There are computer displays out there without any OSD buttons. No, really. I have one of those. So how do you say turn the brightness up? No problem, u have a software with buttons and sliders to control every aspect of you computer display. Collection of protocols to make such application is called Display Data Channel(DDC). On Linux PC you really have only one option, Ddccontrol application and its GUI variant named Gddcontrol...
Continue readingDebian/Ubuntu Gddccontrol as non-root
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