Profile loader wont work – Win 10

[Photojohn]

I am having a problem where the profile loader says “Calibration curves could not be loaded”

I have attached the log files

thank you

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[Florian Höch]

No videoLUT access. You may need to update your graphics driver.

[Dylan Waddell]

I am having a problem where the profile loader says “Calibration curves could not be loaded”

I was having the same issue after installing windows update 1903 on my laptop with integrated graphics but saw someone mention to try disabling “fast startup” which worked for me. A restart of the system would work fine but turning it on from shutdown it wouldn’t work as it wasn’t truly shutdown (link on how to disable it). It only takes a minute to give it a go, and just put it back worst case.

[kamikatze13]

Can confirm the issue on Windows 10 1903 Build 18362.116 and an Nvidia 1070 on DCH driver ver. 430.86, which is the most current.

Sporadically, after a reboot, the Profile Loader shows a minus sign in its tray icon. Clicking “Reset video card gamma table” yields

Dispwin: Error - We don't have access to the VideoLUT for clearing

in the log window, among other VideoLUT-related errors:

Checking video card gamma table access for display 1...
Dispwin: Error - We don't have access to the VideoLUT
Dispwin: Error - We don't have access to the VideoLUT for clearing
Dispwin: Error - We don't have access to the VideoLUT for loading
Dispwin: Error - We don't have access to the VideoLUT for clearing
...failed!
Checking video card gamma table access for display 2...
Dispwin: Error - We don't have access to the VideoLUT
Dispwin: Error - We don't have access to the VideoLUT for clearing
Dispwin: Error - We don't have access to the VideoLUT for loading
Dispwin: Error - We don't have access to the VideoLUT for clearing
...failed!
Initializing GUI...

• This reply was modified 4 years, 10 months ago by kamikatze13.

[Florian Höch]

Make sure you have all the latest Windows updates installed, especially KB4497935 (v1903 build number should be 18362.145).

[Photojohn]

I will have a look at the fast startup but I have noticed when I first start windows it works then it stops then if I re-start it works again

I have the latest windows update and latest video driver

[kamikatze13]

indeed, KB4497935 was available, even though the system has been freshly installed 3 days ago and windows update was manually checked for updates multiple times before.

anyways, it did not resolve the issue. Build 18362.145 and have a minus sign in the profile loader after a shutdown->start sequence.

powercfg -h off seems to alleviate the issue (by disabling both hibernation and fast startup), though.

[Photojohn]

indeed, KB4497935 was available, even though the system has been freshly installed 3 days ago and windows update was manually checked for updates multiple times before.

anyways, it did not resolve the issue. Build 18362.145 and have a minus sign in the profile loader after a shutdown->start sequence.

powercfg -h off seems to alleviate the issue (by disabling both hibernation and fast startup), though.

I have disabled the fast start so see how it goes

I’ll report back

[Photojohn]

OK disabling the fast start seems to have worked for me at the moment. Early days but all seems good

• This reply was modified 4 years, 10 months ago by Photojohn.

[Photojohn]

I am having a problem where the profile loader says “Calibration curves could not be loaded”

I was having the same issue after installing windows update 1903 on my laptop with integrated graphics but saw someone mention to try disabling “fast startup” which worked for me. A restart of the system would work fine but turning it on from shutdown it wouldn’t work as it wasn’t truly shutdown (link on how to disable it). It only takes a minute to give it a go, and just put it back worst case.

Thank you very much – Very much appreciate your help

Disabling the fast start does not seem to make the startup any slower. I think with an SSD drive its fast enough anyway

• This reply was modified 4 years, 10 months ago by Photojohn.

[t.g.v]

… same problem with AMD card, latest driver and Win 1903 buil date 8.6.2019.

regards – Guenther

i did not have fast start enabled.

[Francisco Garcia]

Hi… I do have same issue with an Intel HD Graphics 520. Used to work fine, but had to reinstall windows, and now I can not install the profile.. I get the same errors… I have Windows 10 May Update with build 18362.175… I tried disabling fast start and did not work… any suggestion is welcomed… Thanks!

• This reply was modified 4 years, 10 months ago by Francisco Garcia.

[Oreo5000]

Hi all,

Having a similar issue here. I have tried disabling everything from startup and also disabling fast boot/hibernate but no joy.

DisplayCAL is now just a grey icon in the task bar and when clicked I am shown the ‘Calibration Loading Disabled’ message.

I’m running Windows 10 OS build 18362.175. Latest GPU drivers (Nvidia 1080Ti).

The issue appears to be a little random, it was working fine yesterday but today after numerous shut downs and restarts I can’t seem to get it to kick in.

Any help would be much appreciated.

Thanks in advance

[Photojohn]

Since disabling the fast start-up I have had no more problems and it all works as it should

Hope it stays that way  – * Fingers Crossed*

• This reply was modified 4 years, 10 months ago by Photojohn.

[Oreo5000]

Since disabling the fast start-up I have had no more problems and it all works as it should

Hope it stays that way  – * Fingers Crossed*

Hi John,

Did you just disable this under:

Control Panel\All Control Panel Items\Power Options\System Settings -> ‘Define power buttons..’

Or is there somewhere else I can try?

[Author]

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