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Display Stream Compression (DSC) is a VESA-developed video compression algorithm designed to enable increased display resolutions and frame rates over existing physical interfaces, and make devices smaller and lighter, with longer battery life. [1]
30 pin receptacle including the following electrical interfaces: 2-lane DisplayPort v1.1a, USB 3.0, USB On-The-Go, Analog stereo line-out, HDMI CEC for remote control, high output power line from both host and portable device Male Mini-VGA plug on top of an Apple laptop, female port is second from right. Mini-VGA (used for laptops)
No signal conversion is necessary, nor is there a loss of video quality when a DVI-to-HDMI adapter is used. [5]: §C The Consumer Electronics Control (CEC) capability allows HDMI devices to control each other when necessary and allows the user to operate multiple devices with one handheld remote control device. [5]: §6.3
HDMI lacks VGA compatibility and does not include analog signals. DVI is limited to the RGB color model while HDMI also supports YCbCr 4:4:4 and YCbCr 4:2:2 color spaces, which are generally not used for computer graphics. In addition to digital video, HDMI supports the transport of packets used for digital audio.
VGA/DVI baluns are baluns with electronic circuitry used to connect VGA/DVI sources (laptop, DVD, etc.) to VGA/DVI display devices over long runs of CAT-5/CAT-6 cable. Runs over 130 m (400 ft) may lose quality because of attenuation and variations in the arrival time of each signal.
Pin 12, ID1, of the VGA connector is used as the data pin of the I²C bus, and the formerly-unused pin 15 is the I²C clock. Pin 9, previously used as a mechanical key, supplies +5V DC power (up to 50mA) to power the EEPROM. With this, the host can read the EDID even if the monitor is powered off.