diff -urN psplash.orig/psplash-fb.c psplash/psplash-fb.c
--- psplash.orig/psplash-fb.c	2007-08-29 20:27:49.000000000 +0200
+++ psplash/psplash-fb.c	2009-01-15 18:42:11.000000000 +0100
@@ -62,7 +62,8 @@
       goto fail;
     }
   
-  if (fb_var.bits_per_pixel < 16)
+  if (fb_var.bits_per_pixel != 1 && fb_var.bits_per_pixel != 2
+      && fb_var.bits_per_pixel < 16)
     {
       fprintf(stderr,
 	      "Error, no support currently for %i bpp frame buffers\n",
@@ -143,7 +144,18 @@
   return NULL;
 }
 
-#define OFFSET(fb,x,y) (((y) * (fb)->stride) + ((x) * ((fb)->bpp >> 3)))
+static inline int
+psplash_fb_offset(PSplashFB *fb, int x, int y)
+{
+  switch (fb->bpp)
+    {
+    /* pixel offset */
+    case 2: return (y * (fb->stride << 2)) + x;
+    case 1: return (y * (fb->stride << 3)) + x;
+    /* byte offset */
+    default: return (y * fb->stride) + (x * (fb->bpp >> 3));
+    }
+}
 
 inline void
 psplash_fb_plot_pixel (PSplashFB    *fb, 
@@ -153,7 +165,7 @@
 		       uint8        green,
 		       uint8        blue)
 {
-  int off;
+  int off, shift;
 
   if (x < 0 || x > fb->width-1 || y < 0 || y > fb->height-1)
     return;
@@ -161,17 +173,17 @@
   switch (fb->angle)
     {
     case 270:
-      off = OFFSET (fb, fb->height - y - 1, x);
+      off = psplash_fb_offset (fb, fb->height - y - 1, x);
       break;
     case 180:
-      off = OFFSET (fb, fb->width - x - 1, fb->height - y - 1);
+      off = psplash_fb_offset (fb, fb->width - x - 1, fb->height - y - 1);
       break;
     case 90:
-      off = OFFSET (fb, y, fb->width - x - 1);
+      off = psplash_fb_offset (fb, y, fb->width - x - 1);
       break;
     case 0:
     default:
-      off = OFFSET (fb, x, y);
+      off = psplash_fb_offset (fb, x, y);
       break;
     }
 
@@ -188,6 +200,18 @@
       *(volatile uint16 *) (fb->data + off) 
 	= ((red >> 3) << 11) | ((green >> 2) << 5) | (blue >> 3);
       break;
+    case 2:
+      shift = (3 - (off & 3)) << 1;
+      *(fb->data + (off >> 2)) = (*(fb->data + (off >> 2)) & ~(3 << shift))
+      | (((11*red + 16*green + 5*blue) >> 11) << shift);
+      break;
+    case 1:
+      shift = 7 - (off & 7);
+      if (((11*red + 16*green + 5*blue) >> 5) >= 128)
+        *(fb->data + (off >> 3)) |= (1 << shift);
+      else
+        *(fb->data + (off >> 3)) &= ~(1 << shift);
+      break;
     default:
       /* depth not supported yet */
       break;