diff --git a/include/ui/PixelFormat.h b/include/ui/PixelFormat.h
index fc260c4..9f3e267 100644
--- a/include/ui/PixelFormat.h
+++ b/include/ui/PixelFormat.h
@@ -64,9 +64,6 @@
     PIXEL_FORMAT_RGBA_5551   = HAL_PIXEL_FORMAT_RGBA_5551,  // 16-bit ARGB
     PIXEL_FORMAT_RGBA_4444   = HAL_PIXEL_FORMAT_RGBA_4444,  // 16-bit ARGB
     PIXEL_FORMAT_A_8         = 8,                           // 8-bit A
-
-    // New formats can be added if they're also defined in
-    // pixelflinger/format.h
 };
 
 typedef int32_t PixelFormat;
@@ -80,10 +77,12 @@
     };
 
     enum { // components
-        ALPHA               = 1,
-        RGB                 = 2,
-        RGBA                = 3,
-        OTHER               = 0xFF
+        ALPHA   = 1,
+        RGB     = 2,
+        RGBA    = 3,
+        L       = 4,
+        LA      = 5,
+        OTHER   = 0xFF
     };
 
     struct szinfo {
diff --git a/libs/ui/PixelFormat.cpp b/libs/ui/PixelFormat.cpp
index 6993dac..fc1d3c2 100644
--- a/libs/ui/PixelFormat.cpp
+++ b/libs/ui/PixelFormat.cpp
@@ -48,7 +48,10 @@
         { 4, 32, {32,24,  24,16,  16, 8,   8, 0 }, PixelFormatInfo::RGBA },
         { 2, 16, { 1, 0,  16,11,  11, 6,   6, 1 }, PixelFormatInfo::RGBA },
         { 2, 16, { 4, 0,  16,12,  12, 8,   8, 4 }, PixelFormatInfo::RGBA },
-        { 1,  8, { 8, 0,   0, 0,   0, 0,   0, 0 }, PixelFormatInfo::ALPHA}
+        { 1,  8, { 8, 0,   0, 0,   0, 0,   0, 0 }, PixelFormatInfo::ALPHA},
+        { 1,  8, { 0, 0,   8, 0,   8, 0,   8, 0 }, PixelFormatInfo::L    },
+        { 2, 16, {16, 8,   8, 0,   8, 0,   8, 0 }, PixelFormatInfo::LA   },
+        { 1,  8, { 0, 0,   8, 5,   5, 2,   2, 0 }, PixelFormatInfo::RGB  },
 };
 
 static const Info* gGetPixelFormatTable(size_t* numEntries) {
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 4ee6953..efcdd87 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -160,7 +160,10 @@
     // this surfaces pixel format
     PixelFormatInfo info;
     status_t err = getPixelFormatInfo(format, &info);
-    if (err) return err;
+    if (err) {
+        ALOGE("unsupported pixelformat %d", format);
+        return err;
+    }
 
     // the display's pixel format
     const DisplayHardware& hw(graphicPlane(0).displayHardware());
@@ -170,6 +173,7 @@
     // never allow a surface larger than what our underlying GL implementation
     // can handle.
     if ((uint32_t(w)>maxSurfaceDims) || (uint32_t(h)>maxSurfaceDims)) {
+        ALOGE("dimensions too large %u x %u", uint32_t(w), uint32_t(h));
         return BAD_VALUE;
     }
 
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 9d821dc..05b5bf5 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1285,7 +1285,7 @@
         return surfaceHandle;
     }
 
-    //ALOGD("createSurface for pid %d (%d x %d)", pid, w, h);
+    //ALOGD("createSurface for (%d x %d), name=%s", w, h, name.string());
     sp<Layer> normalLayer;
     switch (flags & eFXSurfaceMask) {
         case eFXSurfaceNormal: