diff -uNr linux.orig/drivers/video/aty128fb.c linux/drivers/video/aty128fb.c
--- linux.orig/drivers/video/aty128fb.c	Sun Nov 11 18:09:37 2001
+++ linux/drivers/video/aty128fb.c	Mon Jan 21 11:56:05 2002
@@ -154,6 +154,7 @@
     {"Rage128 RL (AGP)", PCI_DEVICE_ID_ATI_RAGE128_RL, rage_128},
     {"Rage128 Pro PF (AGP)", PCI_DEVICE_ID_ATI_RAGE128_PF, rage_128_pro},
     {"Rage128 Pro PR (PCI)", PCI_DEVICE_ID_ATI_RAGE128_PR, rage_128_pro},
+    {"Rage128 Pro TR (AGP)", PCI_DEVICE_ID_ATI_RAGE128_TR, rage_128_pro},
     {"Rage Mobility M3 (PCI)", PCI_DEVICE_ID_ATI_RAGE128_LE, rage_M3},
     {"Rage Mobility M3 (AGP)", PCI_DEVICE_ID_ATI_RAGE128_LF, rage_M3},
     {NULL, 0, rage_128}
@@ -1645,6 +1646,7 @@
             unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
             if (vmode > 0 && vmode <= VMODE_MAX)
                 default_vmode = vmode;
+
         } else if (!strncmp(this_opt, "cmode:", 6)) {
             unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
             switch (cmode) {
@@ -1723,6 +1725,28 @@
         } else {
             if (default_vmode <= 0 || default_vmode > VMODE_MAX)
                 default_vmode = VMODE_1024_768_60;
+
+	    /* iMacs need that resolution
+	     * PowerMac2,1 first r128 iMacs
+	     * PowerMac2,2 summer 2000 iMacs
+	     * PowerMac4,1 januar 2001 iMacs "flower power"
+	     */
+	    if (machine_is_compatible("PowerMac2,1") ||
+		machine_is_compatible("PowerMac2,2") ||
+		machine_is_compatible("PowerMac4,1"))
+		default_vmode = VMODE_1024_768_75;
+
+	    /* PowerBook Firewire (Pismo) */
+	    if (machine_is_compatible("PowerBook3,1"))
+		default_vmode = VMODE_1024_768_60;
+
+	    /* PowerBook Titanium */
+	    if (machine_is_compatible("PowerBook3,2"))
+		default_vmode = VMODE_1152_768_60;
+
+	    /* iBook Firewire */
+	    if (machine_is_compatible("PowerBook2,2"))
+		default_vmode = VMODE_800_600_60;
 
             if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
                 default_cmode = CMODE_8;