4 files changed, 32 insertions, 0 deletions
diff --git a/xorg-server/hw/xnest/GCOps.c b/xorg-server/hw/xnest/GCOps.c
index e26a1363b..7b1956de0 100644
--- a/xorg-server/hw/xnest/GCOps.c
+++ b/xorg-server/hw/xnest/GCOps.c
@@ -94,15 +94,29 @@ xnestPutImage(DrawablePtr pDrawable, GCPtr pGC, int depth, int x, int y,
     }
 }
 
+static int
+xnestIgnoreErrorHandler (Display     *display,
+                         XErrorEvent *event)
+{
+    return False; /* return value is ignored */
+}
+
 void
 xnestGetImage(DrawablePtr pDrawable, int x, int y, int w, int h,
               unsigned int format, unsigned long planeMask, char *pImage)
 {
     XImage *ximage;
     int length;
+    int (*old_handler)(Display*, XErrorEvent*);
+
+    /* we may get BadMatch error when xnest window is minimized */
+    XSync(xnestDisplay, False);
+    old_handler = XSetErrorHandler (xnestIgnoreErrorHandler);
 
     ximage = XGetImage(xnestDisplay, xnestDrawable(pDrawable),
                        x, y, w, h, planeMask, format);
+    XSync(xnestDisplay, False);
+    XSetErrorHandler(old_handler);
 
     if (ximage) {
         length = ximage->bytes_per_line * ximage->height;
diff --git a/xorg-server/hw/xnest/Pixmap.c b/xorg-server/hw/xnest/Pixmap.c
index 13e1610fd..2902acd56 100644
--- a/xorg-server/hw/xnest/Pixmap.c
+++ b/xorg-server/hw/xnest/Pixmap.c
@@ -78,6 +78,21 @@ xnestDestroyPixmap(PixmapPtr pPixmap)
     return TRUE;
 }
 
+Bool
+xnestModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
+                        int bitsPerPixel, int devKind, pointer pPixData)
+{
+  if(!xnestPixmapPriv(pPixmap)->pixmap && width > 0 && height > 0) {
+    xnestPixmapPriv(pPixmap)->pixmap =
+        XCreatePixmap(xnestDisplay,
+                      xnestDefaultWindows[pPixmap->drawable.pScreen->myNum],
+                      width, height, depth);
+  }
+
+  return miModifyPixmapHeader(pPixmap, width, height, depth,
+                              bitsPerPixel, devKind, pPixData);
+}
+
 RegionPtr
 xnestPixmapToRegion(PixmapPtr pPixmap)
 {
diff --git a/xorg-server/hw/xnest/Screen.c b/xorg-server/hw/xnest/Screen.c
index 58b5a1199..abb4d372d 100644
--- a/xorg-server/hw/xnest/Screen.c
+++ b/xorg-server/hw/xnest/Screen.c
@@ -282,6 +282,7 @@ xnestOpenScreen(ScreenPtr pScreen, int argc, char *argv[])
 
     pScreen->CreatePixmap = xnestCreatePixmap;
     pScreen->DestroyPixmap = xnestDestroyPixmap;
+    pScreen->ModifyPixmapHeader = xnestModifyPixmapHeader;
 
     /* Font procedures */
 
diff --git a/xorg-server/hw/xnest/XNPixmap.h b/xorg-server/hw/xnest/XNPixmap.h
index 268ba1e8b..5b2e796fe 100644
--- a/xorg-server/hw/xnest/XNPixmap.h
+++ b/xorg-server/hw/xnest/XNPixmap.h
@@ -33,6 +33,8 @@ typedef struct {
 PixmapPtr xnestCreatePixmap(ScreenPtr pScreen, int width, int height,
                             int depth, unsigned usage_hint);
 Bool xnestDestroyPixmap(PixmapPtr pPixmap);
+Bool xnestModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
+                             int bitsPerPixel, int devKind, pointer pPixData);
 RegionPtr xnestPixmapToRegion(PixmapPtr pPixmap);
 
 #endif                          /* XNESTPIXMAP_H */