Derpsever, for those of you not keeping track, is my well-aged all-purpose server that handles all of my entertainment needs: sabnzbd+, sickbeard and couchpotato are all kept busy regularly and storing data to the NAS. Derpsever also serves as my media server for the NAS to my devices, including my vidon.me box.
Recently, I added a monitor to the server as it's been headless for many years. I installed glances as a CLI utility to monitor system activity. I ran into problems because the screen would go to sleep after 10 minutes or so and I'd have to press a key on the keyboard to re-activate the display output. Not ideal for passive delivery of data.
Searching the net seemed to be a bit of an easter-egg hunt - while there were plenty of responses to the question of how-to disable the screen timeout for the X-based environments, I wasn't able to locate something similar for the terminal/command-line equivalent.
I posted a request to the Ubuntu forums and within a few minutes received the solution - and am re-posting here mainly as a reference point for myself, but also to make a better set of context-sensitive keywords for the issue.
Note to all you bloggers and solution-providers -- the odds of someone finding your posting is much greater if your keywords are problem-based as opposed to solution-based.
# sudo vi /etc/default/grub
-- change the GRUB_CMDLINE_LINUX_DEFAULT variable to the following:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash consoleblank=0"
-- save the file, update grub, and reboot:
# sudo grub-update
# sudo init 6
The screen-saver will be disabled and you'll have a perpetual display. Of course the warnings about screen refresh apply so as to avoid burn-in. Also, ensure that you've disabled the auto-sleep feature if your monitor is so equipped.