Linked Questions

35 votes
9 answers
93k views

How can I change brightness through terminal [duplicate]

Now I can change it by Fn+ arrow right but now I need to do it via my shell script
RiaD's user avatar
  • 1,395
1 vote
2 answers
7k views

Adjust brightness from Terminal [duplicate]

I'm trying to edit the brightness of my System76 laptop screen from my window manager i3wm. I've tried the following: xbacklight -dec 10 does nothing sudo vim /sys/class/backlight/intel_backlight/...
Sauhaarda Chowdhuri's user avatar
0 votes
1 answer
1k views

Ubuntu 13.10, brightness settings issue [duplicate]

I haven't experienced any issues when 13.10 is installed on my desktop but after installing it on my laptop (Fujitsu LifeBook) the brightness settings seem to default to the dimmest setting and even ...
bradwrites's user avatar
0 votes
1 answer
870 views

Brightness Control In Samsung RV 509 [duplicate]

I have recently installed Ubuntu 12.04 on my Samsung laptop RV509 with Nvidia grahics card but brightness remain unchanged. How can I make the brightness control work?
user183149's user avatar
1 vote
1 answer
199 views

Which command can I run to adjust brightness of my screen? [duplicate]

My LUbuntu 18.04's lxpanel is not working. Which command can I run to adjust brightness of my screen? Thanks.
Tim's user avatar
  • 25.1k
0 votes
2 answers
172 views

How can I actually adjust the brightness of my display? [duplicate]

I'm on a fresh installation of Ubuntu and planning to install i3wm. Unfortunately, the brightness is completely stuck on the maximum, rendering it basically torture to use during the night. Neither ...
spokify's user avatar
0 votes
1 answer
118 views

How to switch the screen illumination off and continue typing? [duplicate]

I can switch the screen illumination manually off by pressing Fn+F6 on my laptop keyboard. This is the same as automatically switching it off on idle as it can be set in the power management. The ...
Horst Grünbusch's user avatar
1 vote
0 answers
37 views

Brightness reduced after installation [duplicate]

After installing Ubuntu 13.04 the display brightness of my laptop has reduced. Increasing the brightness in system settings makes no change. Can you help me tackle this problem?
Albee Johnson's user avatar
49 votes
15 answers
103k views

Unable to change brightness in a Lenovo laptop

Brightness adjustment keys <Fn + ⇑/⇓> have no effect (although they are recognized by the environment), and I can't change the brightness using GUI tools as well. This seems like a problem in ...
Oleh Prypin's user avatar
  • 2,545
51 votes
10 answers
71k views

Is there a software utility to adjust screen gamma/brightness/contrast?

I use to work at night and it is eye-hurting to watch at lightbulb-bright screens (I've got two - laptop's built-in panel and an external 18-inch CRT) in a dark environment. So I adjust my screens to ...
Ivan's user avatar
  • 57k
29 votes
6 answers
23k views

Can I control brightness on second monitor?

I have a thinkpad (x301) with an external monitor connected via a DisplayPort to HDMI cable. I can control the brightness of the laptop monitor using the keys on the laptop, but I can't work out how ...
Hamish Downer's user avatar
6 votes
6 answers
13k views

Ubuntu 20.04 Lenovo IdeaPad 5 Ryzen 4800u Display Brightness not working

I cannot get changing the display brightness to work. I have a Lenovo IdeaPad 5 with AMD Ryzen 4800u CPU and integrated Vega graphics. I tried the following solutions: Grub property acpi_backlight, ...
Der Alex's user avatar
  • 163
3 votes
7 answers
27k views

Can't adjust screen brightness on Ubuntu 12.04LTS

My laptop is Samsung NP-Q430-JS03US. I have searched for the solution. I have tried editing grub acpi_osi=Linux and acpi_backlight=vendor, but still didn't work. Please help.
user129427's user avatar
8 votes
2 answers
32k views

Changing Screen Brightness Through Keyboard Functions on My Notebook

I've installed Ubuntu 16.04 on my Asus X555LJ. But I don't know how to install drivers or how to enable function keys to controls screen backlight brightness.
Mek Vala's user avatar
11 votes
4 answers
10k views

Ubuntu 14.04 Brightness issue with nvidia Quadro

I recently upgraded from Ubuntu 13.10 to 14.04. Everything is fine, except the brightness of my laptop screen. When I change the brightness the screen simply does not respond. I figured this was a ...
danielvdende's user avatar

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