More verbose and thorough checks for gfx switching

- Small fixes
- Cleanup bios help
- g-sync warnings on toggling

Cargo.lock

@@ -33,7 +33,7 @@ dependencies = [
 
 [[package]]
 name = "asusctl"
-version = "3.1.1"
+version = "3.1.2"
 dependencies = [
  "daemon",
  "gumdrop",
@@ -188,7 +188,7 @@ dependencies = [
 
 [[package]]
 name = "daemon"
-version = "3.1.4"
+version = "3.1.5"
 dependencies = [
  "env_logger",
  "intel-pstate",