diff --git a/repos/ports/ports/virtualbox5.hash b/repos/ports/ports/virtualbox5.hash
index 156ce2a0a..676deb147 100644
--- a/repos/ports/ports/virtualbox5.hash
+++ b/repos/ports/ports/virtualbox5.hash
@@ -1 +1 @@
-b133c6dd40d51e4cbd0d8906f3f7ff5a57f8a7bf
+04da35ec0708e54160bf4f045f82ce22b3be72a8
diff --git a/repos/ports/ports/virtualbox5.port b/repos/ports/ports/virtualbox5.port
index b789d31ee..8c510795d 100644
--- a/repos/ports/ports/virtualbox5.port
+++ b/repos/ports/ports/virtualbox5.port
@@ -1,17 +1,17 @@
 LICENSE         := GPLv2
-VERSION         := 5.1.34
+VERSION         := 5.1.38
 DOWNLOADS       := virtualbox.archive virtualbox_sdk.archive
 
 VIRTUALBOX_TBZ2    := VirtualBox-$(VERSION).tar.bz2
-VIRTUALBOX_SDK_ZIP := VirtualBoxSDK-$(VERSION)-121010.zip
+VIRTUALBOX_SDK_ZIP := VirtualBoxSDK-$(VERSION)-122592.zip
 
 URL(virtualbox) := http://download.virtualbox.org/virtualbox/$(VERSION)/$(VIRTUALBOX_TBZ2)
 DIR(virtualbox) := src/app/virtualbox
-SHA(virtualbox) := b8a16bcc4267cad9cb92c7211d4081267c890efad16e89949f7449b8ae32f28c
+SHA(virtualbox) := 96cab2296fb014ce0a16b7b9603b52208b9403c10c1524b44201d3c274e8a821
 
 URL(virtualbox_sdk) := http://download.virtualbox.org/virtualbox/$(VERSION)/$(VIRTUALBOX_SDK_ZIP)
 DIR(virtualbox_sdk) := src/app/virtualbox_sdk
-SHA(virtualbox_sdk) := d9058973bb420382a583384f53f4a600215e6f4b16bdf333ebe7d5c13a3026f8
+SHA(virtualbox_sdk) := 038c1d069ecf2886a2a7ca1ad5483bde4169b7bee39d77fbb16943a28ce64341
 
 PATCHES_DIR       := src/virtualbox5/patches
 PATCHES_DIR_VBOX4 := src/virtualbox/patches
@@ -96,7 +96,7 @@ VBOX_INC += VBoxVideo.h Hardware bioslogo.h scsi.h shflsvc.h VBoxGuest2.h vd.h
 VBOX_INC += vd-plugin.h vd-ifs.h vd-ifs-internal.h vd-image-backend.h
 VBOX_INC += vd-cache-backend.h vd-filter-backend.h msi.h asmdefs.mac err.mac
 VBOX_INC += VBoxVideoHost3D.h VBoxVideo3D.h settings.h VBoxAuth.h
-VBOX_INC += usb.h usbfilter.h vrdpusb.h
+VBOX_INC += usb.h usbfilter.h vrdpusb.h AssertGuest.h
 VBOX_INC += RemoteDesktop ExtPack/ExtPack.h
 
 VBOX_INC_COM := array.h assert.h AutoLock.h ErrorInfo.h EventQueue.h Guid.h
diff --git a/repos/ports/src/virtualbox5/frontend/fb.h b/repos/ports/src/virtualbox5/frontend/fb.h
index 01be1a613..81df159af 100644
--- a/repos/ports/src/virtualbox5/frontend/fb.h
+++ b/repos/ports/src/virtualbox5/frontend/fb.h
@@ -211,7 +211,7 @@ class Genodefb :
 			Assert(!"FixMe");
 			return E_NOTIMPL; }
 
-		STDMETHODIMP ProcessVHWACommand(BYTE *pCommand) override {
+		STDMETHODIMP ProcessVHWACommand(BYTE *, LONG, BOOL) override {
 			Assert(!"FixMe");
 		    return E_NOTIMPL; }
 
diff --git a/repos/ports/src/virtualbox5/patches/vbox_main.patch b/repos/ports/src/virtualbox5/patches/vbox_main.patch
index 3eba87fd7..f1566696a 100644
--- a/repos/ports/src/virtualbox5/patches/vbox_main.patch
+++ b/repos/ports/src/virtualbox5/patches/vbox_main.patch
@@ -977,7 +977,7 @@ index a717aff..3d52b9f 100644
 
 --- a/src/app/virtualbox/src/VBox/Main/src-client/DisplayImpl.cpp
 +++ b/src/app/virtualbox/src/VBox/Main/src-client/DisplayImpl.cpp
-@@ -956,7 +956,9 @@
+@@ -998,7 +998,9 @@
  
      /* Inform the VRDP server about the change of display parameters. */
      LogRelFlowFunc(("Calling VRDP\n"));
@@ -987,7 +987,18 @@ index a717aff..3d52b9f 100644
  
      /* And re-send the seamless rectangles if necessary. */
      if (mfSeamlessEnabled)
-@@ -1076,7 +1078,9 @@
+@@ -1121,8 +1123,10 @@
+                                      xOrigin, yOrigin, 0, 0);
+ 
+     /* Inform the VRDP server about the change of display parameters. */
++#if 0
+     LogRelFlowFunc(("Calling VRDP\n"));
+     mParent->i_consoleVRDPServer()->SendResize();
++#endif
+ 
+     /* And re-send the seamless rectangles if necessary. */
+     if (mfSeamlessEnabled)
+@@ -1353,7 +1357,9 @@
           * either in VideoAccelFlush or displayVBVAUpdateProcess.
           * Inform the server here only if VBVA is disabled.
           */
@@ -997,7 +1008,7 @@ index a717aff..3d52b9f 100644
      }
  }
  
-@@ -2452,8 +2456,10 @@
+@@ -2811,8 +2817,10 @@
          rc = VERR_INVALID_PARAMETER;
      }
  
@@ -1008,15 +1019,13 @@ index a717aff..3d52b9f 100644
  
      return rc;
  }
-@@ -3023,6 +3029,7 @@
+@@ -3442,11 +3450,13 @@
           * The server can now process redraw requests from clients or initial
           * fullscreen updates for new clients.
           */
 +#if 0
          for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++)
          {
-             DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
-@@ -3030,6 +3037,7 @@
              Assert(pDisplay->mParent && pDisplay->mParent->i_consoleVRDPServer());
              pDisplay->mParent->i_consoleVRDPServer()->SendUpdate(uScreenId, NULL, 0);
          }
@@ -1024,17 +1033,17 @@ index a717aff..3d52b9f 100644
      }
  
  #ifdef VBOX_WITH_VPX
-@@ -3830,7 +3838,9 @@
+@@ -4292,7 +4302,9 @@
+     pHdrUnconst->x -= (int16_t)pFBInfo->xOrigin;
      pHdrUnconst->y -= (int16_t)pFBInfo->yOrigin;
  
-     /** @todo new SendUpdate entry which can get a separate cmd header or coords. */
 +#if 0
      pThis->mParent->i_consoleVRDPServer()->SendUpdate(uScreenId, pHdrUnconst, (uint32_t)cbCmd);
 +#endif
  
      *pHdrUnconst = hdrSaved;
  }
-@@ -4031,7 +4041,9 @@
+@@ -4519,7 +4531,9 @@
          {
              /* VRDP server still need this notification. */
              LogRelFlowFunc(("Calling VRDP\n"));