diff --git a/configuration.nix b/configuration.nix
index 478c7bb..7fe1cc6 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -54,6 +54,8 @@
 
     "nvidia-x11"
     "nvidia-settings"
+    "nvidia-persistenced"
+    
     "vscode"
     "code"
     "Oracle_VM_VirtualBox_Extension_Pack"
diff --git a/surfacebook-configuration.nix b/surfacebook-configuration.nix
index ae21dff..04d8a13 100644
--- a/surfacebook-configuration.nix
+++ b/surfacebook-configuration.nix
@@ -31,6 +31,7 @@ in
       enable = true;
       finegrained = true;
     };
+    nvidiaPersistenced = true;
     prime = {
       offload = {
         enable = true;
@@ -42,14 +43,8 @@ in
     };
   };
 
-  # disable systemd services
-  systemd.services = {
-    nvidia-resume = {
-      enable = false;
-      restartIfChanged = false;
-    };
-  };
-
-  # power tuning
-  powerManagement.powertop.enable = true;
+  # preserve video memory after suspend https://wiki.archlinux.org/title/NVIDIA/Tips_and_tricks#Preserve_video_memory_after_suspend
+  #boot.extraModprobeConfig = ''
+  #  options nvidia NVreg_PreserveVideoMemoryAllocations=1 NVreg_TemporaryFilePath=/var/tmp
+  #'';
 }