diff --git a/bochs/.bochsrc b/bochs/.bochsrc
index 11b8c9797..11db35ccd 100644
--- a/bochs/.bochsrc
+++ b/bochs/.bochsrc
@@ -426,10 +426,15 @@ vgaromimage: file=$BXSHARE/VGABIOS-lgpl-latest
 #     to 0 and "clock: sync=none" may improve the responsiveness of the guest
 #     GUI when the guest is otherwise idle.
 #
+#   DDC
+#     This parameter defines the behaviour of the DDC emulation that returns
+#     the monitor EDID data. The default value is 'builtin' (use valus for
+#     'Bochs Screen'). Other choices are 'off' (feature disabled) and 'file'
+#     (read monitor EDID from file, name separated with a colon).
 # Examples:
-#   vga: extension=cirrus, update_freq=10
+#   vga: extension=cirrus, update_freq=10, ddc=builtin
 #=======================================================================
-#vga: extension=vbe, update_freq=5, realtime=1
+#vga: extension=vbe, update_freq=5, realtime=1, ddc=file:monitor.bin
 
 #=======================================================================
 # VOODOO:
diff --git a/bochs/CHANGES b/bochs/CHANGES
index 2aa208589..30a7bb14f 100644
--- a/bochs/CHANGES
+++ b/bochs/CHANGES
@@ -15,6 +15,8 @@ Changes after 2.6.11:
     per model are supported. Use the zero-based "card" parameter to specify device.
   - VGA: Removed lfb_enabled switch from Bochs VBE code. Now banked and LFB writes
     to VRAM are always valid. Fixes GRUB bootloader menu when using Bochs VBE.
+  - VGA DDC: Added "ddc" parameter to the "vga" option to make it possible
+    either to disable the DDC feature or to read the monitor EDID from file.
 
 -------------------------------------------------------------------------
 Changes in 2.6.11 (January 5, 2020):
diff --git a/bochs/config.cc b/bochs/config.cc
index e7a092bca..7b3583341 100644
--- a/bochs/config.cc
+++ b/bochs/config.cc
@@ -995,6 +995,28 @@ void bx_init_options()
   vga_extension->set_initial_val("vbe");
   display->set_options(display->SHOW_PARENT);
 
+  static const char *ddc_mode_list[] = {
+    "off",
+    "builtin",
+    "file",
+    NULL
+  };
+  bx_param_enum_c *ddc_mode = new bx_param_enum_c(display,
+    "ddc_mode", "DDC emulatiion mode",
+    "Select DDC emulation mode",
+    ddc_mode_list,
+    BX_DDC_MODE_BUILTIN,
+    BX_DDC_MODE_OFF);
+  path = new bx_param_filename_c(display,
+      "ddc_file",
+      "DDC definition file",
+      "Set path to a DDC definition file",
+      "", BX_PATHNAME_LEN);
+  deplist = new bx_list_c(NULL);
+  deplist->add(path);
+  ddc_mode->set_dependent_list(deplist, 0);
+  ddc_mode->set_dependent_bitmap(BX_DDC_MODE_FILE, 1);
+
   // keyboard & mouse subtree
   bx_list_c *kbd_mouse = new bx_list_c(root_param, "keyboard_mouse", "Keyboard & Mouse Options");
   bx_list_c *keyboard = new bx_list_c(kbd_mouse, "keyboard", "Keyboard Options");
@@ -2745,6 +2767,14 @@ static int parse_line_formatted(const char *context, int num_params, char *param
         SIM->get_param_num(BXPN_VGA_UPDATE_FREQUENCY)->set(atol(&params[i][12]));
       } else if (!strncmp(params[i], "realtime=", 9)) {
         SIM->get_param_bool(BXPN_VGA_REALTIME)->set(atol(&params[i][9]));
+      } else if (!strncmp(params[i], "ddc=", 4)) {
+        const char *strval = &params[i][4];
+        if (strncmp(strval, "file:", 5)) {
+          SIM->get_param_enum(BXPN_DDC_MODE)->set_by_name(strval);
+        } else {
+          SIM->get_param_enum(BXPN_DDC_MODE)->set(BX_DDC_MODE_FILE);
+          SIM->get_param_string(BXPN_DDC_FILE)->set(strval+5);
+        }
       } else {
         PARSE_ERR(("%s: vga directive malformed.", context));
       }
@@ -3384,10 +3414,15 @@ int bx_write_configuration(const char *rc, int overwrite)
     }
   }
   fprintf(fp, "\n");
-  fprintf(fp, "vga: extension=%s, update_freq=%u, realtime=%u\n",
+  fprintf(fp, "vga: extension=%s, update_freq=%u, realtime=%u, ddc=%s",
     SIM->get_param_string(BXPN_VGA_EXTENSION)->getptr(),
     SIM->get_param_num(BXPN_VGA_UPDATE_FREQUENCY)->get(),
-    SIM->get_param_bool(BXPN_VGA_REALTIME)->get());
+    SIM->get_param_bool(BXPN_VGA_REALTIME)->get(),
+    SIM->get_param_enum(BXPN_DDC_MODE)->get_selected());
+  if (SIM->get_param_enum(BXPN_DDC_MODE)->get() == BX_DDC_MODE_FILE) {
+    fprintf(fp, ":%s", SIM->get_param_string(BXPN_DDC_FILE)->getptr());
+  }
+  fprintf(fp, "\n");
 #if BX_SUPPORT_SMP
   fprintf(fp, "cpu: count=%u:%u:%u, ips=%u, quantum=%d, ",
     SIM->get_param_num(BXPN_CPU_NPROCESSORS)->get(), SIM->get_param_num(BXPN_CPU_NCORES)->get(),
diff --git a/bochs/gui/siminterface.h b/bochs/gui/siminterface.h
index d4f15e006..c9523b41b 100644
--- a/bochs/gui/siminterface.h
+++ b/bochs/gui/siminterface.h
@@ -2,7 +2,7 @@
 // $Id$
 /////////////////////////////////////////////////////////////////////////
 //
-//  Copyright (C) 2001-2018  The Bochs Project
+//  Copyright (C) 2001-2020  The Bochs Project
 //
 //  This library is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU Lesser General Public
@@ -485,6 +485,12 @@ enum {
   BX_RUN_START
 };
 
+enum {
+  BX_DDC_MODE_OFF,
+  BX_DDC_MODE_BUILTIN,
+  BX_DDC_MODE_FILE
+};
+
 enum {
   BX_MOUSE_TYPE_NONE,
   BX_MOUSE_TYPE_PS2,
diff --git a/bochs/iodev/display/ddc.cc b/bochs/iodev/display/ddc.cc
index f1739115e..f4bb8e3e3 100644
--- a/bochs/iodev/display/ddc.cc
+++ b/bochs/iodev/display/ddc.cc
@@ -2,7 +2,7 @@
 // $Id$
 /////////////////////////////////////////////////////////////////////////
 //
-//  Copyright (C) 2018  The Bochs Project
+//  Copyright (C) 2018-2020  The Bochs Project
 //
 //  This library is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU Lesser General Public
@@ -18,8 +18,7 @@
 //  License along with this library; if not, write to the Free Software
 //  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 
-// DDC stub (when ready, this code should return the VESA EDID for the
-// Bochs plug&play monitor)
+// DDC support (returns the VESA EDID for the Bochs plug&play monitor)
 
 // Define BX_PLUGGABLE in files that can be compiled into plugins.  For
 // platforms that require a special tag on exported symbols, BX_PLUGGABLE
@@ -28,6 +27,7 @@
 
 #include "bochs.h"
 #include "ddc.h"
+#include "param_names.h"
 
 #define LOG_THIS
 
@@ -153,6 +153,10 @@ const Bit8u vesa_EDID[128] = {
 
 bx_ddc_c::bx_ddc_c(void)
 {
+  int fd, ret;
+  struct stat stat_buf;
+  const char *path;
+
   put("DDC");
   s.DCKhost = 1;
   s.DDAhost = 1;
@@ -161,6 +165,33 @@ bx_ddc_c::bx_ddc_c(void)
   s.ddc_ack = 1;
   s.ddc_rw = 1;
   s.edid_index = 0;
+  s.ddc_mode = SIM->get_param_enum(BXPN_DDC_MODE)->get();
+  if (s.ddc_mode == BX_DDC_MODE_BUILTIN) {
+    memcpy(s.edid_data, vesa_EDID, 128);
+  } else if (s.ddc_mode == BX_DDC_MODE_FILE) {
+    path = SIM->get_param_string(BXPN_DDC_FILE)->getptr();
+    fd = open(path, O_RDONLY
+#ifdef O_BINARY
+       | O_BINARY
+#endif
+        );
+    if (fd < 0) {
+      BX_PANIC(("failed to open monitor EDID file '%s'", path));
+    }
+    ret = fstat(fd, &stat_buf);
+    if (ret) {
+      BX_PANIC(("could not fstat() monitor EDID file."));
+    }
+    if (stat_buf.st_size != 128) {
+      BX_PANIC(("monitor EDID file size must be 128 bytes"));
+    }
+    ret = ::read(fd, (bx_ptr_t) s.edid_data, (unsigned)stat_buf.st_size);
+    if (ret != stat_buf.st_size) {
+      BX_PANIC(("error reading monitor EDID file."));
+    }
+    close(fd);
+    BX_INFO(("Monitor EDID read from image file '%s'.", path));
+  }
 }
 
 bx_ddc_c::~bx_ddc_c(void)
@@ -179,6 +210,9 @@ void bx_ddc_c::write(bx_bool dck, bx_bool dda)
   bx_bool dck_change = 0;
   bx_bool dda_change = 0;
 
+  if (s.ddc_mode == BX_DDC_MODE_OFF)
+    return;
+
   if ((dck != s.DCKhost) || (dda != s.DDAhost)) {
     dck_change = (dck != s.DCKhost);
     dda_change = (dda != s.DDAhost);
@@ -283,7 +317,7 @@ void bx_ddc_c::write(bx_bool dck, bx_bool dda)
 
 Bit8u bx_ddc_c::get_edid_byte()
 {
-  Bit8u value = vesa_EDID[s.edid_index++];
+  Bit8u value = s.edid_data[s.edid_index++];
   BX_DEBUG(("Sending EDID byte %d (value = 0x%02x)", s.edid_index - 1, value));
   s.edid_index &= 0x7f;
   return value;
diff --git a/bochs/iodev/display/ddc.h b/bochs/iodev/display/ddc.h
index da0357669..7312a9f38 100644
--- a/bochs/iodev/display/ddc.h
+++ b/bochs/iodev/display/ddc.h
@@ -2,7 +2,7 @@
 // $Id$
 /////////////////////////////////////////////////////////////////////////
 //
-//  Copyright (C) 2018  The Bochs Project
+//  Copyright (C) 2018-2020  The Bochs Project
 //
 //  This library is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU Lesser General Public
@@ -35,6 +35,7 @@ private:
   Bit8u get_edid_byte(void);
 
   struct {
+    Bit8u   ddc_mode;
     bx_bool DCKhost;
     bx_bool DDAhost;
     bx_bool DDAmon;
@@ -44,6 +45,7 @@ private:
     bx_bool ddc_rw;
     Bit8u   ddc_byte;
     Bit8u   edid_index;
+    Bit8u   edid_data[128];
   } s;  // state information
 };
 
diff --git a/bochs/param_names.h b/bochs/param_names.h
index 82f7b7e3b..1a8d4e49a 100644
--- a/bochs/param_names.h
+++ b/bochs/param_names.h
@@ -107,6 +107,8 @@
 #define BXPN_VGA_EXTENSION               "display.vga_extension"
 #define BXPN_VGA_UPDATE_FREQUENCY        "display.vga_update_frequency"
 #define BXPN_VGA_REALTIME                "display.vga_realtime"
+#define BXPN_DDC_MODE                    "display.ddc_mode"
+#define BXPN_DDC_FILE                    "display.ddc_file"
 #define BXPN_VOODOO                      "display.voodoo"
 #define BXPN_KEYBOARD                    "keyboard_mouse.keyboard"
 #define BXPN_KBD_TYPE                    "keyboard_mouse.keyboard.type"