bring jumpyness back

src/browser/Terminal.ts

@@ -516,7 +516,6 @@ export class Terminal extends CoreTerminal implements ITerminal {
     this.onResize(e => this._renderService!.resize(e.cols, e.rows));
 
     this._decorationService = this.register(this._instantiationService.createInstance(DecorationService, this.screenElement));
-    this.register(this._renderService.onRefreshRequest(() => this._decorationService?.refresh()));
 
     this._compositionView = document.createElement('div');
     this._compositionView.classList.add('composition-view');

src/browser/services/DecorationService.ts

@@ -27,6 +27,7 @@ export class DecorationService extends Disposable implements IDecorationService
     @IRenderService private readonly _renderService: IRenderService
   ) {
     super();
+    this.register(this._renderService.onRenderedBufferChange(() => this.refresh()));
   }
 
   public registerDecoration(decorationOptions: IDecorationOptions): IDecoration | undefined {