DisplayManagerService: disable display blanking on suspend

A workaround for black screen that SurfaceFlinger never recovers from.
The kernel does this anyway.

Re-worked from the original kitkat-x86 patch of Kyle Evans.

diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index 09dc477..457d815 100644 (file)
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -330,7 +330,7 @@ public final class DisplayManagerService extends SystemService {
                 synchronized (mSyncRoot) {
                     if (mGlobalDisplayState != state) {
                         mGlobalDisplayState = state;
-                        updateGlobalDisplayStateLocked(mTempDisplayStateWorkQueue);
+//                      updateGlobalDisplayStateLocked(mTempDisplayStateWorkQueue);
                         scheduleTraversalLocked(false);
                     }
                 }