One thing that bugs me with Fedora 39 is that the screen dims after only one minute. This is on an AMD. I have the power settings on Power Savings, but Automatic Screen Brightness and Dim Screen are turned off. What do I need to do?
Maybe try disabling dimm on power saving options on settings?
As I mentioned, Iāve already done that.
Ah right, sorry missed that, are you on latest BIOS version?
Sounds like the dimming is still enabled. So long as you are on officially supported GNOME Fedora 39 Workstation, this should help.
Run:
gsettings get org.gnome.settings-daemon.plugins.power idle-dim
If it comes back as true
, try this:
gsettings set org.gnome.settings-daemon.plugins.power idle-dim false
then check again:
gsettings get org.gnome.settings-daemon.plugins.power idle-dim
Iām using the current bios.
I checked, and it came back as false. Itās still doing it.
It looks like, when youāre on power saving mode the dimm is overriden to take effect even when disabled.
Maybe try xset -dpms
This is what I got:
server does not have extension for -dpms option
How about via dconf?
org->gnome->settings->daemon->plugins->power->sleep-inactive-ac-timeout
set sleep-inactive-ac-timeout to 300 (seconds) set sleep-inactive-ac-type to ālogoutā
That was confusing but helpful. I didnāt realize dconf was dconf editor that needed to be installed. Also, why did you put ālogoutā? I replaced it with ānothingā for both AC and battery. It did seem to have done the trick.
Actually, it didnāt fix it. Any other ideas?
It feels like by design, and inherent with GNOME, are you open to other Desktop Environments? that may offer more options, or play with non-saving power mode which wonāt dimm your screen.
I had this same issue, searching for a solution lead me to KDEā¦
Here you can see the response to a user is that all is behaving as expected, user settings are not respected in this mode. I think this is one of those things like brightness increments that are not user adjustable unless you want to build it yourself.
Seems they took inspiration from Appleās ālow power modeā which also overrides user screen timeout settings and forces it to 30s.
Thanks for sharing the link! The last message in that thread has useful advice. I was able to prevent automatic dimming in power mode in Fedora 41 by running the following in the Terminal:
gsettings set org.gnome.settings-daemon.plugins.power idle-brightness 100