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Questions tagged [brightness]

The tag has no usage guidance.

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1answer
24 views

How to reset all brightness modifications?

I have followed many instructions in the past and now things are bad. Like: Suppose if I sleep and wake up my laptop, I have to toggle the brightness again in order to make my PC realize what was my ...
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0answers
16 views

KEEP backlight off + LCD on with cursor/keyboard input

I'm trying to keep my backlight off but the LCD on even though inputs are coming from the keyboard and/or trackpad. I'm working on an Asus Aspire One running Linux Mint (32bit). I've just installed ...
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0answers
18 views

How can I keep brightness from always resetting to 5% on reboot?

In Mint 19.1 Cinnamon, after reboot, brightness is always 5%. This occurred twice with new installs. I can reset brightness in the Power Management, but I don't want to do it each time. This line, ...
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0answers
68 views

Changing screen brightness with keys doesn't work on clevo based laptop

So I've got Debian with GNOME on my Clevo N85_87HP6 laptop with a GTX1060 video display adapter plus Intel's integrated GPU. Pressing fn + f8/f9doesn't change my screen's brightness. I've tried using ...
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0answers
32 views

Where can I find the scripts binded to the lower volume / increase volume and brightness media keys?

When I press the media key on my keyboard to increase the volume (or the brightness, for example) a script is run and the volume is increased as expected. Where are those scripts located in the OS? ...
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0answers
186 views

Screen brightness on X220 with Fn keys does not work below some threshold

I have a Thinkpad X220 and am running Debian 9 stable with kernel Linux version 4.9.0-8-amd64 (debian-kernel@lists.debian.org) (gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) ) #1 SMP Debian 4.9....
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0answers
80 views

Debian 9: Backlight Flash at Boot

I've just installed a fresh new Debian 9 LXDE into an ACER AMD Notebook and everything seems to be working fine. However, during the boot, there is an annoying Strong Backlight Flash (seems like a ...
3
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2answers
2k views

Debian 9: Backlight Brightness

I've just installed a fresh new Debian 9 with LXDE into an ACER AMD Notebook and everything seems to be working fine, except for the backlight brightness. During the boot, it happens the following: ...
0
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1answer
37 views

Is there a way to run a command whenever the screen turns on?

Linux kernel 4.x introduced a screen brightness issue on my laptop that I've been unable to fix with various boot parameters and their combinations. The issue appears whenever the screen turns back on....
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0answers
144 views

bindsym/xbacklight inconsistent inc/dec values

I'm using xbacklight to increment and decrement by 10% and run the comment using my keyboard function keys (Arch Linux, i3-wm): bindsym XF86MonBrightnessDown exec --no-startup-id xbacklight -dec 10 ...
-1
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1answer
185 views

HP Spectre x360 13" 2016 brighness not working

I have tried multiple variants of Linux on my said hardware, but each one of them has been unable to change brightness. Both the dedicated hardware buttons and UI sliders do affect the brightness and ...
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0answers
388 views

Ubuntu - Grub menu won't show up anymore after low battery shutdown

I have dualbooted my MacBookAir and have been using my Ubuntu 16.04.3 LTS (Xenial Xerus) partition without any issue for a long time. Now when I restart my computer, the screen goes black and computer ...
2
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2answers
937 views

How to change brightness from tty?

On Knsole(GUI) I executed xrandr --output HDMI1 --brightness 976 then the screen turned to almost a white board. I can't use GUI any more. Press ctrl+alt+F2, got a tty. I want to reset brightness, ...
0
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1answer
4k views

Debian 9 stretch can't adjust laptop monitor brightness with fn keys

Laptop Model: HP Pavilion dv6 2170ee I could change monitor brightness by fn + f7 / f8 keys in Debian 7 wheezy. But since I installed Debian 9 stretch, seemingly, these keys do not work. Even in ...
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0answers
284 views

CentOS 6.9 brightness change don't work

I have Intel HD 620 graphics card on my laptop. I have installed CentOS 6.9, but I can't change brightness of my monitor. On Windows 10 it works without any problem. In my case /sys/class/backlight ...
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0answers
144 views

Brightness not working on Samsung N150 (netbook)

I have problems with managing the brightness on my netbook Samsung. I created and edited the 20.intel.conf file but nothing happened. I've also checked the graphics in /sys/class/backlight, and it ...
1
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0answers
243 views

Brightness Control missing on Debian 8

I've been using debian 8 from some time, with version 8.9 on dell inspiron 5000 series. Brightness control is missing from the beginning. I don't see brightness controller at all. I installed ...
1
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1answer
3k views

Brightness slider absent in Kali Linux

I tried re-installing kali linux for other reasons, and still don't see it For some reason, running latest Kali linux, brightness slider is absent in the top right right-click menu where it usually ...
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0answers
767 views

xbacklight doesn't work Linux Mint i3

Hello follow Linux users, I am currently setting up i3 and I want to configure the brightness buttons. I want to use xbacklight for this but it doesn't work. If I enter xbacklight into the terminal ...
0
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2answers
879 views

XFCE won't increase brightness with hotkeys

I've bougth a Lenovo Thinkpad 13 and I've installed Fedora 26 with XFCE. But I've a problem with the brigthness and the hotkey to increase or decrease this. I've the no problem to increase it with ...
1
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2answers
246 views

Using brightness/volume keys in tty/virtual console?

I'm wondering if it's possible to adjust (increment/decrement) brightness or volume with a laptop keyboard's dedicated brightness/volume keys in the virtual console. Can the system be configured to ...
1
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1answer
676 views

Brightness key issue on Lenovo P71

I've got a Lenovo Thinkpad P71 with the NVidia Quadro P3000, that has the "Discrete Graphics" setting on the BIOS, and I'm using the proprietary drivers on Debian 9. For some reason, the brightness ...
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0answers
278 views

How do I make a gdbus call from udev?

I am trying to set the display brightness through udev so that I can have different brightness levels on battery and mains power. The following gdbus call works from the command line:- gdbus call --...
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0answers
558 views

Reduce brightness in Grub

I have a laptop whose buggy BIOS can't set display panel brightness to a previous lower value during POST. Every time the laptop boots , the POST screen is 100% bright. I can refresh the brightness ...
3
votes
1answer
677 views

Is there a way to reduce screen brightness or change its colors when using the SCFB driver on FreeBSD?

Background I am running FreeBSD 12-CURRENT on Lenovo Yoga 3 14 and I use the SCFB graphics driver instead of Intel and Nvidia drivers as I couldn't get them to work (or the hardware is simply not ...
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0answers
80 views

Cannot get lowest brightness with kernel 4.4.0-53-generic

I have been using kernel 3.16 in my Dell Laptop for a long time with Linux Mint 17 and previous versions and the problem here had never happened until LM18. Very often I set the lowest possible ...
4
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2answers
3k views

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)
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0answers
782 views

Update GNOME Shell brightness slider automatically on brightness change

Up till GNOME 3.22, this extension works, but on GNOME 3.24 it doesn't. I would like to set a different brightness level for plugged-in and on-battery states, which I can do with the following command:...
1
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0answers
82 views

Why is Trisquel Belenos screen brightness always on maximum?

I have laptop Acer Aspire intel 4 core and nvidia 910m graphic's card. Screen brightness is alway's on max, i find on askUbuntu solution for Ubuntu , but these folder's doesn't even exist on my system....
1
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1answer
887 views

How to write to /sys/ with a script after rebooting? (sudo)

I'm trying to write to /sys/class/backlight/intel_backlight/brightness and read from /sys/class/backlight/intel_backlight/max_brightness from a script I wrote. The problem is it requires root, and ...
2
votes
1answer
3k views

(Fedora 25) Change Screen Brightness Using Function Keys (ASUS TP300L)

Before even beginning to share the problem, I understand that this issue has been brought up a number of times, on different websites. Literally beaten to death. But unfortunately none of the solution ...
2
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0answers
278 views

Missing /sys/kernel/debug/vgaswitcheroo

I have recently bought a Dell Inspiron 5567 and I have installed Debian 8 on it. First of all my wireless was not working so I had to update my linux kernel to 4.1 and copy some iwlwifi firmware from ...
3
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0answers
236 views

Earliest I can run xrandr?

Every time I boot my laptop I go blind. I can use xrandr to set the brightness but it becomes a rather impractical. I also use LUKS so when I boot the computer I am always greeted with (from what I ...
3
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0answers
464 views

Convert NEF to JPG with optimal brightness

There are multiple tools for converting Nikon raw images (.NEF) to JPEG, as well as there are multiple discussions on this topic (e.g. Converting .NEF to .JPG). My question regards optimal settings ...
2
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0answers
610 views

Brightness control keys not working in linux

I recently bought the Lenovo 500s-14isk and it came with windows 10 installed. Yesterday, I installed in dual boot mode Elementary OS. Didn't notice anything wrong during the installation, but the ...
4
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2answers
2k views

Can't get my brightness Fn keys working on ASUS N551VW

I know there are many similar questions already but none of the solutions listed there helped me. Laptop: ASUS N551VW VGAs: Intel Skylake (00:02.0) + nVidia GTX 960M (01:00.0) Distro: Linux Mint 18 ...
2
votes
1answer
2k views

How to enable monitor brightness keyboard shortcuts on Samsung 90X3A?

I've set up a Samsung 90X3A from scratch (using BIOS boot to avoid a known related issue), and I'm having trouble enabling the screen brightness keys (Fn+F2 and Fn+F3). The current state: Manually ...
2
votes
1answer
385 views

FreeBSD Nvidia drivers Screen Brightness & Power Management

I am running FreeBSD 11RC2 with The current Nvidia-driver version 367.44 and using the nvidia-modeset kernel module that's loaded at startup in my /etc/rc.conf file by adding kld_list="nvidia-...
2
votes
1answer
716 views

Modify brightness hotkeys behavior

The Debian sid install on my Lenovo T450 allows control over the brightness via fn+F5 and fn+F6 keys. In dark environments, the minimum brightness setting is too dim for me, however min brightness + ...
0
votes
1answer
6k views

How to change screen brightness Centos 7

I cannot get xbacklight to work at all due to Centos 7 not supporting it. I am using a thinkpad p50s. I would like to be able to then bind the command to the buttons meant for brightness but I am ...
0
votes
1answer
579 views

How to Enable Brightness Buttons when acpi_osi of Grub not enough in Debian of Zenbook?

Initial condition: brightness-control buttons do not work, no animation of brightness-control not seen on actions, but manual control of brightness work in Settings and at the top-bar. Condition ...
1
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1answer
319 views

Linux 4.7.x ACPI screen brightness regression

Since I've upgraded to Linux 4.7, if I set the screen brightness to any value other than 100% (with either fn keys or gnome sliders) it starts flashing from the brightness level I've set (e.g. 50%) to ...
1
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2answers
821 views

acpi_video0 brightness no effect on the screen

Currently, I am trying to change the brightness of my Ubuntu system. This is my first time using Ubuntu. I couldn't change the brightness using the fn key. This is because my keyboard don't have the ...
4
votes
1answer
540 views

Brightness up/down keys don't work

I installed Ubuntu 16.04 on an ASUS Z450LA laptop, that has Intel HD5500 integrated graphics. The brightness up/down keys (Fn+F5/F6) don't work; however, if I use my desktop environment to control ...
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2answers
3k views

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 ...
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0answers
140 views

Screen brightness on Debian after sleep/hibernate on Macbook with Intel graphics card

I'm having trouble with the screen brightness on my Macbook. After (re)booting, it works fine, but after closing and re-opening the lid, the screen is either really bright (on the top 3 brightness ...
4
votes
1answer
1k views

How can I make xrandr modifications persist for more than 1 second?

Updates: This question describes similar symptoms Ubuntu - Xrandr doesn't change my resolution, but it seems like the underlying cause is different as there are no changes to my Xorg-log files in ...
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0answers
121 views

Max brightness too dim Debian + Gnome + Fglrx

I'm running: Debian Jessie Gnome3 fglrx drivers Asus Laptop : VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri [Radeon R6 Graphics] The max screen brightness is too dim. I ...
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votes
1answer
1k views

Backlight control doesn't work in Manjaro with nVidia GF108GLM [NVS5200M]

I have just scrapped Linux Mint 16 for Manjaro (kernel 4.1.15) on my Dell Latitude 6530. I have installed NVidia proprietary drivers in the hope resume from hibernate would work. It does but now I'm ...
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0answers
40 views

Do light color codes work across all distros and terminals? [duplicate]

I use \033[1;34m for light blue. I am using Debian and Putty and it works for me. However, I've heard that it may not work for all users (using different distros and terminals). Is that true? Do they ...