Increase delay to perform the configuration to 1 sec.

ui/display/manager/chromeos/display_configurator.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_DISPLAY_MANAGER_CHROMEOS_DISPLAY_CONFIGURATOR_H_
 #define UI_DISPLAY_MANAGER_CHROMEOS_DISPLAY_CONFIGURATOR_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 135 matching lines @@
   // partially appear on top of inactive display. Higher numbers guard
   // against larger cursors, but also waste more memory.
   // For simplicity, this is hard-coded to avoid the complexity of always
   // determining the DPI of the screen and rationalizing which screen we
   // need to use for the DPI calculation.
   // See crbug.com/130188 for initial discussion.
   static const int kVerticalGap = 60;
 
   // The delay to perform configuration after RRNotify. See the comment for
   // |configure_timer_|.
-  static const int kConfigureDelayMs = 500;
+  static const int kConfigureDelayMs = 1000;
 
   // The delay to perform configuration after waking up from suspend when in
   // multi display mode. Should be bigger than |kConfigureDelayMs|. Generally
   // big enough for external displays to be detected and added.
   // crbug.com/614624.
   static const int kResumeConfigureMultiDisplayDelayMs = 2000;
 
   // Returns the mode within |display| that matches the given size with highest
   // refresh rate. Returns None if no matching display was found.
   static const DisplayMode* FindDisplayModeMatchingSize(
@@ skipping 308 matching lines @@
 
   // This must be the last variable.
   base::WeakPtrFactory<DisplayConfigurator> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayConfigurator);
 };
 
 }  // namespace display
 
 #endif  // UI_DISPLAY_MANAGER_CHROMEOS_DISPLAY_CONFIGURATOR_H_