_RENDERABLE, true,
None