Enable macOS HiDPI

Update 2021-09-11

For macOS Big Sur Version 11.5.1

$ sh -c "$(curl -fsSL https://raw.githubusercontent.com/boboidream/one-key-hidpi/master/hidpi.sh)"

Explanation

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 This script can simulate macOS HiDPI on a non-retina display, and have a "Native" Scaled in System Preferences.

Some device have wake-up issue, script's second option may help, it inject a patched EDID, but another problem may exists here.

Logo scaling up may not be resolved, cuz the higher resolution is faked.

System Preferences

Usage

Run script in Terminal

$ sh -c "$(curl -fsSL https://raw.githubusercontent.com/xzhih/one-key-hidpi/master/hidpi.sh)"

Recovery

If you cant boot into system, or get any another issues, you can use clover -x reboot or into Recovery mode, remove your display's DisplayVendorID folder under /System/Library/Displays/Contents/Resources/Overrides , and move backup files

In Terminal:

$ cd /Volumes/"Your System Disk Part"/System/Library/Displays/Contents/Resources/Overrides
$ VendorID=$(ioreg -l | grep "DisplayVendorID" | awk '{print $8}')
$ Vid=$(echo "obase=16;$VendorID" | bc | tr 'A-Z' 'a-z')
$ rm -rf ./DisplayVendorID-$Vid
$ cp -r ./backup/* ./

Inspired

https://www.tonymacx86.com/threads/solved-black-screen-with-gtx-1070-lg-ultrafine-5k-sierra-10-12-4.219872/page-4#post-1644805

https://github.com/syscl/Enable-HiDPI-OSX