diff --git a/src/gallium/drivers/r300/r300_blit.c b/src/gallium/drivers/r300/r300_blit.c
index 4ac2589a9a7..0179753acef 100644
--- a/src/gallium/drivers/r300/r300_blit.c
+++ b/src/gallium/drivers/r300/r300_blit.c
@@ -272,6 +272,11 @@ static void r300_clear(struct pipe_context* pipe,
         } else {
             zmask_clear = r300_fast_zclear_allowed(r300, buffers);
             hiz_clear = r300_hiz_clear_allowed(r300);
+	    /* FIXME: only for testing! */
+            /*zmask_clear = FALSE;*/
+            /*zmask_clear = TRUE; // - this alone looks bad, bothfalse look good, zmaks_clear only false hiz_clear untouched is good */
+            /*hiz_clear = FALSE;*/
+            /*hiz_clear = TRUE; // enabling this and falsing zmask_clear shows picture but FPS is lower in glxgears...*/
         }
 
         /* If we need Hyper-Z. */
@@ -295,9 +300,14 @@ static void r300_clear(struct pipe_context* pipe,
                     hyperz_dcv = hyperz->zb_depthclearvalue =
                         r300_depth_clear_value(fb->zsbuf->format, depth, stencil);
 
+/*
+*/
                     r300_mark_atom_dirty(r300, &r300->zmask_clear);
                     r300_mark_atom_dirty(r300, &r300->gpu_flush);
                     buffers &= ~PIPE_CLEAR_DEPTHSTENCIL;
+/* FIXME: REMOVE LOG:
+*/
+                    fprintf(stderr, "KUL-A\n");
                 }
 
                 if (hiz_clear) {
@@ -349,6 +359,7 @@ static void r300_clear(struct pipe_context* pipe,
     }
     /* Enable CBZB clear. */
     else if (r300_cbzb_clear_allowed(r300, buffers)) {
+        fprintf(stderr, "KUL-B\n");
         struct r300_surface *surf = r300_surface(fb->cbufs[0]);
 
         hyperz->zb_depthclearvalue =
@@ -363,14 +374,17 @@ static void r300_clear(struct pipe_context* pipe,
 
     /* Clear. */
     if (buffers) {
+        fprintf(stderr, "KUL-C\n");
         /* Clear using the blitter. */
         r300_blitter_begin(r300, R300_CLEAR);
         util_blitter_clear(r300->blitter, width, height, 1,
                            buffers, color, depth, stencil);
         r300_blitter_end(r300);
+/* TIPP: here maybe not else if, just an if should be present??? */
     } else if (r300->zmask_clear.dirty ||
                r300->hiz_clear.dirty ||
                r300->cmask_clear.dirty) {
+        fprintf(stderr, "KUL-D\n");
         /* Just clear zmask and hiz now, this does not use the standard draw
          * procedure. */
         /* Calculate zmask_clear and hiz_clear atom sizes. */
@@ -391,11 +405,13 @@ static void r300_clear(struct pipe_context* pipe,
         r300->gpu_flush.dirty = FALSE;
 
         if (r300->zmask_clear.dirty) {
+            fprintf(stderr, "KUL-AKVA\n");
             r300_emit_zmask_clear(r300, r300->zmask_clear.size,
                                   r300->zmask_clear.state);
             r300->zmask_clear.dirty = FALSE;
         }
         if (r300->hiz_clear.dirty) {
+            fprintf(stderr, "KUL-AKVA2\n");
             r300_emit_hiz_clear(r300, r300->hiz_clear.size,
                                 r300->hiz_clear.state);
             r300->hiz_clear.dirty = FALSE;
diff --git a/src/gallium/drivers/r300/r300_hyperz.c b/src/gallium/drivers/r300/r300_hyperz.c
index d86819afa7c..f1c75dac40b 100644
--- a/src/gallium/drivers/r300/r300_hyperz.c
+++ b/src/gallium/drivers/r300/r300_hyperz.c
@@ -134,6 +134,7 @@ static void r300_update_hyperz(struct r300_context* r300)
     struct pipe_framebuffer_state *fb =
         (struct pipe_framebuffer_state*)r300->fb_state.state;
     struct r300_dsa_state *dsa = r300->dsa_state.state;
+    /* Z and/or stencil buffer texture */
     struct r300_resource *zstex =
             fb->zsbuf ? r300_resource(fb->zsbuf->texture) : NULL;