Linked Questions

2
votes
1answer
3k views

brightness not working ubuntu 16.04 LTS [duplicate]

I've a Sumsung series 5 laptop with 4GB ram dual booted with Windows 10 and Ubuntu 16.04 LTS. My brightness does not work although the "function key+brightness button" shows the indication that it is ...
0
votes
2answers
2k views

I can not increase or decrease the brightness of my screen on UBUNTU 15.10 [duplicate]

just wondering if anybody knows what's the problem. I use the brightness bar control with my keyboard or in options, the computer shows me the brightness bar increasing or decreasing but the screen is ...
0
votes
0answers
40 views

brightness used to work until [duplicate]

My brightness used to work normally until I did bunch of things I don't know which caused the problem. The brightness from keyboard shows me the indicator on screen but doesn't change, from settings ...
66
votes
10answers
198k views

Cannot change brightness (Ubuntu 16.04 LTS, Unity)

I'm new to Linux systems in general (I'm using Ubuntu 16.04 LTS) and I'm having difficulty in changing the brightness of my notebook. When I use the Fn+F8 or Fn+F9 the brightness bar shows up but ...
43
votes
13answers
120k views

Brightness fn key shortcut doesn't work on ASUS laptop

The brightness shortcuts via fn key don't work. I tried each solution from this answer and its comments. After editing /etc/default/grub file I rebooted. GRUB_CMDLINE_LINUX="acpi_osi=Linux" ...
15
votes
9answers
19k views

nvidia backlight brightness problem

Problem Unity shows control while I press the Fn+Increase/Descrese brightness, but nothing happens. In console brightness doesn't work too while X server is running. Checked solutions I have tried ...
8
votes
2answers
11k views

Ubuntu 14.04 brightness problem (Lenovo Z500)

My brightness controls weren't working before, but I didn't really care, but somehow I lowered my screen brightness while downloading league through playonlinux. Now the brightness controls aren't ...
5
votes
5answers
8k views

Make Ubuntu remember screen brightness level without xbacklight

The problem is that Ubuntu always resets the brightness level to maximum after every reboot. I installed the xbacklight utility, but commands like xbacklight -get or xbacklight -set XX don't work. I ...
1
vote
5answers
4k views

Cannot change screen brightness on my lenovo z 570?

I am not able to change the screen brightness on lenovo z570. Even the function keys for the brightness are also not working. Any idea ?
2
votes
2answers
3k views

Why is Display flickering in Chrome/Chromium of Zenbook UX303UA with Google Plus?

Situation: the display of Zenbook UX303UA is flickering almost like here, but I do not get it in Youtube, only when resolving the new Google Plus website's community section (green one) in Chromium 51....
3
votes
1answer
2k views

How to Enable Brightness Buttons when acpi_osi of Grub not enough in 16.04 of Zenbook?

Situation: to use F5 and F6 for decrease and increase of brightness, respectively, in Asus Zenbook UX303UA, when I can change brightness in System Preferences, and acpi_osi= is not sufficient in ...
0
votes
1answer
2k views

hp star wars laptop keyboard backlight control, & screen brightness

I've just installed 16.04 on a new HP star wars laptop (a reskin of an HP pavillion I believe), but xset led 3 doesn't turn on the keyboard backlight. Also there is no brightness slider or other ...
0
votes
2answers
2k views

Screen will not change brightness (Ubuntu 18.04.4 LTS) [UPDATED INFO]

I am restating my question as posed on my previous post. I cannot change the brightness on my machine. I have a Lenovo Ideapad (330S-15ARR - Type 81FB) running Ubuntu 18.04.4 with an AMD Ryzen 5 ...
0
votes
1answer
2k views

Unable to adjust the brightness in Ubuntu 16.04

I would like to control the brightness of my Laptop(HP Pavilion x360-Convertible) Intel® Core™ i3-7100U CPU @ 2.40GHz × 4 I am not able to work for long hours with the current brightness. I have ...
0
votes
2answers
1k views

Brightness Does not work at all Samsung ultra book intel backlight

I have a problem with my 530U4E/540U4E Samsung Ultrabook Backlight settings; the system doesn't seem detect the change in brightness settings. To fix it I tried the "Intel backlight Fix" because my ...

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