diff --git a/hw/xwin/InitOutput.c b/hw/xwin/InitOutput.c
index d2d0d1e43..9e296b2e3 100644
--- a/hw/xwin/InitOutput.c
+++ b/hw/xwin/InitOutput.c
@@ -529,9 +529,6 @@ OsVendorInit(void)
 
     winFixupPaths();
 
-    if (!OsVendorVErrorFProc)
-        OsVendorVErrorFProc = OsVendorVErrorF;
-
     if (!g_fLogInited) {
         /* keep this order. If LogInit fails it calls Abort which then calls
          * ddxGiveUp where LogInit is called again and creates an infinite
diff --git a/hw/xwin/win.h b/hw/xwin/win.h
index 8ca484b80..a01c5b6f1 100644
--- a/hw/xwin/win.h
+++ b/hw/xwin/win.h
@@ -739,10 +739,6 @@ void
  * winerror.c
  */
 
-void
-OsVendorVErrorF(const char *pszFormat, va_list va_args)
-_X_ATTRIBUTE_PRINTF(1, 0);
-
 void
 winMessageBoxF(const char *pszError, UINT uType, ...)
 _X_ATTRIBUTE_PRINTF(1, 3);
diff --git a/hw/xwin/winerror.c b/hw/xwin/winerror.c
index 174c76f5d..bbf302b67 100644
--- a/hw/xwin/winerror.c
+++ b/hw/xwin/winerror.c
@@ -40,23 +40,6 @@
 
 #include "dix/input_priv.h"
 
-void
-OsVendorVErrorF(const char *pszFormat, va_list va_args)
-{
-    /* make sure the clipboard and multiwindow threads do not interfere the
-     * main thread */
-    static pthread_mutex_t s_pmPrinting = PTHREAD_MUTEX_INITIALIZER;
-
-    /* Lock the printing mutex */
-    pthread_mutex_lock(&s_pmPrinting);
-
-    /* Print the error message to a log file, could be stderr */
-    LogVMessageVerb(X_NONE, 0, pszFormat, va_args);
-
-    /* Unlock the printing mutex */
-    pthread_mutex_unlock(&s_pmPrinting);
-}
-
 /*
  * os/log.c:FatalError () calls our vendor ErrorF, so the message
  * from a FatalError will be logged.
diff --git a/hw/xwin/winprocarg.c b/hw/xwin/winprocarg.c
index e88dca235..500023e15 100644
--- a/hw/xwin/winprocarg.c
+++ b/hw/xwin/winprocarg.c
@@ -226,12 +226,6 @@ ddxProcessArgument(int argc, char *argv[], int i)
 
     /* Initialize once */
     if (!s_fBeenHere) {
-        /*
-         * This initialises our hook into VErrorF () for catching log messages
-         * that are generated before OsInit () is called.
-         */
-        OsVendorVErrorFProc = OsVendorVErrorF;
-
         s_fBeenHere = TRUE;
 
         /* Initialize only if option is not -help */
diff --git a/os/log.c b/os/log.c
index e6a66a5bc..88be9f82a 100644
--- a/os/log.c
+++ b/os/log.c
@@ -110,8 +110,6 @@ OR PERFORMANCE OF THIS SOFTWARE.
 #pragma clang diagnostic ignored "-Wformat-nonliteral"
 #endif
 
-void (*OsVendorVErrorFProc) (const char *, va_list args) = NULL;
-
 /* Default logging parameters. */
 #define DEFAULT_LOG_VERBOSITY		0
 #define DEFAULT_LOG_FILE_VERBOSITY	3
@@ -899,10 +897,7 @@ FatalError(const char *f, ...)
 void
 VErrorF(const char *f, va_list args)
 {
-    if (OsVendorVErrorFProc)
-        OsVendorVErrorFProc(f, args);
-    else
-        LogVMessageVerb(X_NONE, -1, f, args);
+    LogVMessageVerb(X_NONE, -1, f, args);
 }
 
 void
diff --git a/os/osdep.h b/os/osdep.h
index 6521b8a2a..90e5e84d9 100644
--- a/os/osdep.h
+++ b/os/osdep.h
@@ -172,10 +172,6 @@ int os_move_fd(int fd);
    depending on whether multithreading is used */
 int xthread_sigmask(int how, const sigset_t *set, sigset_t *oldest);
 
-/* callback for DDX specific error printing, if any (may be NULL) */
-extern void (*OsVendorVErrorFProc) (const char *, va_list args)
-    _X_ATTRIBUTE_PRINTF(1, 0);
-
 typedef void (*OsSigHandlerPtr) (int sig);
 
 /* install signal handler */