Does this work for win10 build 1903 when laptop is plugged-in ?

[pcmaniac23]

In the past, (Win10 1803) I had the issue that the built in Intel HD Graphics was actively changing the contrast of my laptop monitor while it's running in battery mode. For example, when a dark color is being displayed , the entire screen would become lightened and when a light image is being displayed, the entire screen would become darkened.

I was able to get around the issue (for battery mode) by disabling that feature from the Intel HD Graphics Control Panel. This problem also exists for when the laptop is in plugged-in mode (and there is no option to turn it off under plugged-in mode in the Intel HD Graphics Control Panel), but I was also able to get around this problem in plugged-in mode by following this post:

laptop-monitor-brightness-changes-depending-on-image-displayed

by using the "DCUserPreferencePolicy" registry value technique.

However, since updating to Win10 1903 in the past few days, I found the problem is back (for plugged-in mode). I stumbled across your repo while looking for a solution to this annoying problem and gave your scripts a try. However, I suspect it's not working (from my own testing when my laptop is in plugged-in mode). The built-in Intel HD graphics chip is altering my screen contrast again.

Could you please verify to see if the scripts work for Win10 1903? I saw in your ReadMe that you verified for Win10 builds prior to Jan 2019.

Some info regarding my specs:

• Intel HD Graphics 630
• Driver version: 21.20.16.4550 (quite old, I know. But this is the only driver I've used and managed to get around the problem for both plugged-in mode and battery mode)

[orev]

Currently the script is written and tested on Microsoft Surface devices, which uses an OEM driver and does not have the Intel Control Panel. Current version is 24.20.100.6293.

If you have the Intel Control Panel with the option to disable it, I think it would be a bug in the driver/control panel if it doesn't work. I think I saw that a newer version of the Intel driver, possibly a beta, does have the option, so it might be worth testing out the newer driver to see if that helps.

I won't be able to update/test the script until the newer drivers are approved for use on a Surface Pro.

[JiaChen-Zeng]

My laptop is having the problem only when plugged-out, though. I can confirm this works in Windows 1909 and Intel HD Graphics 620 with the driver version 24.20.100.6346. The first reboot failed and became a black screen, though. Shut down and boot again. It works normally. However, I remember my driver version was 27.xxxxx. Don't know why it fell back but it's OK as long as the DPST problem is fixed.