From d20bbfce3f087aee3720504d9767df2b7d04f444 Mon Sep 17 00:00:00 2001
From: abbey <61197745+affectioned@users.noreply.github.com>
Date: Tue, 18 Aug 2026 17:20:49 +0200
Subject: [PATCH 1/2] fix: force GTK3 on Linux to prevent white screen on
 Arch/CachyOS

Electron's GTK4 renderer paints the window white on many Arch-based
distros (CachyOS reported in #43). The main process still starts, so
Discord RPC connects, but the network service crashes and the renderer
never shows content. The existing Vulkan/Ozone workarounds handle
Wayland but not this GTK4 rendering bug.

Force GTK3 via --gtk-version=3, following the fix confirmed in Arch BBS
#306492. Sandbox stays enabled.

Fixes #43

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 src/main.js | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/main.js b/src/main.js
index 5017e5d..d8b4c58 100644
--- a/src/main.js
+++ b/src/main.js
@@ -10,15 +10,18 @@ const {
 const { connectDiscordRpc, updateRichPresence, clearPresence } = require('./scripts/discordRpcUtils');
 const { checkForUpdates } = require('./scripts/updateChecker');
 
-// Linux/Wayland fix: Electron 43 (Chromium) defaults to a Vulkan graphics
-// backend that is incompatible with the Wayland ozone platform. The GPU process
-// fails to initialize, which cascades into the network service crashing and a
-// permanent white screen. Let Ozone auto-pick the platform for the current
-// session and disable the Vulkan backend so GL rendering is used instead.
-// Must run before app is ready. Sandbox stays enabled — no --no-sandbox needed.
+// Linux fix: Electron 43 (Chromium) defaults to a Vulkan graphics backend
+// that is incompatible with the Wayland ozone platform, and its GTK4 renderer
+// paints white on many Arch-based distros (CachyOS in particular). Both fail
+// modes cascade into the network service crashing and a permanent white
+// screen. Let Ozone auto-pick the platform, disable the Vulkan backend, and
+// force GTK3 so the renderer paints. Must run before app is ready. Sandbox
+// stays enabled — no --no-sandbox needed.
+// See: electron/electron#33690 (GTK4), electron/electron#43400 (net service).
 if (process.platform === 'linux') {
   app.commandLine.appendSwitch('ozone-platform-hint', 'auto');
   app.commandLine.appendSwitch('disable-features', 'Vulkan');
+  app.commandLine.appendSwitch('gtk-version', '3');
 }
 
 let rpcInterval = null;

From 7c0af68ca5b2a4f59ff484559d4b4529839cf5b5 Mon Sep 17 00:00:00 2001
From: abbey <61197745+affectioned@users.noreply.github.com>
Date: Mon, 24 Aug 2026 13:28:17 +0200
Subject: [PATCH 2/2] fix: drop GPU-process sandbox on Linux for AppImage on
 Arch/CachyOS

The GTK3/Vulkan-disable fix got the app past init, but the network service
still crashes ~20s after launch on Arch/CachyOS AppImages (works fine under
yarn start). Root cause is the zygote-spawned GPU child not inheriting
Wayland/DRM flags inside the AppImage squashfs mount (electron/electron#50462),
which cascades into the net service dying.

--disable-gpu-sandbox is the narrow fix: only the GPU process runs
unsandboxed, renderer sandbox stays on. Safer than --no-sandbox and safer
than --in-process-gpu (which is reported to break networking).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 src/main.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/main.js b/src/main.js
index d8b4c58..e901d05 100644
--- a/src/main.js
+++ b/src/main.js
@@ -14,14 +14,17 @@ const { checkForUpdates } = require('./scripts/updateChecker');
 // that is incompatible with the Wayland ozone platform, and its GTK4 renderer
 // paints white on many Arch-based distros (CachyOS in particular). Both fail
 // modes cascade into the network service crashing and a permanent white
-// screen. Let Ozone auto-pick the platform, disable the Vulkan backend, and
-// force GTK3 so the renderer paints. Must run before app is ready. Sandbox
-// stays enabled — no --no-sandbox needed.
-// See: electron/electron#33690 (GTK4), electron/electron#43400 (net service).
+// screen. Let Ozone auto-pick the platform, disable the Vulkan backend, force
+// GTK3, and drop the GPU-process sandbox (the zygote GPU child in AppImage
+// squashfs mounts doesn't inherit Wayland flags, which cascades into the net
+// service dying ~20s after launch). Must run before app is ready. Renderer
+// sandbox stays on — this only opens the GPU process.
+// See: electron/electron#33690 (GTK4), electron/electron#50462 (GPU zygote).
 if (process.platform === 'linux') {
   app.commandLine.appendSwitch('ozone-platform-hint', 'auto');
   app.commandLine.appendSwitch('disable-features', 'Vulkan');
   app.commandLine.appendSwitch('gtk-version', '3');
+  app.commandLine.appendSwitch('disable-gpu-sandbox');
 }
 
 let rpcInterval = null;