diff --git a/client/src/app/shared/components/list-view-table/list-view-table.component.html b/client/src/app/shared/components/list-view-table/list-view-table.component.html
index 5a5c67893..c1030a9e6 100644
--- a/client/src/app/shared/components/list-view-table/list-view-table.component.html
+++ b/client/src/app/shared/components/list-view-table/list-view-table.component.html
@@ -33,7 +33,7 @@
 
         <!-- Projector column -->
         <div *pblNgridCellDef="'projector'; row as viewModel" class="fill ngrid-lg">
-            <os-projector-button class="projector-button" [object]="getProjectable(viewModel)"></os-projector-button>
+            <os-projector-button class="projector-button" [object]="getProjectable(viewModel)" (changeEvent)="viewUpdateEvent()"></os-projector-button>
         </div>
 
         <!-- No Results -->
diff --git a/client/src/app/shared/components/list-view-table/list-view-table.component.ts b/client/src/app/shared/components/list-view-table/list-view-table.component.ts
index 8b0107ab1..430305fc8 100644
--- a/client/src/app/shared/components/list-view-table/list-view-table.component.ts
+++ b/client/src/app/shared/components/list-view-table/list-view-table.component.ts
@@ -394,6 +394,13 @@ export class ListViewTableComponent<V extends BaseViewModel, M extends BaseModel
         }
     }
 
+    /**
+     * Receive manual view updates
+     */
+    public viewUpdateEvent(): void {
+        this.cd.markForCheck();
+    }
+
     /**
      * Generic click handler for rows. Allow so (multi) select anywhere
      * @param event the clicked row
diff --git a/client/src/app/shared/components/projector-button/projector-button.component.html b/client/src/app/shared/components/projector-button/projector-button.component.html
index 4d6fe56b6..132fa5c81 100644
--- a/client/src/app/shared/components/projector-button/projector-button.component.html
+++ b/client/src/app/shared/components/projector-button/projector-button.component.html
@@ -1,16 +1,31 @@
 <ng-container *osPerms="'core.can_manage_projector'">
-    <button type="button" *ngIf="!text && !menuItem" mat-mini-fab (click)="onClick($event)"
-        [ngClass]="isProjected() ? 'projector-active' : 'projector-inactive'">
+    <button
+        type="button"
+        *ngIf="!text && !menuItem"
+        mat-mini-fab
+        (click)="onClick($event)"
+        [ngClass]="isProjected ? 'projector-active' : 'projector-inactive'"
+    >
         <mat-icon>videocam</mat-icon>
     </button>
-    <button type="button" *ngIf="text && !menuItem" mat-button (click)="onClick($event)"
-        [ngClass]="isProjected() ? 'projector-active' : 'projector-inactive'">
+    <button
+        type="button"
+        *ngIf="text && !menuItem"
+        mat-button
+        (click)="onClick($event)"
+        [ngClass]="isProjected ? 'projector-active' : 'projector-inactive'"
+    >
         <mat-icon>videocam</mat-icon>
         {{ text | translate }}
     </button>
-    <button type="button" *ngIf="menuItem" mat-menu-item (click)="onClick()"
-        [ngClass]="isProjected() ? 'projector-active' : 'projector-inactive'">
+    <button
+        type="button"
+        *ngIf="menuItem"
+        mat-menu-item
+        (click)="onClick()"
+        [ngClass]="isProjected ? 'projector-active' : 'projector-inactive'"
+    >
         <mat-icon>videocam</mat-icon>
-        {{ (text || 'Project') | translate }}
+        {{ text || 'Project' | translate }}
     </button>
 </ng-container>
diff --git a/client/src/app/shared/components/projector-button/projector-button.component.ts b/client/src/app/shared/components/projector-button/projector-button.component.ts
index 7291d8162..4a81beb25 100644
--- a/client/src/app/shared/components/projector-button/projector-button.component.ts
+++ b/client/src/app/shared/components/projector-button/projector-button.component.ts
@@ -1,6 +1,10 @@
-import { Component, Input, OnInit } from '@angular/core';
+import { Component, EventEmitter, Input, OnDestroy, OnInit, Output } from '@angular/core';
+
+import { Subscription } from 'rxjs';
+import { distinctUntilChanged } from 'rxjs/operators';
 
 import { ProjectorService } from 'app/core/core-services/projector.service';
+import { ProjectorRepositoryService } from 'app/core/repositories/projector/projector-repository.service';
 import { ProjectionDialogService } from 'app/core/ui-services/projection-dialog.service';
 import { Projector } from 'app/shared/models/core/projector';
 import {
@@ -23,7 +27,7 @@ import {
     templateUrl: './projector-button.component.html',
     styleUrls: ['./projector-button.component.scss']
 })
-export class ProjectorButtonComponent implements OnInit {
+export class ProjectorButtonComponent implements OnInit, OnDestroy {
     /**
      * The object to project.
      */
@@ -33,6 +37,8 @@ export class ProjectorButtonComponent implements OnInit {
         return this._object;
     }
 
+    public isProjected = false;
+
     @Input()
     public set object(obj: Projectable | ProjectorElementBuildDeskriptor) {
         if (isProjectable(obj) || isProjectorElementBuildDeskriptor(obj)) {
@@ -48,16 +54,22 @@ export class ProjectorButtonComponent implements OnInit {
     @Input()
     public menuItem = false;
 
+    @Output()
+    public changeEvent: EventEmitter<void> = new EventEmitter();
+
     /**
      * Pre-define projection target
      */
     @Input()
     public projector: Projector | null;
 
+    private projectorRepoSub: Subscription;
+
     /**
      * The constructor
      */
     public constructor(
+        private projectorRepo: ProjectorRepositoryService,
         private projectionDialogService: ProjectionDialogService,
         private projectorService: ProjectorService
     ) {}
@@ -65,7 +77,27 @@ export class ProjectorButtonComponent implements OnInit {
     /**
      * Initialization function
      */
-    public ngOnInit(): void {}
+    public ngOnInit(): void {
+        this.isProjected = this.checkIsProjected();
+
+        this.projectorRepoSub = this.projectorRepo
+            .getGeneralViewModelObservable()
+            .pipe(distinctUntilChanged())
+            .subscribe(() => {
+                const isProjected = this.checkIsProjected();
+                if (this.isProjected !== isProjected) {
+                    this.isProjected = isProjected;
+                    this.changeEvent.next();
+                }
+            });
+    }
+
+    public ngOnDestroy(): void {
+        if (this.projectorRepoSub) {
+            this.projectorRepoSub.unsubscribe();
+            this.projectorRepoSub = null;
+        }
+    }
 
     /**
      * Click on the projector button
@@ -79,7 +111,7 @@ export class ProjectorButtonComponent implements OnInit {
         if (this.object) {
             if (this.projector) {
                 // if the projection target was defines before
-                if (this.isProjected()) {
+                if (this.checkIsProjected()) {
                     // remove the projected object
                     this.projectorService.removeFrom(this.projector, this.object);
                 } else {
@@ -98,7 +130,7 @@ export class ProjectorButtonComponent implements OnInit {
      *
      * @returns true, if the object is projected on one projector.
      */
-    public isProjected(): boolean {
+    public checkIsProjected(): boolean {
         if (!this.object) {
             return false;
         }
diff --git a/client/src/app/shared/components/speaker-button/speaker-button.component.ts b/client/src/app/shared/components/speaker-button/speaker-button.component.ts
index 46bc6599b..f1d2c922c 100644
--- a/client/src/app/shared/components/speaker-button/speaker-button.component.ts
+++ b/client/src/app/shared/components/speaker-button/speaker-button.component.ts
@@ -1,4 +1,7 @@
-import { Component, Input } from '@angular/core';
+import { Component, Input, OnDestroy } from '@angular/core';
+
+import { Subscription } from 'rxjs';
+import { distinctUntilChanged } from 'rxjs/operators';
 
 import { ListOfSpeakersRepositoryService } from 'app/core/repositories/agenda/list-of-speakers-repository.service';
 import { ContentObject, isContentObject } from 'app/shared/models/base/content-object';
@@ -18,15 +21,27 @@ import {
     selector: 'os-speaker-button',
     templateUrl: './speaker-button.component.html'
 })
-export class SpeakerButtonComponent {
+export class SpeakerButtonComponent implements OnDestroy {
     @Input()
     public set object(obj: BaseViewModelWithListOfSpeakers | ContentObject | null) {
+        let listOfSpeakers: ViewListOfSpeakers;
         if (isBaseViewModelWithListOfSpeakers(obj)) {
-            this.listOfSpeakers = obj.listOfSpeakers;
+            listOfSpeakers = obj.listOfSpeakers;
         } else if (isContentObject(obj)) {
-            this.listOfSpeakers = this.listOfSpeakersRepo.findByContentObject(obj);
+            listOfSpeakers = this.listOfSpeakersRepo.findByContentObject(obj);
         } else {
-            this.listOfSpeakers = null;
+            listOfSpeakers = null;
+        }
+
+        this.cleanLosSub();
+
+        if (!!listOfSpeakers) {
+            this.losSub = this.listOfSpeakersRepo
+                .getViewModelObservable(listOfSpeakers.id)
+                .pipe(distinctUntilChanged())
+                .subscribe(speakerObj => {
+                    this.listOfSpeakers = speakerObj;
+                });
         }
     }
 
@@ -52,8 +67,21 @@ export class SpeakerButtonComponent {
         return this.listOfSpeakers.closed ? 'The list of speakers is closed.' : 'List of speakers';
     }
 
+    private losSub: Subscription;
+
     /**
      * The constructor
      */
     public constructor(private listOfSpeakersRepo: ListOfSpeakersRepositoryService) {}
+
+    public ngOnDestroy(): void {
+        this.cleanLosSub();
+    }
+
+    private cleanLosSub(): void {
+        if (this.losSub) {
+            this.losSub.unsubscribe();
+            this.losSub = null;
+        }
+    }
 }