Attempt to provide more info to users gfx switching

CHANGELOG.md

@@ -5,6 +5,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Changed
+- Set PM to auto for Nvidia always
+- Extra info output for gfx dev scan
+- Extra info in log for G-Sync to help prevent user confusion around gfx switching
 
 # [3.6.1] - 2021-05-25
 ### Changed

daemon/src/ctrl_gfx/controller.rs

@@ -1,3 +1,4 @@
+use sysfs_class::RuntimePM;
 use ::zbus::Connection;
 use ctrl_gfx::error::GfxError;
 use ctrl_gfx::*;
@@ -66,7 +67,10 @@ impl CtrlGraphics {
         let mut nvidia = Vec::new();
         let mut other = Vec::new();
         for dev in devs.iter() {
-            let c = dev.class()?;
+            let c = dev.class().map_err(|err|{
+                error!("GFX: device error: {}, {}", dev.path().to_string_lossy(), err);
+                err
+            })?;
             if 0x03 == (c >> 16) & 0xFF {
                 match dev.vendor()? {
                     0x1002 => {
@@ -75,6 +79,7 @@ impl CtrlGraphics {
                     }
                     0x10DE => {
                         info!("GFX: {}: NVIDIA graphics", dev.id());
+                        dev.set_runtime_pm(sysfs_class::RuntimePowerManagement::On)?;
                         nvidia.push(GraphicsDevice::new(dev.id().to_owned(), functions(&dev)));
                     }
                     0x8086 => {
@@ -400,6 +405,18 @@ impl CtrlGraphics {
     ) -> Result<(), RogError> {
         // Rescan before doing remove or add drivers
         bus.rescan()?;
+        // Make sure the power management is set to auto for nvidia devices
+        let devs = PciDevice::all()?;
+        for dev in devs.iter() {
+            let c = dev.class().map_err(|err|{
+                error!("GFX: device error: {}, {}", dev.path().to_string_lossy(), err);
+                err
+            })?;
+            if 0x03 == (c >> 16) & 0xFF && dev.vendor()? == 0x10DE {
+                info!("GFX: {}: NVIDIA graphics, setting PM to auto", dev.id());
+                dev.set_runtime_pm(sysfs_class::RuntimePowerManagement::On)?;
+            }
+        }
         //
         Self::write_xorg_conf(vendor)?;
         // Write different modprobe to enable boot control to work

daemon/src/ctrl_rog_bios.rs

@@ -121,7 +121,8 @@ impl CtrlRogBios {
                 CtrlRogBios::set_path_mutable(ASUS_SWITCH_GRAPHIC_MODE)?;
             }
             Err(err) => {
-                info!("ROG Switchable Graphics (bios) not detected: {}", err);
+                info!("G-Sync Switchable Graphics not detected: {}", err);
+                info!("If your laptop is not a G-Sync enabled laptop then you can ignore this. Standard graphics switching will still work.");
             }
         }
 
@@ -130,7 +131,7 @@ impl CtrlRogBios {
                 CtrlRogBios::set_path_mutable(ASUS_POST_LOGO_SOUND)?;
             }
             Err(err) => {
-                info!("ROG boot sound toggle (bios) not detected: {}", err);
+                info!("Switch for POST boot sound not detected: {}", err);
             }
         }