@@ -, +, @@ 
---
 cogl/driver/gl/gl/cogl-driver-gl.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)
--- a/cogl/driver/gl/gl/cogl-driver-gl.c	
+++ a/cogl/driver/gl/gl/cogl-driver-gl.c	
@@ -417,9 +417,23 @@ 
     }
 
   if (COGL_CHECK_GL_VERSION (ctx->glsl_major, ctx->glsl_minor, 1, 2))
-    /* We want to use version 120 if it is available so that the
-     * gl_PointCoord can be used. */
-    ctx->glsl_version_to_use = 120;
+    {
+      if (ctx->gpu.vendor == COGL_GPU_INFO_VENDOR_ATI)
+        {
+          /* The AMD/ATI fglrx driver requires GLSL 1.50 in order to
+           * use a forward compatible GL3 context.
+           *
+           * See: https://bugzilla.gnome.org/show_bug.cgi?id=756306
+           */
+          ctx->glsl_version_to_use = 150;
+        }
+      else
+        {
+          /* We want to use version 120 if it is available so that the
+           * gl_PointCoord can be used. */
+          ctx->glsl_version_to_use = 120;
+        }
+    }
   else
     ctx->glsl_version_to_use = 110;
 
--