Made sure several machine types call video_reset() before initializing their internal video, fixes #1423.

src/machine/m_amstrad.c

@@ -2441,6 +2441,8 @@ machine_amstrad_init(const machine_t *model, int type)
 
     ams->language = 7;
 
+    video_reset(gfxcard);
+
     if (gfxcard == VID_INTERNAL) switch(type) {
 	case AMS_PC1512:
 		loadfont("roms/machines/pc1512/40078", 8);

src/machine/m_at_compaq.c

@@ -823,6 +823,8 @@ machine_at_compaq_init(const machine_t *model, int type)
                     write_ram, write_ramw, write_raml,
                     0xa0000+ram, MEM_MAPPING_INTERNAL, NULL);
 
+    video_reset(gfxcard);
+
     switch(type) {
 	case COMPAQ_PORTABLEII:
 		break;

src/machine/m_pcjr.c

@@ -824,6 +824,7 @@ machine_pcjr_init(const machine_t *model)
     cpu_set();
 
     /* Initialize the video controller. */
+    video_reset(gfxcard);
     loadfont("roms/video/mda/mda.rom", 0);
     mem_mapping_add(&pcjr->mapping, 0xb8000, 0x08000,
 		    vid_read, NULL, NULL,

src/machine/m_tandy.c

@@ -1509,6 +1509,8 @@ machine_tandy1k_init(const machine_t *model, int type)
     if (fdc_type == FDC_INTERNAL)	
 	device_add(&fdc_xt_tandy_device);
 
+    video_reset(gfxcard);
+
     switch(type) {
 	case TYPE_TANDY:
 		keyboard_set_table(scancode_tandy);

src/machine/m_xt_olivetti.c

@@ -742,6 +742,7 @@ int
 machine_xt_m24_init(const machine_t *model)
 {
     int ret;
+    m24_kbd_t *m24_kbd;
 
     ret = bios_load_interleaved("roms/machines/m24/olivetti_m24_version_1.43_low.bin",
 				"roms/machines/m24/olivetti_m24_version_1.43_high.bin",
@@ -750,11 +751,6 @@ machine_xt_m24_init(const machine_t *model)
     if (bios_only || !ret)
 	return ret;
 
-    if (gfxcard == VID_INTERNAL)
-    	device_add(&ogc_m24_device);
-
-    m24_kbd_t *m24_kbd;
-
     m24_kbd = (m24_kbd_t *) malloc(sizeof(m24_kbd_t));
     memset(m24_kbd, 0x00, sizeof(m24_kbd_t));
 
@@ -777,6 +773,11 @@ machine_xt_m24_init(const machine_t *model)
 
     nmi_init();
 
+    video_reset(gfxcard);
+
+    if (gfxcard == VID_INTERNAL)
+    	device_add(&ogc_m24_device);
+
     return ret;
 }
 
@@ -858,6 +859,11 @@ machine_xt_m19_init(const machine_t *model)
 
     nmi_init();
 
+    video_reset(gfxcard);
+
+    if (gfxcard == VID_INTERNAL)
+    	device_add(&ogc_m24_device);
+
     return ret;
 
 }