diff --git a/src/develop/pixelpipe_hb.c b/src/develop/pixelpipe_hb.c
index 0a588b2958d8..f2c4d178198b 100644
--- a/src/develop/pixelpipe_hb.c
+++ b/src/develop/pixelpipe_hb.c
@@ -1436,7 +1436,8 @@ static gboolean _dev_pixelpipe_process_rec(
   module->modify_roi_in(module, piece, roi_out, &roi_in);
   if((darktable.unmuted & DT_DEBUG_PIPE) && memcmp(roi_out, &roi_in, sizeof(dt_iop_roi_t)))
     dt_print_pipe(DT_DEBUG_PIPE,
-                  "modify roi IN", piece->pipe, module, DT_DEVICE_NONE, &roi_in, roi_out, "\n");
+                  "modify roi IN", piece->pipe, module, DT_DEVICE_NONE, &roi_in, roi_out, "ID=%i\n",
+                  pipe->image.id);
   // recurse to get actual data of input buffer
 
   dt_iop_buffer_dsc_t _input_format = { 0 };
@@ -2606,12 +2607,12 @@ gboolean dt_dev_pixelpipe_process(
 
 #ifdef HAVE_OPENCL
   if(pipe->devid > DT_DEVICE_CPU)
-    dt_print_pipe(DT_DEBUG_PIPE, "pipe starting", pipe, NULL, pipe->devid, &roi, &roi, "ID %i, %s\n",
+    dt_print_pipe(DT_DEBUG_PIPE, "pipe starting", pipe, NULL, pipe->devid, &roi, &roi, "ID=%i, %s\n",
       pipe->image.id,
       darktable.opencl->dev[pipe->devid].cname);
   else
 #endif
-    dt_print_pipe(DT_DEBUG_PIPE, "pipe starting", pipe, NULL, pipe->devid, &roi, &roi, "ID %i\n",
+    dt_print_pipe(DT_DEBUG_PIPE, "pipe starting", pipe, NULL, pipe->devid, &roi, &roi, "ID=%i\n",
       pipe->image.id);
 
   // run pixelpipe recursively and get error status
@@ -2667,7 +2668,8 @@ gboolean dt_dev_pixelpipe_process(
     dt_dev_pixelpipe_change(pipe, dev);
 
     dt_print_pipe(DT_DEBUG_PIPE | DT_DEBUG_OPENCL,
-      "pipe restarting on CPU", pipe, NULL, old_devid, &roi, &roi, "\n");
+      "pipe restarting on CPU", pipe, NULL, old_devid, &roi, &roi, "ID=%i\n",
+      pipe->image.id);
 
     goto restart; // try again (this time without opencl)
   }
@@ -2725,7 +2727,8 @@ gboolean dt_dev_pixelpipe_process(
   if(!claimed)
     dt_dev_pixelpipe_cache_report(pipe);
 
-  dt_print_pipe(DT_DEBUG_PIPE, "pipe finished", pipe, NULL, old_devid, &roi, &roi, "\n\n");
+  dt_print_pipe(DT_DEBUG_PIPE, "pipe finished", pipe, NULL, old_devid, &roi, &roi, "ID=%i\n\n",
+    pipe->image.id);
 
   pipe->processing = FALSE;
   return FALSE;
@@ -2756,7 +2759,8 @@ void dt_dev_pixelpipe_get_dimensions(dt_dev_pixelpipe_t *pipe,
       module->modify_roi_out(module, piece, &roi_out, &roi_in);
       if((darktable.unmuted & DT_DEBUG_PIPE) && memcmp(&roi_out, &roi_in, sizeof(dt_iop_roi_t)))
       dt_print_pipe(DT_DEBUG_PIPE,
-                  "modify roi OUT", piece->pipe, module, DT_DEVICE_NONE, &roi_in, &roi_out, "\n");
+                  "modify roi OUT", piece->pipe, module, DT_DEVICE_NONE, &roi_in, &roi_out, "ID=%i\n",
+                  pipe->image.id);
     }
     else
     {
diff --git a/src/iop/channelmixerrgb.c b/src/iop/channelmixerrgb.c
index e7a3dda77332..dd4b5eee31a6 100644
--- a/src/iop/channelmixerrgb.c
+++ b/src/iop/channelmixerrgb.c
@@ -2031,7 +2031,7 @@ static void _set_trouble_messages(struct dt_iop_module_t *self)
 
     dt_print_pipe(DT_DEBUG_ALWAYS, anyproblem ? "chroma trouble" : "chroma data",
       NULL, self, DT_DEVICE_NONE, NULL, NULL,
-      "%s (%i) %s%s%s%sD65=%s.  NOW %.3f %.3f %.3f, D65 %.3f %.3f %.3f, AS-SHOT %.3f %.3f %.3f\n",
+      "%s ID=%i %s%s%s%sD65=%s.  NOW %.3f %.3f %.3f, D65 %.3f %.3f %.3f, AS-SHOT %.3f %.3f %.3f\n",
       img->filename,
       img->id,
       anyproblem ? "" : "NO problem, ",