gfx: enable correct rebootless compute mode switch

CHANGELOG.md

@@ -8,6 +8,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Split out all aura functionality that isn't dependent on the daemon in to a
   new crate `rog-aura`
+- Correctly enable compute mode for nvidia plus no-reboot or logout if switching
+  from vfio/integrated/compute.
 
 # [3.4.1] - 2021-04-11
 ### Changed

daemon/src/ctrl_gfx/gfx.rs

@@ -282,10 +282,14 @@ impl CtrlGraphics {
     fn write_modprobe_conf(vendor: GfxVendors, devices: &[GraphicsDevice]) -> Result<(), RogError> {
         info!("GFX: Writing {}", MODPROBE_PATH);
         let content = match vendor {
-            GfxVendors::Nvidia | GfxVendors::Hybrid | GfxVendors::Compute => MODPROBE_BASE.to_vec(),
+            GfxVendors::Nvidia | GfxVendors::Hybrid => {
+                let mut base = MODPROBE_BASE.to_vec();
+                base.append(&mut MODPROBE_DRM_MODESET.to_vec());
+                base
+            },
             GfxVendors::Vfio => Self::get_vfio_conf(devices),
-            // GfxVendors::Compute => {}
             GfxVendors::Integrated => MODPROBE_INTEGRATED.to_vec(),
+            GfxVendors::Compute => MODPROBE_BASE.to_vec(),
         };
 
         let mut file = std::fs::OpenOptions::new()
@@ -419,8 +423,8 @@ impl CtrlGraphics {
     fn logout_required(&self, vendor: GfxVendors) -> GfxRequiredUserAction {
         if let Ok(config) = self.config.lock() {
             let current = config.gfx_mode;
-            if matches!(current, GfxVendors::Integrated | GfxVendors::Vfio)
-                && matches!(vendor, GfxVendors::Integrated | GfxVendors::Vfio)
+            if matches!(current, GfxVendors::Integrated | GfxVendors::Vfio | GfxVendors::Compute)
+                && matches!(vendor, GfxVendors::Integrated | GfxVendors::Vfio | GfxVendors::Compute)
             {
                 return GfxRequiredUserAction::None;
             }

daemon/src/ctrl_gfx/mod.rs

@@ -26,6 +26,9 @@ static MODPROBE_BASE: &[u8] = br#"# Automatically generated by asusd
 blacklist nouveau
 alias nouveau off
 options nvidia NVreg_DynamicPowerManagement=0x02
+"#;
+
+static MODPROBE_DRM_MODESET: &[u8] = br#"
 options nvidia-drm modeset=1
 "#;