$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Realtek RTL8723de Driver on Mint Gnu/Linux Distro

GNU/Linux Mint Realtek RTL8723de Driver Setup Guide

The linked tutorials show you step-by-step How to Install Realtek RTL8723de Wireless Driver on Mint GNU/Linux desktops – Step by step Tutorials.

Especially relevant: this Realtek RTL8723de Driver Linux Mint Dkms Setup should be working on 5+ Kernels and also after a Kernel’s Upgrade.

Please be aware of how this Driver is Not supporting all the Linux Kernels range, so in case of issue consult the available Online Documentation.

So as a possible Solution, then you may also see: How to Install New Kernel Guide.

Again, in case of Issue for preventing any possible Driver loading Interference you should also take into account: How to Blacklist Kernel Modules.

How to Install Realtek RTL8723DE Driver in Mint GNU/Linux Distro

GNU/Linux Mint Realtek RTL8723de Driver Installation Guide