diff -Naru ac1/drivers/video/vesafb.c tmb1/drivers/video/vesafb.c
--- ac1/drivers/video/vesafb.c	2003-06-01 18:29:51.000000000 +0300
+++ tmb1/drivers/video/vesafb.c	2003-06-01 18:50:18.000000000 +0300
@@ -525,12 +525,18 @@
 	video_width         = screen_info.lfb_width;
 	video_height        = screen_info.lfb_height;
 	video_linelength    = screen_info.lfb_linelength;
-	video_size          = screen_info.lfb_width *	screen_info.lfb_height * video_bpp / 8;
+
+	/* remap memory according to videomode, multiply by 2 to get space for doublebuffering */
+	video_size          = screen_info.lfb_width *	screen_info.lfb_height * video_bpp / 8 * 2;
+
+	/* check that we don't remap more memory than old cards have */
+	if video_size > (screen_info.lfb_size * 65536)
+		video_size = screen_info.lfb_size * 65536;
 	
 	/* FIXME: Should we clip against declared size for banked devices ? */
 	
 	/* sets video_size according to vram boot option */
-	if (vram && vram * 1024 * 1024 > video_size)
+	if (vram && vram * 1024 * 1024 != video_size)
 		video_size = vram * 1024 * 1024;
 		
 	video_visual = (video_bpp == 8) ?