* If not use spin_lock,system will die if user load driver
         * and immediately unload driver frequently (dual)
         */
-       if (sm750_dev->dual)
+       if (sm750_dev->fb_count > 1)
                spin_lock(&sm750_dev->slock);
 
        sm750_dev->accel.de_fillrect(&sm750_dev->accel,
                                     region->dx, region->dy,
                                     region->width, region->height,
                                     color, rop);
-       if (sm750_dev->dual)
+       if (sm750_dev->fb_count > 1)
                spin_unlock(&sm750_dev->slock);
 }
 
         * If not use spin_lock, system will die if user load driver
         * and immediately unload driver frequently (dual)
         */
-       if (sm750_dev->dual)
+       if (sm750_dev->fb_count > 1)
                spin_lock(&sm750_dev->slock);
 
        sm750_dev->accel.de_copyarea(&sm750_dev->accel,
                                     base, pitch, Bpp, region->dx, region->dy,
                                     region->width, region->height,
                                     HW_ROP2_COPY);
-       if (sm750_dev->dual)
+       if (sm750_dev->fb_count > 1)
                spin_unlock(&sm750_dev->slock);
 }
 
         * If not use spin_lock, system will die if user load driver
         * and immediately unload driver frequently (dual)
         */
-       if (sm750_dev->dual)
+       if (sm750_dev->fb_count > 1)
                spin_lock(&sm750_dev->slock);
 
        sm750_dev->accel.de_imageblit(&sm750_dev->accel,
                                      image->dx, image->dy,
                                      image->width, image->height,
                                      fgcol, bgcol, HW_ROP2_COPY);
-       if (sm750_dev->dual)
+       if (sm750_dev->fb_count > 1)
                spin_unlock(&sm750_dev->slock);
 }
 
        output = &par->output;
        crtc = &par->crtc;
 
-       crtc->vidmem_size = (sm750_dev->dual) ? sm750_dev->vidmem_size >> 1 :
-                            sm750_dev->vidmem_size;
+       crtc->vidmem_size = sm750_dev->vidmem_size;
+       if (sm750_dev->fb_count > 1)
+               crtc->vidmem_size >>= 1;
+
        /* setup crtc and output member */
        sm750_dev->hwCursor = g_hwcursor;
 
 
 NO_PARAM:
        if (sm750_dev->revid != SM750LE_REVISION_ID) {
-               if (sm750_dev->dual) {
+               if (sm750_dev->fb_count > 1) {
                        if (swap)
                                sm750_dev->dataflow = sm750_dual_swap;
                        else
        sm750_dev->mtrr_off = g_nomtrr;
        sm750_dev->mtrr.vram = 0;
        sm750_dev->accel_off = g_noaccel;
-       sm750_dev->dual = g_dualview;
        spin_lock_init(&sm750_dev->slock);
 
        if (!sm750_dev->accel_off) {
 
        /* no dual view by far */
        fbidx++;
-       if (sm750_dev->dual && fbidx < 2)
+       sm750_dev->fb_count++;
+       if (g_dualview && fbidx < 2)
                goto ALLOC_FB;
 
        return 0;