Questions tagged [brightness]
145 questions
19
votes
11 answers
Control screen brightness in i3
I would like to control the screen brightness in i3, in Intel laptops that come with Fn keys for the purpose. These keys function with any other DE.
First making sure devices available are Intel:
$ ls -l /sys/class/backlight/
total 0
lrwxrwxrwx 1…
Luís de Sousa
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15
votes
2 answers
How to obtain more brightness levels using Fn+keys in Xfce?
When using keyboard's keys to adjust brightness I'm only getting 10 values (levels) of screen brightness. Meanwhile using Xfce plugin for brightness, I can fine-tune brightness.
However I want a highly adjustable brightness level.
Is there any way…
banuy
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13
votes
2 answers
How to measure light?
I've got a Dell Latitude E6410 notebook which changes lcd light intensity in response to ambient light levels, so it has to have some photocell. How can I access the data from this photocell? I tried different google searches like lux meter, light…
gadelat
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13
votes
6 answers
How can I change screen brightness in debian wheezy that installed in laptop?
My screen is just too bright. How can I adjust screen brightness? So far I tried the following:
"Brightness and lock" settings doesn't work.
Fn + F6 or F7 doesn't work.
This doesn't work.
This doesn't work too.
My Laptop is Toshiba Satelite L745
Mas Bagol
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12
votes
3 answers
Screen brightness 100% with proprietary Nvidia driver
After having installed the proprietary Nvidia driver on Debian Jessie in order to play Steam games (which I now can), I can't change the brightness at all, it is stuck at the maximum and is irritating my eyes at night. I have already tried all of…
anon76
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12
votes
4 answers
Is there a way to adjusts the brightness of the monitor?
Using the softbuttons is annoying over time. I mean the real brightness of the backlight (Not X11 gamma). Which protocols are cabable of this? (DVI, HDMI, DP, guess VGA is not)
ManuelSchneid3r
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8
votes
2 answers
Backlight control not working on Lenovo IdeaPad Gaming 3 with Renoir / AMDGPU
The brightness (LCD backlight) controls on a Lenovo IdeaPad Gaming 3 (15ARH05, LCD display, AMD Renoir CPU Ryzen 5 4600H, discrete NVIDIA GeForce 1650 Ti Mobile) are not working:
Fn keys show the brightness slider on the display…
Thomas Luzat
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8
votes
4 answers
How to change LCD intensivity/brightness
How to change brightness of LCD want image look deemed and soft the
xrandr --output LVDS1 --gamma 0.8:0.8:1.1
change only gamma but not the brightness of image. I have no option --brightness for xrandr
Yurij73
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8
votes
4 answers
How to get brightness keys working inside openbox session?
I'm using Openbox window manager without DE.
I'd like to get fn + [brightness up/down icon] working like it is in GNOME/KDE, but I’m looking for a lightweight solution without gnome-power-manager and similar.
I know about the xbacklight console…
kravemir
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8
votes
2 answers
Set the screen brightness: xbacklight does not work on HDMI, xrandr --brightness does not stick
I'm trying to set custom screen bindings in i3WM and looking for a way to decrease/increase the brightness on button press. I've tried using the following:
xbacklight -dec10
xbacklight -set 70
xbacklight would work however it does not affect my…
tuxedozombie
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7
votes
2 answers
How to create keyboard shortcuts for screen brightness in Xubuntu (XFCE Ubuntu)?
How to create keyboard shortcuts for screen brightness in XFCE?
Ideally the solution uses inbuilt functionality which does not additionaly drain the battery (by installing a service/daemon, etc)
Greg
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7
votes
3 answers
Gnome-shell cannot adjust screen brightness on dell laptop with intel graphics
On my dell laptop (XPS 13 developer) running Fedora 21 I am in a situation similar to this, or this. I can give some more details tough.
Under directory /sys/class/backlight I have:
dell_backlight/brightness
intel_backlight/brightness
Where the…
guido
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6
votes
2 answers
Screen very dim after resume from suspend
I'm unable to resume from 'Suspend to RAM'. It resumes properly, albeit with a very very dim screen (so dim I can barely make out the desktop). Trying to brighten the screen using the Fn keys doesn't work, and the only option is to switch the…
Jay
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5
votes
1 answer
How does the screen backlight work?
Everything about the backlight settings and controls work for me except:
Backlight resets to max. on every reboot/boot.
The backlight minimum goes on to complete black screen, instead of the minimum brightness setting elsewhere.
NB> I see that 1.…
charlie
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5
votes
2 answers
Adjust backlight via DDC?
I'm looking for a simple way of adjusting an external monitor's backlight
using DDC. Something like good-ddc-tool --monitor 0 --backlight 100 that just works without complicating things when a single monitor is connected (the common case).
I've…
Andreas
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