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scottaxcell / winddcutil

Windows implementation of the ddcutil Linux program for querying and changing monitor settings, such as brightness and color levels.
https://github.com/scottaxcell/winddcutil
MIT License
154 stars 19 forks source link

capabilities returns an empty string #9

Open PataviniMa opened 9 months ago

PataviniMa commented 9 months ago

Hello, my desktop PC is connected via VGA to a Samsung C27F396. I'm able to retrieve and set all the VPC features through DDC using other tools like "ControlMyMonitor". For example, I can switch the input source (60). Using the latest pre-compiled binary of winddcutil, however, the capabilities command just returns 0 and prints nothing to stdout. Also, directly changing a VCP feature through the "set" command seems to have no effect at all. How can I troubleshoot this?

gazpachoking commented 5 months ago

I think it's because controlmymonitor shows the codes in hex, and this utility uses the decimal number. Try using 96 instead of 60 for the input source code.