diff --git a/repos/dde_linux/src/drivers/framebuffer/intel/include/component.h b/repos/dde_linux/src/drivers/framebuffer/intel/include/component.h
index 302a591c9..1b221d5fe 100644
--- a/repos/dde_linux/src/drivers/framebuffer/intel/include/component.h
+++ b/repos/dde_linux/src/drivers/framebuffer/intel/include/component.h
@@ -120,6 +120,16 @@ class Framebuffer::Session_component : public Genode::Rpc_object<Session>
 
 		Genode::Xml_node config() { return _config.xml(); }
 
+		int force_width_from_config()
+		{
+			return _config.xml().attribute_value<unsigned>("force_width", 0);
+		}
+
+		int force_height_from_config()
+		{
+			return _config.xml().attribute_value<unsigned>("force_height", 0);
+		}
+
 
 		/***********************************
 		 ** Framebuffer session interface **
diff --git a/repos/dde_linux/src/drivers/framebuffer/intel/lx_emul.cc b/repos/dde_linux/src/drivers/framebuffer/intel/lx_emul.cc
index 4886cc809..c3e546f1b 100644
--- a/repos/dde_linux/src/drivers/framebuffer/intel/lx_emul.cc
+++ b/repos/dde_linux/src/drivers/framebuffer/intel/lx_emul.cc
@@ -187,6 +187,12 @@ void Framebuffer::Driver::update_mode()
 		                                      _preferred_mode(c)); });
 	}
 
+	/* force virtual framebuffer size if requested */
+	if (int w = _session.force_width_from_config())
+		_config._lx.width = min(_config._lx.width, w);
+	if (int h = _session.force_height_from_config())
+		_config._lx.height = min(_config._lx.height, h);
+
 	if (old._lx.addr)  Lx::iounmap(old._lx.addr);
 	/* drm_crtc.h in drm_framebuffer_funcs definition: use drm_fb_remove */
 	if (old._lx.lx_fb) drm_framebuffer_remove(old._lx.lx_fb);