Displayport AltDP mode on R6C
Posted: Sun Sep 10, 2023 1:24 pm
To my understanding the RK3588s SOC offers DP1.4 Alt-mode on its USB3.0OTG port.
Unfortunately on the R6C this USB3.0OTG channel is mapped to the USB3 Type A port (resulting in a strange Mask Rom flashing procedure where you would use this USB A port as device port apparently...)
I would like to be able to use the AltDP mode to benefit of Displayport on to an old iMac with target display mode or more generally on a monitor without HDMI input...
Does anyone knows if it would still be possible to activate this AltDP mode with for example a chained USB3.0 A to C adapter and an usb C to Displayport adapter ?
Unfortunately on the R6C this USB3.0OTG channel is mapped to the USB3 Type A port (resulting in a strange Mask Rom flashing procedure where you would use this USB A port as device port apparently...)
I would like to be able to use the AltDP mode to benefit of Displayport on to an old iMac with target display mode or more generally on a monitor without HDMI input...
Does anyone knows if it would still be possible to activate this AltDP mode with for example a chained USB3.0 A to C adapter and an usb C to Displayport adapter ?