Using Dasung Paperlike HD-F and HD-FT with Raspberry Pi 4

Note: I only have access to the Paperlike HD-FT, but if someone gets it working with the Paperlike Pro, I'll be happy to update my instructions.

The Dasung Paperlike Pro / Paperlike HD are E-ink monitors that have many nice properties (and work well outdoors).

They generally work with most HDMI outputs, but I had problems with the Raspberry Pi 4. The point of this repo is to document what I had to do to get it working (I can't fully tell which device is at fault here, but I suspect both the Pi 4 and the Paperlike have issues).

What I did to make it work:

1. extracted the EDID from the Paperlike on a iMac and included it as edid.dat, including it in the same directory as the config.txt (which is typically /boot but /boot/firmware on Ubuntu)

2. forced the use of this using

hdmi_edid_file=1
hdmi_cvt=2200 1650 40 1 0 0 1
hdmi_group=2
hdmi_mode=87

in config.txt. Note: it is now incompatible with anything but the Paperlike HD.

For convenience, I have included my config.txt and edid.dat this repo.

Using Dasung Paperlike Pro-F/FT with Raspberry Pi 4

Raspbian

The monitor works fine without any specific settings on the latest Raspbian.

Ubuntu

I've extracted the edid from the Paperlike Pro monitor with the help of get-edid command.

On Ubuntu Core with installed standard ubuntu desktop I did:

1. Put edid.dat in /boot/firmware/ dir.
2. Edit /boot/firmware/usercfg.txt and add hdmi_edid_file=1 (see example config)

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• It is very important to use HDMI 1.4 micro-hdmi m -> hdmi f otherwise the monitor will not work but will show black dots noise.
• The only available resolution is 1600*1200.