Hello Emiliyan,
DDC/CI commands are not yet supported on this type of devices.
8.0 brought support for DDC/CI (so tools like Screen Bright) on devices based on the most popular chip.
There is no ETA to enable contrast/brightness on Windows 10 Anniversary Update yet. The team is working on establishing the foundations and making it stable as a priority, before bringing new features.
Kind regards,
Alban
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