Jan 10 2022 07:43 PM
Hello!
I am trying to change the monitor brightness via the API "SetMonitorBrightness".
On all of my test devices with external monitors, this works fine.
However, it does not work on all of my 20 Surface Pro 7+ computers.
The error is "An error occurred while transmitting data to the device on the I2C bus."
The problem is discussed here on stackoverflow.
Somebody suggested that the problem might be that the Surface Pro 7+ monitor is not DDC/CI enabled / capable.
Can somebody from Microsoft confirm this?