[SOLVED] How do I permanently disable screen blanking?

[melinuxfool]

I'm using xorg-server-1.20.8-r1, and plasma-desktop-5.19.4 with kernel 5.8.3 at the moment. Within Plasma, under System Settings --> Power Management --> Activity Settings, I have "Never turn off the screen" and "Never shut down the computer or let it go to sleep" both enabled. I do not have xscreensaver installed. I also have the following script in ~/.config/autostart-scripts, and the executable bit is set.

Code: Select all

#/bin/bash
xset s off
xset -dpms

However, every time I power off the screen, screen blanking gets reenabled, either when I turn it back on while it is still off, I don't know which. The desired setting does seem to persist when I reboot the system, however. Is there a system setting I can modify somewhere that just flat out turns this off forever and for always? I have no need of this feature and absolutely hate it with the fire of a thousand suns, as it always seems to remind me of its existence when I'm right in the middle of watching a long video online.

Running xset q when I first boot the system confirms that the screensaver is off (timeout is 0) and that DMPS is disabled, but if I turn off just the screen (it's actually a TV that it's plugged into via HDMI) and leave it for a while, the timeout setting gets reset to 900, and the screen will go blank again after 15 minutes of no input from the keyboard or mouse, which of course happens all the time when I'm watching videos.

[Ionen]

I don't know if it's going to change anything beside remove the need for a script but personally I have it set in my xorg.conf.d:

Code: Select all

Section "ServerFlags"
        Option "BlankTime" "0"
EndSection

And I don't disable DPMS nor use xset, never seen blanking/screensaver/settings-reset no matter how much I turn off my monitor. But I don't use KDE so no idea what it does in that regard, hopefully its users will have a better answer to give you.

Edit: Well, if xorg is doing a full reset (for some reason, could be a driver-specific thing) then it'll read its configs again and the above could help. If KDE or something else is changing settings, then probably not.

[melinuxfool]

I don't know if it's going to change anything beside remove the need for a script but personally I have it set in my xorg.conf.d:

Code: Select all

Section "ServerFlags"
        Option "BlankTime" "0"
EndSection

And I don't disable DPMS nor use xset, never seen blanking/screensaver/settings-reset no matter how much I turn off my monitor. But I don't use KDE so no idea what it does in that regard, hopefully its users will have a better answer to give you.

Edit: Well, if xorg is doing a full reset (for some reason, could be a driver-specific thing) then it'll read its configs again and the above could help. If KDE or something else is changing settings, then probably not.

Thank you very much! That seems to have worked.

[vitaly-zdanevich]

I have it set in my xorg.conf.d:

It can be any filename in /etc/X11/xorg.conf.d ?