From 7583d927474da7dd3ffae743c03cefe2558408bd Mon Sep 17 00:00:00 2001
From: Eugene Pankov <john.pankov@gmail.com>
Date: Sun, 7 Feb 2021 12:49:22 +0100
Subject: [PATCH] set terminus to use built-in graphics by default - fixes #657

---
 terminus-core/src/components/appRoot.component.ts |  2 ++
 terminus-core/src/services/hostApp.service.ts     | 14 ++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/terminus-core/src/components/appRoot.component.ts b/terminus-core/src/components/appRoot.component.ts
index c028b60c..9d64d1bf 100644
--- a/terminus-core/src/components/appRoot.component.ts
+++ b/terminus-core/src/components/appRoot.component.ts
@@ -142,6 +142,8 @@ export class AppRootComponent {
 
         this.touchbar.update()
 
+        this.hostApp.useBuiltinGraphics()
+
         config.changed$.subscribe(() => this.updateVibrancy())
         this.updateVibrancy()
 
diff --git a/terminus-core/src/services/hostApp.service.ts b/terminus-core/src/services/hostApp.service.ts
index d400eb6c..9388e4e0 100644
--- a/terminus-core/src/services/hostApp.service.ts
+++ b/terminus-core/src/services/hostApp.service.ts
@@ -8,6 +8,10 @@ import { ElectronService } from './electron.service'
 import { Logger, LogService } from './log.service'
 import { isWindowsBuild, WIN_BUILD_FLUENT_BG_SUPPORTED } from '../utils'
 
+try {
+    var wnr = require('windows-native-registry') // eslint-disable-line @typescript-eslint/no-var-requires, no-var
+} catch (_) { }
+
 export enum Platform {
     Linux = 'Linux',
     macOS = 'macOS',
@@ -283,6 +287,16 @@ export class HostAppService {
         this.electron.ipcRenderer.send('app:register-global-hotkey', specs)
     }
 
+    useBuiltinGraphics () {
+        const keyPath = 'SOFTWARE\\Microsoft\\DirectX\\UserGpuPreferences'
+        const valueName = this.electron.app.getPath('exe')
+        if (this.platform === Platform.Windows) {
+            if (!wnr.getRegistryValue(wnr.HK.CU, keyPath, valueName)) {
+                wnr.setRegistryValue(wnr.HK.CU, keyPath, valueName, wnr.REG.SZ, 'GpuPreference=1;')
+            }
+        }
+    }
+
     relaunch (): void {
         if (this.isPortable) {
             this.electron.app.relaunch({ execPath: process.env.PORTABLE_EXECUTABLE_FILE })