Check if running in NVIDIA graphics mode

debian/changelog

@@ -1,3 +1,10 @@
+hidpi-daemon (18.04.7~~alpha) bionic; urgency=low
+
+  * Daily WIP for 18.04.7
+  * Fixed running in hybrid graphics mode
+
+ -- Tim Crawford <[email protected]>  Fri, 02 Sep 2022 10:26:20 -0600
+
 hidpi-daemon (18.04.6) bionic; urgency=low
 
   * Update hidpidaemon2.py file to set gi require version

hidpidaemon/__init__.py

@@ -25,7 +25,7 @@
 import logging
 
 
-__version__ = '18.04.6'
+__version__ = '18.04.7'
 
 datadir = path.join(path.dirname(path.abspath(__file__)), 'data')
 log = logging.getLogger(__name__)

hidpidaemon/hidpidaemon2.py

@@ -191,14 +191,24 @@ def init_xlib(self):
 
         self.displays_xml = self.get_displays_xml()
 
-    #Test for nvidia proprietary driver and nvidia-settings
+    # Check which GPU is used for rendering the desktop
     def get_gpu_vendor(self):
         if self.model in INTEL:
             return 'intel'
-        modules = open('/proc/modules', 'r')
-        if 'nvidia ' in modules.read() and which('nvidia-settings') is not None:
-            return 'nvidia'
-        else:
+
+        # Check for system76-power/gpu-manager written file first
+        try:
+            with open('/etc/prime-discrete') as mode:
+                if mode.read().strip() == 'on':
+                    return 'nvidia'
+                return 'intel'
+        except:
+            pass
+
+        # Fall back to checking loaded modules
+        with open('/proc/modules', 'r') as modules:
+            if 'nvidia ' in modules.read() and which('nvidia-settings') is not None:
+                return 'nvidia'
             return 'intel'
 
     def add_output_mode(self):
@@ -1046,10 +1056,9 @@ def get_internal_lid_state(self):
                     return True # No lids found: System may not be a laptop.
                 else:
                     lid_file_path = os.path.join('/', 'proc', 'acpi', 'button', 'lid', lid_dirs[0], 'state')
-            lid_file = open(lid_file_path, 'r')
-            if 'open' in lid_file.read():
-                return True
-            else:
+            with open(lid_file_path, 'r') as lid_file:
+                if 'open' in lid_file.read():
+                    return True
                 return False
         except:
             return True