diff --git a/hw/display/ati.c b/hw/display/ati.c
index c1d9d1518f..590362ea56 100644
--- a/hw/display/ati.c
+++ b/hw/display/ati.c
@@ -89,6 +89,7 @@ static void ati_vga_switch_mode(ATIVGAState *s)
             DPRINTF("Switching to %dx%d %d %d @ %x\n", h, v, stride, bpp, offs);
             vbe_ioport_write_index(&s->vga, 0, VBE_DISPI_INDEX_ENABLE);
             vbe_ioport_write_data(&s->vga, 0, VBE_DISPI_DISABLED);
+            s->vga.big_endian_fb = false;
             /* reset VBE regs then set up mode */
             s->vga.vbe_regs[VBE_DISPI_INDEX_XRES] = h;
             s->vga.vbe_regs[VBE_DISPI_INDEX_YRES] = v;
diff --git a/hw/display/ati_2d.c b/hw/display/ati_2d.c
index c31142af6e..b09753320a 100644
--- a/hw/display/ati_2d.c
+++ b/hw/display/ati_2d.c
@@ -124,15 +124,15 @@ void ati_2d_blt(ATIVGAState *s)
 
         switch (s->regs.dp_mix & GMC_ROP3_MASK) {
         case ROP3_PATCOPY:
-            filler = bswap32(s->regs.dp_brush_frgd_clr);
+            filler = s->regs.dp_brush_frgd_clr;
             break;
         case ROP3_BLACKNESS:
-            filler = rgb_to_pixel32(s->vga.palette[0], s->vga.palette[1],
-                                    s->vga.palette[2]) << 8 | 0xff;
+            filler = 0xffUL << 24 | rgb_to_pixel32(s->vga.palette[0],
+                     s->vga.palette[1], s->vga.palette[2]);
             break;
         case ROP3_WHITENESS:
-            filler = rgb_to_pixel32(s->vga.palette[3], s->vga.palette[4],
-                                    s->vga.palette[5]) << 8 | 0xff;
+            filler = 0xffUL << 24 | rgb_to_pixel32(s->vga.palette[3],
+                     s->vga.palette[4], s->vga.palette[5]);
             break;
         }