Fix kde scaling issue with arch and nvidia on Macbook Pro with external monitor

<p>Manually set the dpi. Edit...</p> <pre><code>sudo vim /etc/X11/mhwd.d/nvidia.conf </code></pre> <p>Add to &quot;Screen&quot;...</p> <pre><code>Option &quot;UseEdidDpi&quot; &quot;False&quot; Option &quot;DPI&quot; &quot;96x96&quot; </code></pre> <p>Making something like...</p> <pre><code>Section &quot;Screen&quot; Identifier &quot;Screen0&quot; Device &quot;Device0&quot; Monitor &quot;Monitor0&quot; DefaultDepth 24 SubSection &quot;Display&quot; Depth 24 Option &quot;UseEdidDpi&quot; &quot;False&quot; Option &quot;DPI&quot; &quot;96x96&quot; EndSubSection EndSection </code></pre> <p>From: https://forum.manjaro.org/t/nvidia-proprietary-driver-ui-scaling-issue/38204/6</p>