diff -up pciutils-3.11.0/lib/names-parse.c.2 pciutils-3.11.0/lib/names-parse.c
--- pciutils-3.11.0/lib/names-parse.c.2	2024-02-18 01:43:33.000000000 +0100
+++ pciutils-3.11.0/lib/names-parse.c	2024-02-26 20:12:44.682745480 +0100
@@ -8,10 +8,13 @@
  *	SPDX-License-Identifier: GPL-2.0-or-later
  */
 
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <dirent.h>
+#include <libgen.h>
 
 #include "internal.h"
 #include "names.h"
@@ -84,7 +87,7 @@ static inline int id_white_p(int c)
 }
 
 
-static const char *id_parse_list(struct pci_access *a, pci_file f, int *lino)
+static const char *id_parse_list(struct pci_access *a, pci_file f, int *lino, int flags)
 {
   char line[MAX_LINE];
   char *p;
@@ -209,7 +212,7 @@ static const char *id_parse_list(struct
 	p++;
       if (!*p)
 	return parse_error;
-      if (pci_id_insert(a, cat, id1, id2, id3, id4, p, SRC_LOCAL))
+      if (pci_id_insert(a, cat, id1, id2, id3, id4, p, SRC_LOCAL) && flags)
 	return "Duplicate entry";
     }
   return NULL;
@@ -225,12 +228,13 @@ pci_load_name_list(struct pci_access *a)
   pci_free_name_list(a);
   a->id_load_attempted = 1;
   if (!(f = pci_open(a)))
-    return 0;
-  err = id_parse_list(a, f, &lino);
+    return pci_new_load_name_list(a);
+  err = id_parse_list(a, f, &lino, 0);
   PCI_ERROR(f, err);
   pci_close(f);
   if (err)
     a->error("%s at %s, line %d\n", err, a->id_file_name, lino);
+  pci_new_load_name_list(a);
   return 1;
 }
 
@@ -251,3 +255,49 @@ pci_set_name_list_path(struct pci_access
   a->id_file_name = name;
   a->free_id_name = to_be_freed;
 }
+int pci_new_load_name_list(struct pci_access *a)
+{
+  pci_file f;
+  int lino, tempsize;
+  const char *err;
+  char *temp;
+  char new_id_path[PATH_MAX+1] = {0,};
+  DIR *pci_ids_dir;
+  struct dirent *dp;
+  
+  strncpy(new_id_path, a->id_file_name, PATH_MAX);
+  new_id_path[PATH_MAX] = 0;
+  strncat(new_id_path, ".d/", PATH_MAX - strnlen(new_id_path, PATH_MAX));
+  /* printf("new_id_path is %s\n", new_id_path); */
+  pci_ids_dir = opendir(new_id_path); 
+  if (pci_ids_dir == NULL)
+    return 0;
+
+  do
+    {
+     if ((dp = readdir(pci_ids_dir)) != NULL)
+       {
+          if (! strcmp(dp->d_name, "..") || ! strcmp(dp->d_name, "."))
+            continue;
+          if (strstr(dp->d_name, ".ids")) 
+            {
+             tempsize = strnlen(new_id_path, PATH_MAX) + dp->d_reclen + 1;
+             temp = malloc(tempsize);      /* This malloced memory is freed in the function pci_set_name_list_path() */ 
+             memset(temp, 0, tempsize);
+             strncpy(temp, new_id_path, (strnlen(new_id_path, PATH_MAX))+1);
+             strncat(temp, dp->d_name, PATH_MAX - strnlen(temp, PATH_MAX));
+             /* printf("Found file %s, processing it\n", temp); */
+             pci_set_name_list_path(a, temp, 1);
+             if (!(f = pci_open(a)))
+               continue;
+             err = id_parse_list(a, f, &lino, 0);
+             PCI_ERROR(f, err);
+             pci_close(f);
+             if (err)
+               a->error("%s at %s, line %d\n", err, a->id_file_name, lino);
+            }
+       }
+    }while (dp != NULL);
+  closedir(pci_ids_dir);
+  return 1;
+}   
diff -up pciutils-3.11.0/lib/pci.h.2 pciutils-3.11.0/lib/pci.h
--- pciutils-3.11.0/lib/pci.h.2	2024-02-23 14:56:07.000000000 +0100
+++ pciutils-3.11.0/lib/pci.h	2024-02-26 20:09:44.908200417 +0100
@@ -292,6 +292,7 @@ int pci_load_name_list(struct pci_access
 void pci_free_name_list(struct pci_access *a) PCI_ABI;	/* Called automatically by pci_cleanup() */
 void pci_set_name_list_path(struct pci_access *a, char *name, int to_be_freed) PCI_ABI;
 void pci_id_cache_flush(struct pci_access *a) PCI_ABI;
+int pci_new_load_name_list(struct pci_access *a);
 
 enum pci_lookup_mode {
   PCI_LOOKUP_VENDOR = 1,		/* Vendor name (args: vendorID) */