Why does my laptop "uncalibrate" itself???

[GHP]

OK, a slightly odd thing is happening to my laptop.
I calibrate it with the Colourmunki smile, all fine and dandy.
It reminds me to re-run the calibration every 2 weeks, which I have been doing.
Over the last couple of days, it randomly goes back to it's uncalibrated state,
Easy to see immediately, as it seems a lot brighter and bluer than when it is calibrated.
It has happened when it comes out of screensaver mode.
It's a pain.
Any ideas?
Thanks in advance,
Gary.

edit: forgot to say, HP laptop running win 10

 

[stryvya]

****Turn Off Screen Saver****

and see what happens!!

 

[GHP]

****Turn Off Screen Saver****

and see what happens!!

I Should have said, I have done that.
Still does it after it goes into sleep mode, which is 20 minutes delay if I leave the pc unattended too.

 

[stryvya]

Have you checked Graphic Card Driver up to date!!

what happens if you do a system restore before problem!!

 

[GHP]

Have you checked Graphic Card Driver up to date!!

what happens if you do a system restore before problem!!

I haven't specifically checked card driver TBH, but I will now.
Was thinking of rolling back via system restore, but I would still like to know why this is happening, in case it's something I can avoid in the future.
Thanks for the suggestion, I'll check my drivers now/

 

[sk66]

Dual graphics? My computer will switch between the graphics processors for different things (but looks the same).

 

[neil_g]

With spyder you can right click the system tray icon and reload the calibration. Doesn't colourmonki have anything similar?

Trouble with laptop displays is they always have a certain amount of automatic options to account for changing light (although you should be able to turn this off). One reason why an external screen is always going to be the best option.

 

[GHP]

Dual graphics? My computer will switch between the graphics processors for different things (but looks the same).

Just single card setup.

With spyder you can right click the system tray icon and reload the calibration. Doesn't colourmonki have anything similar?

Trouble with laptop displays is they always have a certain amount of automatic options to account for changing light (although you should be able to turn this off). One reason why an external screen is always going to be the best option.

Ahh, now that's something I didn't know about.
There is indeed a sytem tray icon, and although it appears greyed out, I can right click and it will bring up "profile reminder, prefs etc etc"
If I hover over profile reminder, it just says " All devices have current profiles".
If it switches back to unprofiled again at some point, I will try that, and see what happens.

Thanks for the advice.
Cheers,
Gary.