kfix / ddcctl

DDC monitor controls (brightness) for Mac OSX command line
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Docs for USB-C monitor connection #115

Open daiwa233 opened 3 years ago

daiwa233 commented 3 years ago

Adds the port for USB-C, tested on AOC U27N3C

kfix commented 3 years ago

so input "15" is already listed as being for DisplayPort-1.

is your monitor using 15 for USB-C instead @daiwa233 ?

kfix commented 3 years ago

comment in !76 seems to agree with this

https://github.com/kfix/ddcctl/issues/76#issuecomment-689974980

kfix commented 3 years ago

another comment says 15 can be the thunderbolt port on some 4K monitors. good grief... https://github.com/kfix/ddcctl/issues/67#issuecomment-686634573

daiwa233 commented 3 years ago

Thank you for your work.

so input "15" is already listed as being for DisplayPort-1.

is your monitor using 15 for USB-C instead @daiwa233 ?

Yes, my monitor which is AOC U27N3C using 15 for USB-C instead.

gradypark86 commented 2 years ago

I have an AOC U27N3C too. It should be noted that 15 is not always for USB-C. When you use USB-C and DP at the same time, 15 is for DP particularly. I tried to program to find out what value is for USB-C in this scene. Unfortunatley, there is no solution between 0-255. I guess you use HDMI+USB-C, so 17 is for HDMI1, 18 is for HDMI2, and 15 is for USB-C.