diff --git a/client/hostinfo_unix.cpp b/client/hostinfo_unix.cpp
index 00c0b28849..a19c8e952d 100644
--- a/client/hostinfo_unix.cpp
+++ b/client/hostinfo_unix.cpp
@@ -1832,45 +1832,6 @@ bool xss_idle(long idle_treshold) {
 
         idle_time = xssInfo->idle;
 
-#if HAVE_DPMS
-        int dummy;
-        CARD16 standby, suspend, off;
-        CARD16 state;
-        BOOL onoff;
-
-        if (DPMSQueryExtension(disp, &dummy, &dummy)) {
-            if (DPMSCapable(disp)) {
-                DPMSGetTimeouts(disp, &standby, &suspend, &off);
-                DPMSInfo(disp, &state, &onoff);
-
-                if (onoff) {
-                    switch (state) {
-                      case DPMSModeStandby:
-                          /* this check is a littlebit paranoid, but be sure */
-                          if (idle_time < (unsigned) (standby * 1000)) {
-                              idle_time += (standby * 1000);
-                          }
-                          break;
-                      case DPMSModeSuspend:
-                          if (idle_time < (unsigned) ((suspend + standby) * 1000)) {
-                              idle_time += ((suspend + standby) * 1000);
-                          }
-                          break;
-                      case DPMSModeOff:
-                          if (idle_time < (unsigned) ((off + suspend + standby) * 1000)) {
-                              idle_time += ((off + suspend + standby) * 1000);
-                          }
-                          break;
-                      case DPMSModeOn:
-                        default:
-                          break;
-                    }
-                }
-
-            } 
-        }
-#endif
-
         // convert from milliseconds to seconds
         idle_time = idle_time / 1000;