os2: updates from Andrey Vasilkin's 2020-09-07 sources.
diff --git a/src/video/os2/SDL_os2util.c b/src/video/os2/SDL_os2util.c
index d5429f5..87e7d0b 100644
--- a/src/video/os2/SDL_os2util.c
+++ b/src/video/os2/SDL_os2util.c
@@ -49,9 +49,9 @@
     return NULLHANDLE;
   }
 
-  // pulDst - last line of surface (image) part of the result bitmap's
+  // pulDst - last line of surface (image) part of the result bitmap
   pulDst = &pulBitmap[ (surface->h - 1) * surface->w ];
-  // pulDstMask - last line of mask part of the result bitmap's
+  // pulDstMask - last line of mask part of the result bitmap
   pulDstMask = &pulBitmap[ (2 * surface->h - 1) * surface->w ];
   // pulSrc - first line of source image
   pulSrc = (PULONG)surface->pixels;
diff --git a/src/video/os2/SDL_os2util.h b/src/video/os2/SDL_os2util.h
index 3806914..6b9fe5b 100644
--- a/src/video/os2/SDL_os2util.h
+++ b/src/video/os2/SDL_os2util.h
@@ -30,8 +30,6 @@
 #define INCL_GPI
 #include <os2.h>
 
-/*#define debug(s,...) SDL_LogDebug( SDL_LOG_CATEGORY_VIDEO, __func__"(): "##s, ##__VA_ARGS__ )*/
-
 HPOINTER utilCreatePointer(SDL_Surface *surface, ULONG ulHotX, ULONG ulHotY);
 
 #endif /* _SDL_os2util_h */
diff --git a/src/video/os2/SDL_os2video.c b/src/video/os2/SDL_os2video.c
index 902f792..cf9d6f2 100644
--- a/src/video/os2/SDL_os2video.c
+++ b/src/video/os2/SDL_os2video.c
@@ -1677,7 +1677,8 @@
 
 static void OS2_GetDisplayModes(_THIS, SDL_VideoDisplay *display)
 {
-  debug( "Enter" );
+//  debug( "Enter" );
+  SDL_AddDisplayMode( display, &display->current_mode );
 }
 
 static int OS2_SetDisplayMode(_THIS, SDL_VideoDisplay *display,