https://kb.unixservertech.com/ 2026-05-12T21:04:39+00:00 https://kb.unixservertech.com/ https://kb.unixservertech.com/_media/wiki/dokuwiki.svg text/html 2025-01-05T22:07:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://kb.unixservertech.com/unix/desktops/polkit_error?rev=1736114849&do=diff PolKit colord error Summary After the upgrade to Devuan chimaera (Debian Bullseye), I received a message Authentication Required to Create Managed Color Device when trying to log in remotely (via VNC). A little research and I found the excellent articles at text/html 2025-01-18T01:39:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://kb.unixservertech.com/unix/desktops/quickref?rev=1737164392&do=diff Unix Desktop Quick Reference Adjust Desktop When using old televisions as monitors, the screen will not display correctly due to overscanning, where the television sets the visible area to be smaller than the image sent it. In some TV's, this can be modified in its configuration by looking for text/html 2022-11-09T08:19:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://kb.unixservertech.com/unix/desktops/start?rev=1667981961&do=diff Unix Desktops Unix workstations generally run a Graphical User Interface (GUI) similar to MacOS and Microsoft Windows. The one we use at Daily Data is XFCE as it is light weight but powerful. These notes are for various desktops available on Unix.