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#1 2025-08-14 14:09:04
- ergo
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- Registered: 2023-12-23
- Posts: 4
no dimming screen options
hello
i do have "dim screen" on my laptop but there is no option on stationary ps with external monitor
problem is "automatic screen black" in "power options" disabling monitor at all
i didn't found working screensaver
i didn't found working solution on https://wiki.archlinux.org/title/Backlight
i do use gnome on wayland and oled monitor
is there is way to force enable gnome dimmig or some analog for same result?
thanks
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#2 2025-08-14 19:00:57
- seth
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- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,177
Re: no dimming screen options
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#3 2025-08-14 19:12:51
- ergo
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- Registered: 2023-12-23
- Posts: 4
Re: no dimming screen options
i need something to make screen like 80-100% darker after 20-30 seconds of inactivity but without disabling power on display not eye protection, thanks
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#4 2025-08-14 19:21:12
- seth
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- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,177
Re: no dimming screen options
100% darker is "off"…
You're looking for some gamma ramp manipulation - on X11 there're like a hundred tools that can do that (starting w/ xrandr) - if gnome doesn't provide that feature via nightlight, there's no way to do
Seems to be an open bug since 6 years - if your monitor doesn't support https://wiki.archlinux.org/title/Displa … (E-)DDC/CI there's no way as long as you're using gnome on wayland.
As pointed out in https://wiki.archlinux.org/title/Backlight#Wayland there're wayland patches for redshift, whether this works on gnome/wayland since it's not wlr compatible, idk.
The alternative is to adjust the brightness on the framebuffer console *before* starting gnome (or gdm etc)
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#5 2025-08-14 19:32:08
- ergo
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- Registered: 2023-12-23
- Posts: 4
Re: no dimming screen options
100% darker is black for oled it's mean pixels off, but display electronics still on, thats actually what i want, and it not supose to manipulate with monitor gamma/brightness its can be like just black picture owerrige everysing on screen idk, on laptop its cals dim screen and working perfecty on wayland
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#6 2025-08-14 19:36:58
- seth
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- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,177
Re: no dimming screen options
Your notebook has backlight control, which has absolutely nothing to do w/ the display server (or OS)
The equivalent is https://wiki.archlinux.org/title/Displa … (E-)DDC/CI which is supported by *some* monitors (and they typically will advertise that and you'll have an OSD menu entry about it)
Most consumer monitors will simply have brightness control buttons on the bezel.
The *only* other option is to do this in software by rendering the image darker (ie. adjust the gamma ramps)
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