for (i = 0; i < 2; i++) {
                if (!(crtc_mask & (1 << i)))
                        continue;
-               nv_wait(fb, 0x600808 + (i * 0x2000), 0x00010000, 0x00000000);
-               nv_wait(fb, 0x600808 + (i * 0x2000), 0x00010000, 0x00010000);
+
+               nvkm_msec(device, 2000,
+                       u32 tmp = nvkm_rd32(device, 0x600808 + (i * 0x2000));
+                       if (!(tmp & 0x00010000))
+                               break;
+               );
+
+               nvkm_msec(device, 2000,
+                       u32 tmp = nvkm_rd32(device, 0x600808 + (i * 0x2000));
+                       if ( (tmp & 0x00010000))
+                               break;
+               );
+
                nvkm_wr08(device, 0x0c03c4 + (i * 0x2000), 0x01);
                nvkm_wr08(device, 0x0c03c5 + (i * 0x2000), sr1[i] | 0x20);
        }
        for (i = 0; i < 2; i++) {
                if (!(crtc_mask & (1 << i)))
                        continue;
-               nv_wait(fb, 0x600808 + (i * 0x2000), 0x00010000, 0x00010000);
+
+               nvkm_msec(device, 2000,
+                       u32 tmp = nvkm_rd32(device, 0x600808 + (i * 0x2000));
+                       if ( (tmp & 0x00010000))
+                               break;
+               );
+
                nvkm_wr08(device, 0x0c03c4 + (i * 0x2000), 0x01);
                nvkm_wr08(device, 0x0c03c5 + (i * 0x2000), sr1[i]);
        }