[SOLVED] Is it possible for a monitor to lose color gamut over time?

[taylorhuston]

I have an Asus Pro Art PA279q. A 27″, supposedly factory calibrated color accurate monitor with 100% AdobeRGB coverage. I’ve had it for almost six years now.

During those six years I have kept it calibrated using the Datacolor Spyder5 and it’s software. After not bothering to calibrate it for quite some time, I tried again and the Datacolor software reported that it was only covering about 65% of the AdobeRGB space now. I tried resetting all of the settings within the OSD and using both the dedicated AdobeRG modes as well as the ‘user’ setting. No change. Did some Googleing, came across DisplayCAL and tried that, same results.

I’ve tried running DisplayCAL a few times with different settings, honestly don’t entirely know what I am doing, but every time I get basically the same results. It reports the monitor has between 65% and 67% AdobeRGB coverage. Has the monitor started to go bad? Is the Spyder5 actually the problem? Something else I am missing?

This is on a Windows 11 PC and an AMD RX 580 GPU, if that matters.

 

[siaan312]

Not an expert on this type of technical stuff, but I know that monitors can color shift over time, and do need to be regularly calibrated.
I do not know of a monitor degrading in that way otherwise.

 

[punkncat]

Every monitor I have ever owned drifted towards red and became darker the older they got. I feel it is a normal process.

 

[hang-the-9]

The backlight also looses brightness over time and that affect how things look.