Questions related to screen brightness.

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0
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1answer
17 views

Low screen brightness

If I turn on my laptop without charger, my screen brightness is very low, not only in Ubuntu desktop but in Grub too. I've got dual-boot, Windows hasn't got this problem. So can you suggest me any ...
0
votes
1answer
21 views

Brightness control not working for ubuntu 14.04

When pressing brightness control buttons on my laptop, there is no change in brightness. Brightness is set at a very high level and it hurts the eyes. Provide some solution ASAP.
1
vote
2answers
26 views

systemd-backlight on Ubuntu 15.04

Hey people of the internet! I have a problem saving/restoring the brightness on my laptop... I am running Ubuntu 15.04 server, with Xfce4, but booting default to command line. My problem now is, ...
0
votes
1answer
68 views

Laptop Brightness not remembered on Power Plugged in

On Ubuntu 14.10 Utopic, using a Samsung Notebook laptop, I can change the brightness correctly and it is remembered upon wake from sleep. However my problem is that when my laptop is on battery and I ...
2
votes
1answer
76 views

Brightness control on Samsung Ativ Book 6

I recently installed Ubuntu 14.04 on my Samsung Ativ Book 6 (NP680Z5E-X01US). Since then I am completely unable to modify my brightness settings. The Fn buttons work fine, if I press Fn+F2/F3 I can ...
2
votes
0answers
17 views

How do I fix an login error ( black screen with cursor on top left corner )?

Actually I've faced problem in adjusting the brightness in Ubuntu 14.04 LTS. Afterwards, I've configured the "20-intel.conf" file with the following command sudo gedit ...
2
votes
1answer
16 views

I cannot adjust brightness of my laptop HP g4 1351tx

I cannot adjust brightness of my laptop HP g4 1351tx. My lshw -c display output. *-display UNCLAIMED description: VGA compatible controller product: GF119M [GeForce 610M] vendor: ...
7
votes
1answer
175 views

“monitor brightness down” key resets brightness before lowering it

My monitor brightness down key resets my brightness before lowering it, effectively leaving me at near max brightness. I do not experience any problems with the brightness up key. I'm using a Dell ...
0
votes
4answers
2k views

Brightness control in Ubuntu 14.04 on Sony Vaio?

I recently installed Ubuntu 14.04 LTS on my Sony Vaio [nVidia GeForce 410M/PCIe/SSE2]. Earlier I had 12.04 installed on it, then I edited the xorg.conf file to control brightness using the function ...
15
votes
8answers
26k views

Brightness not working after installing NVIDIA driver

I recently installed Ubuntu 11.10 on my Mac Book Pro 7,1. I installed the NVIDIA driver (285). The brightness keys are working (F1 and F2) and I get the box showing the brightness but it does nothing. ...
0
votes
0answers
15 views

Function keys and numeric keypad problems on packard bell tk85

i've installed Ubuntu 14.04 on my packard bell tk 85 but i'm having problems with the built-in keyboard. Looking at the keyboard setting i can see that the keys from F1 to F12 are mapped correctly. ...
0
votes
0answers
15 views

Ubuntu MATE brightness keys not working on MacBookPro7,1 with NVIDIA driver, even after fix

I tried the fix detailed in the first answer for this question: Brightness not working after installing NVIDIA driver The second answer caused a failed boot and I had to fix it via Recovery. The ...
0
votes
1answer
21 views

Ubuntu gets stuck at boot screen (freeze, not black) after attempting brightness fix for NVIDIA card

I tried editing /etc/X11/xorg.conf as detailed here: Brightness not working after installing NVIDIA driver My Ubuntu MATE installation on my MacBook Pro Mid-2010 13" now gets stuck at the ...
0
votes
2answers
4k views

Brightness options in Ubuntu 12.04 desktop missing

I am unable to change the brightness of my desktop screen using this path. System settings{top right corner of the screen)>Under Personal Brightness & lock.No option to change brightness is ...
0
votes
3answers
89 views

Asus UX303LAB brightness keys do not work

I am a beginner at using linux and I have been trying to get Ubuntu to work with the ASUS ZenBook UX303LAB (Broadwell version). I am having problems with Brightness keys, keyboard backlight brightness ...
0
votes
1answer
3k views

How to adjust brightness on Lubuntu?

I can't adjust my screen brightness. Indeed, I can't find this option in my system parameters. I am using Lubuntu 12.04. Thank you for your time :)
0
votes
0answers
10 views

Which package is responsible for resetting brightness level on logout or reboot?

I've installed Xubuntu 15.04 and observed that brightness level is still being reset on logout or reboot. Google reveals that this bug has been around since 2011, and this workaround sort of works ...
1
vote
1answer
104 views

Brightness setting not working on Xubuntu 15.04 ( vivid vervet)

I recently upgraded from xubuntu 14.04 to 14.10 and then to 15.04 on Lenovo z580. I used to control brightness on 14.04 using xbacklight from command line. Now its not working. 15.04 also has a ...
0
votes
0answers
45 views

FGLRX drivers boots without backlight

Fglrx Not working after install (I know) HW : Asus K72j with AMD HD5470 laptop So, after installing the ATI drivers fglrx on my ASUS K72J laptop via CL my screen booted black. So at first I thought ...
0
votes
3answers
24 views

sound and brightness notification lost

i don't know what happened specifically but now i faced a sudden disappearance of sound level notification and also the brightness level notification and the notification style now changed to one that ...
0
votes
1answer
43 views

Brightness Controls Serious Lag Ubunut 15.04

I have a Asus N56v Laptop, recently upgraded to Vivid and now my Brightness Controls accessed via ("fn+F5", "fn+F6", "fn+F7") have a dramatic lag. I can wait 30 up to 120 seconds before the keystroke ...
0
votes
0answers
93 views

Screen brightness issue Toshiba Portège after 15.04 upgrade

I have a toshiba portège Z30-A-13P. I can no longer adjust my screen brightness after upgrading ubuntu to version 15.04 (kernel 3.19). The screen brightness (as well as the touchpad) didn't work ...
1
vote
0answers
161 views

Ubuntu 15.04, brightness setting reversed

I just have installed Ubuntu 15.04 (64bit, installed in EFI) on my Packard Bell laptop and the problem I am facing is really annoying : The brightness setting is reversed: Brightness 0% : black ...
1
vote
1answer
1k views

Message {1.079026} ACPI PCC probe failed; starting version 219

I am running Ubuntu 15.04 (Vivid Vervet) with 3.19.5-031905-generic #201504211114 kernel and GNOME Shell 3.14.4 on a Samsung NP370R4E laptop. When I boot up, I see [1.079026] ACPI PCC probe failed ...
0
votes
0answers
19 views

Can't Adjust Brightness In ASUS X401U

i have a problem with my Ubuntu 14.04. I installed it on my ASUS X401U and i can't adjust the screen brightness trough the Fn. key or system setting. i have tried some way like edit the grub file. but ...
6
votes
3answers
2k views

How do I permanently change the brightness of the screen?

On the previous versions the default screen brightness was perfect for me but on 11.10 the default brightness is killing my eye. I have changed the brightness like this level but after restarting ...
1
vote
1answer
16 views

Laptop Screen Flashing

i own a hp dv6-3080br laptop and its always been a pain in the ass to use with linux, the most stable system i could get running on it was ubuntu 14.04 with kernel 3.13. i recently updated it to 14.10 ...
0
votes
1answer
21 views

Disable faint of display Ubuntu 14.04

I want to know there is exist some way to disable faint of display brightness when I don't connected to energy network(I use notebook). I have already set on both pages Brightness and Supply to do ...
79
votes
16answers
66k views

Brightness is reset to Maximum on every Restart

The brightness of my laptop is reset to Max on every restart. I tried the solution provided at this website but had no luck. ...
2
votes
0answers
35 views

How do I stop the lock screen from dimming to black?

I've spent a ton of time searching for this on Google, and I still can't seem to find it. Please read fully before answering, because the majority of the answers I'm finding are about preventing ...
0
votes
0answers
19 views

How to configure ubuntu brightness control

I have a Sony VAIO Z laptop, and installed Ubuntu. Most of the stuff does not work and the battery drains very quick but most annoyingly the brightness control does not support the full range of ...
0
votes
0answers
37 views

Ubuntu 14.04 LTS having problem with Brightness and Touchpad hotkey

I've installed Ubuntu 14.04 on my IdeaPad Z570 Laptop. Initially, when the system is fresh, all hot-keys except the brightness control was working perfectly fine. I went through various solutions ...
0
votes
2answers
27 views

GUI tool to set the screen brigtness

What a GUI tool can I use to set the screen brightness? A simple explanation is welcomed
0
votes
1answer
21 views

Not able to log in through the Terminal or GUI log in screen

I have Ubuntu 14.04LTS installed alongside windows 8.1. Everything was working fine until I tried to fix the brightness issue on Ubuntu as given on http://itsfoss.com/fix-brightness-ubuntu-1310/ But ...
2
votes
1answer
2k views

Screen brightness cannot be changed after upgrade to 14.10

As the title suggests, I upgraded my Dell XPS 15 laptop to 14.10 and now the brightness is stuck at the lowest level. The fn+F4/F5 displays the brightness notifications but the brightness level of the ...
14
votes
4answers
16k views

How do you change brightness, color and sharpness from command line?

I am controlling my PC with SSH and scripting. How can i change the brightness, color and sharpness from command line? Try 1: failed $ sudo redshift -t 5000:5000 -g .5 Cannot list GNOME panel ...
1
vote
4answers
11k 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" ...
0
votes
1answer
6k views

atheros wireless ar9285 driver

I have been having problems with wireless on Ubuntu 10 and above, Mint 11 and above. The problem is in the driver for the wireless... I can see that there is no driver installed and yet it works but ...
4
votes
5answers
9k views

Cannot change backlight brightness Ubuntu 14.04

This morning I found that I cannot change the brightness of my Dell XPs 13 laptop's display anymore. I tried the following to change the brightness Use keyboard brightness keys Run the commands ...
0
votes
0answers
22 views

Problem with my screen and brightness buttons don't work

I have problem on my laptop and my screen was pixelated althroughout when i turn on my laptop. and also the brightness don't work at the same time. any suggestions?
1
vote
1answer
74 views

Unable to shutdown, restart or logout

I am unable to shutdown, restart or logout from my ubuntu 14.04 machine. The screen goes blank, but the system hangs, then the fan begins to run fast. I have to turnoff the laptop by pressing and ...
1
vote
1answer
4k views

Fn keys for Brightness not working on Toshiba Satellite L755

I am running Ubuntu 12.04 and I love it! The only problem is the keys for my brightness, F6 and F7, does not work when I am on battery power or AC power. It randomly works after I am idle for a while ...
0
votes
0answers
41 views

14.04: Brightness control worked fine but completely disappeard after ubuntu update!!!!!!!! wifi is gone also

what the hell!!!! my eyes are going blind as i lay in my bed.. please help.. how should i explain this.. brightness keyboard keys are not working and when i go to system settings and then ...
1
vote
1answer
28 views

require help regarding brightness adjustment [duplicate]

i adjust the brightness to a lower level after logging in but this goes back to full after restarting. is there a way to stop this from happening?i am new to ubuntu and did a clean istall of ubuntu ...
0
votes
1answer
177 views

brightness level saving problem

I am using Ubuntu 14.04 and I want to save my brightness level, because every time when I start the computer the brightness level is maximum. thanks, Kolyo ls -l /sys/class/backlight: total 0 ...
2
votes
2answers
62 views

Brightness control is not working on Ubuntu 14.04

I am new to Ubuntu, I installed Ubuntu 14.04 on my Sony Vaio VPCEH38FN Laptop. I am not able to change the brightness in my system. In my system Fn+F5 and Fn+F6 buttons are used to change the ...
0
votes
1answer
25 views

How can I delete files or folders created by Nano editor?

I've searched a method to change the brightness of my laptop display. I saw one article on this forum and followed the instruction like below (under the line) written by Serge (user name). I ran ...
0
votes
0answers
128 views

How to fix brightness on Ubuntu 14-04 LTS installed on macbook pro 2012 13"

I installed Ubuntu 14.04.02 as dual boot in a macbook pro 2012 13 I noticed that all function buttons works but except those that regulate the brightness of the screen.How do I fix this problem?
0
votes
1answer
11k views

Unable to adjust brightness in Ubuntu/Xubuntu/Lubuntu13.04

I've recently upgraded to Xubuntu 13.04 and noticed that I'm unable to use the brightness keys to adjust the brightness of my screen. I've tried just about everything this thread suggest and I'm still ...
1
vote
0answers
113 views

Can't change screen brightness running Ubuntu 14.04LTS on Samsung NP510R5E

FIXED! After DBANing my hard drive I installed Ubuntu 14.04LTS and quickly realised I've been unable to change screen brightness. This isn't too much of an issue when AC power is plugged in as the ...