jeremy/FW_LED_System_Monitor
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Improved monitor brightness calculation

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= 2025-08-18 23:24:02 -04:00
parent 7cb7a29262
commit 296c67a2bf
1 changed files with 4 additions and 15 deletions
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19
monitors.py
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@ -168,28 +168,17 @@ def get_monitor_brightness():
Returns:
A value between 0.0 and 1.0 which is scaled to the monitor's brightness
"""
brightness_value = 1.0
try:
if os.name == 'nt':
return wmi.WMI(namespace='wmi').WmiMonitorBrightness()[0].CurrentBrightness / 100.0
else:
try: # First try the dGPU brightness
brightness_max = int(open('/sys/class/backlight/amdgpu_bl2/max_brightness', 'r').read())
brightness_value = int(open('/sys/class/backlight/amdgpu_bl2/brightness', 'r').read()) / brightness_max
except: # If that doesn't work, try the iGPU brightness
brightness_max = int(open('/sys/class/backlight/amdgpu_bl1/max_brightness', 'r').read())
brightness_value = int(open('/sys/class/backlight/amdgpu_bl1/brightness', 'r').read()) / brightness_max
gpu_designator = os.listdir('/sys/class/backlight')[0] # Get the gpu designator
brightness_max = int(open(f'/sys/class/backlight/{gpu_designator}/max_brightness', 'r').read())
return int(open(f'/sys/class/backlight/{gpu_designator}/brightness', 'r').read()) / brightness_max
except Exception as e:
print(f"Error in get_monitor_brightness(): {e}")
if brightness_value < 0.0:
print(f"Invalid brightness value returned by get_monitor_brightness(): {brightness_value}")
brightness_value = 0.0
elif brightness_value > 1.0:
print(f"Invalid brightness value returned by get_monitor_brightness(): {brightness_value}")
brightness_value = 1.0
return 1.0
return brightness_value
if __name__ == "__main__":
print(get_monitor_brightness())