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Monoprice
VCP Version: 2.1
Controller manufacturer: Mstar
Controller model: mh=x00, ml=xff, sh=x56
Firmware version: 0.0
Manufacture year: 2020
This monitor has 2 HDMI inputs and 2 DisplayPort inputs. The capabilities string reports that VCP feature x60 takes the values x11, x12, x0f, and x10, which per the MCCS spec are HDMI-1, HDMI-2, DisplayPort-1 and DisplayPort-2 respectively.
However the actual values, which are reported by getvcp and settable by setvcp are:
- x05 - HDMI-1
- x06 - HDMI-2
- x07 - DisplayPort-1
- x08 - DisplayPort-2
A new input source can only be set when ddcutil setvcp 60 is issued from the current input source.
It is also the case that getvcp and other queries only work when issued on the current input source.
The ASCII "serial number" in the EDID is blank, and the binary serial number is 0. Consequently, 2 monitors manufactured at the same time will have identical EDIDs, which will confuse software that depends on the EDID to uniquely identify a display.