--- xserver-xorg-video-intel-2.1.0.orig/src/i830_display.c
+++ xserver-xorg-video-intel-2.1.0/src/i830_display.c
@@ -507,6 +507,11 @@
 static void
 i830_crtc_dpms(xf86CrtcPtr crtc, int mode)
 {
+    if (mode == DPMSModeOff) {
+        // disable this function because it`s buggy
+        return;
+    }
+
     ScrnInfoPtr pScrn = crtc->scrn;
     I830Ptr pI830 = I830PTR(pScrn);
     I830CrtcPrivatePtr intel_crtc = crtc->driver_private;