Question on PG32UCDM proximity sensor

[VGeorge]

Just wanted to ask anyone with a PG32UCDM how the sensor works on their monitor.

The manual says that when enabled, it gradually decreases brightness. However, the way it works on mine is it completely turns the monitor off, until the sensor detects something within the set range, turning it back on again.

I was wondering if that's how it's supposed to work and the description in the manual is just wrong.

[Davids777]

Hello, I activated it and my monitor gradually darkens but no idea how it works and the usefulness of the presence detector. I would also like to have more informations on how it works

[VGeorge]

I got this response from a reddit user:
It just turns off the screen after some time. I only saw it decrease brightness when I’m sitting in front of it (so the proximity feature does not activate), but displaying a static image for a while. I think it’s the screen saver feature turning on.

So I think that the proximity sensor just turns the monitor competely off when it doesn't detect anything within the set range, while the screen saver feature dims it.

[Davids777]

Windows is programmed to turn off the screen after 10 minutes for me, so maybe that's why I never saw the sensor turn it off. On the other hand, the system for reducing the brightness works extremely well for me

[VGeorge]

The sensor turns my monitor off quite quickly whenever I test it (it takes much less than ten minutes). So, if you also want to test it, make sure that you have it set to low and there is nothing within the first meter in front of the monitor.

Now, I can set the Windows power plan settings to turn the monitor off when the computer goes to sleep (effectively disabling that setting because I don't need it anymore, so 30 minutes for both). The monitor turns completely off when I am AFK and immediately turns on whenever I sit back at my PC, which I have to say is really neat!

[Davids777]

I would try but I also have a screen saver which is triggered after 5 minutes so that perhaps prevents the screen from being turned off since the image is not static. I love the anti burnin options on this monitor because they work really well. The only one that I find less good is the one that reminds you to clean the pixels because when the screen has just done an automatic cleaning afterwards, the reminder does not take it into account

[VGeorge]

Yes, the burn-in mitigating features are quite decent, can't complain!

[Aureliannn_ROG]

Hi @VGeorge ,

Thank you for contacting us regarding the proximity sensor mechanism issue you are experiencing with your display. 

We understand that you are concerned about the brightness of your display when the proximity sensor is enabled.

Based on your description, it appears that the proximity sensor is working as intended. 

When the proximity sensor is enabled and the system does not detect the presence of an object within the specified range, the system will automatically decrease the brightness of the display periodically. 

This is done to conserve power and protect your eyes from excessive brightness.

The specific brightness reduction behavior will depend on the distance setting you have selected. 

For more information on the default settings for your display model, please consult user manual.

ASUS_PG32UCDM_UM_English.pdf

If you are concerned that the brightness of your display is too low, you can adjust the distance setting to a shorter range. This will increase the sensitivity of the proximity sensor and may prevent the display from dimming as much.

If you are still having trouble with the proximity sensor, please provide us with a video of the issue. 

This will help us to better understand the problem and determine if there is a software or hardware issue that needs to be addressed.

We apologize for any inconvenience this may cause, and we appreciate your understanding.