--- a/dlls/wined3d/glsl_shader.c	
+++ a/dlls/wined3d/glsl_shader.c	
@@ -91,6 +91,7 @@ struct glsl_sample_function
     enum wined3d_data_type data_type;
     BOOL output_single_component;
     unsigned int offset_size;
+    BOOL disable_lod;
 };
 
 enum heap_node_op
@@ -3420,6 +3421,17 @@ static void shader_glsl_get_sample_function(const struct wined3d_shader_context
     const char *base = "texture", *type_part = "", *suffix = "";
     unsigned int coord_size, deriv_size;
 
+    if (shadow && lod && resource_type == WINED3D_SHADER_RESOURCE_TEXTURE_2DARRAY)
+    {
+        FIXME("GLSL does not support sample comparison with lod for 2D array textures.\n");
+        lod = FALSE;
+        sample_function->disable_lod = TRUE;
+    }
+    else
+    {
+        sample_function->disable_lod = FALSE;
+    }
+
     sample_function->data_type = ctx->reg_maps->resource_info[resource_idx].data_type;
 
     if (resource_type >= ARRAY_SIZE(resource_type_info))
@@ -3663,7 +3675,7 @@ static void PRINTF_ATTR(9, 10) shader_glsl_gen_sample_code(const struct wined3d_
     }
     if (dx && dy)
         shader_addline(ins->ctx->buffer, ", %s, %s", dx, dy);
-    else if (bias)
+    else if (bias && !sample_function->disable_lod)
         shader_addline(ins->ctx->buffer, ", %s", bias);
     if (sample_function->offset_size)
     {