Document gnome sleep issue, enable dynamicBoost

slimbook/hero/rpl-rtx/README.txt

@@ -2,13 +2,33 @@
 
 This configuration is for the Slimbook Hero with an i7-13620H and an RTX 4060.
 Model name: SLIMBOOK HERO-RPL-RTX.
-To run software on you Nvidia GPU, use the `nvidia-offload` command. For example:
+To run software on your Nvidia GPU, use the `nvidia-offload` command. For example:
 ```
 nvidia-offload `nix-shell -p glxinfo --run 'glxgears'`
 ```
 For more information, visit: https://wiki.nixos.org/wiki/NVIDIA#Offload_mode
 
+<details><summary>System information</summary>
 ```bash
+>neofetch
+OS: NixOS 24.11.20241216.3945713 (Vicuna) x86_64 
+Host: SLIMBOOK HERO-RPL-RTX 
+Kernel: 6.6.66 
+Uptime: 37 mins 
+Packages: 1296 (nix-system), 893 (nix-user), 2 (nix-default), 9 (flatpak) 
+Shell: bash 5.2.37 
+Resolution: 2560x1440 
+DE: GNOME 47.1 (Wayland) 
+WM: Mutter 
+WM Theme: Adwaita 
+Theme: Adwaita [GTK2/3] 
+Icons: Adwaita [GTK2/3] 
+Terminal: kgx 
+CPU: 13th Gen Intel i7-13620H (16) @ 4.700GHz 
+GPU: Intel Raptor Lake-P [UHD Graphics] 
+GPU: NVIDIA GeForce RTX 4060 Max-Q / Mobile 
+Memory: 4448MiB / 15734MiB 
+
 $ lspci -nn
 00:00.0 Host bridge [0600]: Intel Corporation Device [8086:a715]
 00:01.0 PCI bridge [0604]: Intel Corporation Raptor Lake PCI Express 5.0 Graphics Port (PEG010) [8086:a70d]
@@ -34,3 +54,65 @@ $ lspci -nn
 03:00.0 Non-Volatile memory controller [0108]: Micron Technology Inc 2550 NVMe SSD (DRAM-less) [1344:5416] (rev 01)
 04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
 ```
+</details>
+
+## Power Management
+My testing shows suspend issues (tested in GNOME) when using `hardware.nvidia.powerManagement.enabled = true`, regardless of the value of `hardware.nvidia.powerManagement.finegrained`. 
+This seems related to this [issue](https://github.com/NixOS/nixpkgs/issues/336723), which is offered a solution in [this discouse thread](https://discourse.nixos.org/t/suspend-resume-cycling-on-system-resume/32322/12) with this config:
+
+<details>
+```nix
+systemd = {
+     services."gnome-suspend" = {
+      description = "suspend gnome shell";
+      before = [
+        "systemd-suspend.service" 
+        "systemd-hibernate.service"
+        "nvidia-suspend.service"
+        "nvidia-hibernate.service"
+      ];
+      wantedBy = [
+        "systemd-suspend.service"
+        "systemd-hibernate.service"
+      ];
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = ''${pkgs.procps}/bin/pkill -f -STOP ${pkgs.gnome-shell}/bin/gnome-shell'';
+      };
+    };
+    services."gnome-resume" = {
+      description = "resume gnome shell";
+      after = [
+        "systemd-suspend.service" 
+        "systemd-hibernate.service"
+        "nvidia-resume.service"
+      ];
+      wantedBy = [
+        "systemd-suspend.service"
+        "systemd-hibernate.service"
+      ];
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = ''${pkgs.procps}/bin/pkill -f -CONT ${pkgs.gnome-shell}/bin/gnome-shell'';
+      };
+    };
+  };
+```
+</details>
+
+At the same time, the Nvidia driver reports power management to still be working even with `nvidia.powerManagement.enable = false`:
+```bash
+>cat /proc/driver/nvidia/gpus/0000:01:00.0/power
+Runtime D3 status:          Enabled (fine-grained)
+Video Memory:               Off
+
+GPU Hardware Support:
+ Video Memory Self Refresh: Supported
+ Video Memory Off:          Supported
+
+S0ix Power Management:
+ Platform Support:          Supported
+ Status:                    Disabled
+```
+
+For more information see the [Nvidia documentation](https://download.nvidia.com/XFree86/Linux-x86_64/565.77/README/powermanagement.html), chapters 21 and 22.

slimbook/hero/rpl-rtx/default.nix

@@ -16,14 +16,14 @@
     };
     nvidia = {
       prime = {
-        # Make sure to use the correct Bus ID values for your system!
         intelBusId = lib.mkDefault "PCI:0:2:0";
         nvidiaBusId = lib.mkDefault "PCI:1:0:0";
       };
       powerManagement = {
-        enable = lib.mkDefault false;
+        enable = lib.mkDefault false; # Causes sleep issues. See README for more information
         finegrained = lib.mkDefault false;
       };
+      dynamicBoost.enable = true;
     };
   };