[PATCH] savagefb: Fix black screen on load in Savage IX

[powerpc.git] / drivers / video / savage / savagefb_driver.c

diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c
index 4afa305..d952bf3 100644 (file)
--- a/drivers/video/savage/savagefb_driver.c
+++ b/drivers/video/savage/savagefb_driver.c
@@ -384,6 +384,19 @@ SavageSetup2DEngine(struct savagefb_par  *par)
        BCI_SEND(0);
        BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
        BCI_SEND(GlobalBitmapDescriptor);
+
+       /*
+        * I don't know why, sending this twice fixes the intial black screen,
+        * prevents X from crashing at least in Toshiba laptops with SavageIX.
+        * --Tony
+        */
+       par->bci_ptr = 0;
+       par->SavageWaitFifo(par, 4);
+
+       BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
+       BCI_SEND(0);
+       BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
+       BCI_SEND(GlobalBitmapDescriptor);
 }
 
 static void savagefb_set_clip(struct fb_info *info)