Questions related to screen brightness.

learn more… | top users | synonyms

0
votes
0answers
23 views

Brighness and Lock now working

I installed xscreensaver but this ended up not being what I needed. So I removed it. But now My system wont lock the screen like it use to. The settings are set to lock after 1 min and ask for a ...
3
votes
1answer
284 views

screen brightness

Regarding the below topic please tell me is that possible to do it without adding any script to the startup. brightness of the screen So, I could use the function keys to adjust the screen ...
2
votes
1answer
139 views

brightness of the screen

Every time after I restart I have to enter this in the terminal to set the brightness: xrandr -q | grep " connected" xrandr --output LVDS --brightness 0.5 Could someone tell me if there is there ...
0
votes
1answer
313 views

Remap Fn+F3 from XF86Sleep to XF86MonBrightnessUp

I have got a new laptop which is Toshiba Sattelite Pro R50 and I've installed Linux Mint 17.1 on it. After a while it turned out brightness buttons are mapped incorrectly. Fn + F3 is mapped to ...
0
votes
1answer
202 views

Screen Dimming Changed After Upgrade to 15.04?

Up until this week I was able to dim my laptop to a very dim setting, barely any brightness at all, which I liked at night. After upgrading to 15.04, the maximum dim is way brighter than it was ...
2
votes
1answer
771 views

14.04 on Asus GL552JX: Fn+F5 and Fn+F6 Brightness Problem

I've recently installed Ubuntu 14.04.2 LTS on my ASUS GL552JX. The one that always bugs me is the Fn+F# button functionality. This time, all Fn+F# button combinations work except for Fn+F5 ...
1
vote
0answers
114 views

Backlight control broken on 14.04 on Lenovo U310

I'm unable to change the backlight brightness under 14.04. habefaro@habefaro-Lenovo-U310:~$ uname -a Linux habefaro-Lenovo-U310 3.16.0-34-generic #47~14.04.1-Ubuntu SMP Fri Apr 10 17:49:16 UTC 2015 ...
1
vote
0answers
239 views

Special Function Keys are not working in Ubuntu 14.0.4.2 LTS

Volume (+/-/Mute), Brightness (up/down), Disable Webcam, Mute Microphone and Projector Function keys are not working (when used through laptop keyboard) but Next, Pause/Play and Previous keys are ...
0
votes
0answers
67 views

How do I can reset brightness settings to default by Live ubuntu?

I tried to set my machine brightness via this link (How do I set default display brightness?). After rebooting, I haven't any screen now. I use ubuntu 14.04, Can say me any body that how do I can set ...
0
votes
1answer
88 views

My laptop brightness doesnot be darker with function key

My laptop has intel hd graphics 4400, and it doesn't work well on ubuntu 14.04 , so I upgraded to ubuntu 15.04. It works fine, but i cannot change my brightness. The funny thing is that i can change ...
0
votes
1answer
125 views

How to Disable Ubuntu Phone “auto dim” function?

Is there a way to disable the auto dim function of the Ubuntu Phone (14.10 r22)? Even though I can disable the auto-brightness function and set the screen timeout to 10 minutes (or never) the screen ...
0
votes
1answer
66 views

My brightness controls aren't working (Ubuntu 14.04), how to fix?

I use either the buttons or the ui but the brightness doesn't change. What do I need to change to get brightness working? I'm using a Toshiba Ultrabook in case it is relevant.
0
votes
1answer
241 views

Disable Fn-keys brightness change on Dell Inspiron E1405

I've got an old Dell E1405 which smoothly runs 14.04, with one caveat that is. When I press the Fn button with arrow-up or arrow-down, the brightness jumps in huge steps. Is there a way to disable ...
3
votes
1answer
481 views

Using /etc/rc.local to turn off keyboard backlight no longer working in 15.04

I have an Asus laptop, and the keyboard backlight comes on full at startup. I formerly used the instructions here to issue a sudo command to turn it off. Basically, the steps were: gksudo gedit ...
0
votes
1answer
87 views

how to make britness control work on ubuntu 14.04 with nVidia graphic card?

I have a Sony vaio VPCEJ equipped with an Nvidia Gforce 410m with cuda ,currently I am under ubuntu 14.04 and using the Nouveau Nvidia driver for my graphic card because I found it to be the most ...
3
votes
0answers
166 views

How to link brightness button to correct brightness script

I recently upgrade my Ubuntu from 12.04 to 14.04. My laptop has always had incomtibility issues between the brightness button and the actual brightness set up. In 12.04 I had fixed the problem by ...
1
vote
2answers
3k views

How to Adjust Brightness in Lubuntu 15.04

I just installed Lubuntu 15.04 on my Toshiba Satellite laptop and can't figure out how to adjust the brightness. I can't find it anywhere and have been looking at other people's questions for an hour ...
0
votes
2answers
1k views

Why do I have two drivers for my display?

I have bought a new laptop recently it is the Asus K555LD and I have ubuntu 14.04 installed and up to date. One of the problem I faced is finding the driver for my nVidia GeForce 820M. After some time ...
1
vote
0answers
344 views

Laptop with Ubuntu Mate 15.04 screen dimming after 10 seconds

I watch movies on Youtube, Popcorn or XBMC and after 10 seconds when I have my laptop disconnected from power the screen dims. I know that there is an option in dconf-editor for longer timeout but ...
0
votes
1answer
56 views

Brighness control problem

I'm using 14.04LTS. The function keys that control brightness have been reversed such that when I press Fn + right arrow key, the brightness reduces and when I press Fn + left arrow key, the ...
0
votes
1answer
486 views

Kubuntu 15.04 : Brightness controls not working vs 2 graphic cards?

Just installed Kubuntu 15.04 on my ASUS X555LD (i3) to try out KDE 5.2, and I'm having a few issues. Brightness controls are not working using fn+F5 or F6 I'm a bit confused. My laptop ships with an ...
2
votes
0answers
179 views

Error request power-well from i915 ( Lenovo L440 - Ubuntu 14.04)

I'm using Ubuntu LTS 14.04 on my Lenovo L440 and until yesterday I hadn't experienced any problems, when I started my laptop and received the error message: [ 3.331621] hda-intel Error request ...
0
votes
1answer
314 views

Screen dimming doesn't work (Ubuntu 14.04 LTS)

I have an Asus laptop (G53SW), on which I installed Ubuntu 12.04 (because I had it laying around) which upgraded itself to 14.04LTS. For the most part it works well but the one annoying issue is that ...
4
votes
1answer
1k views

Ubuntu 15.04 brightness doesn't work

brightness on my Lenovo-IdeaPad-P400-touch graphic Intel® Ivybridge Mobile os type 64-bit Ubuntu 15.04 doesn't increase or decrease after updating from 14.04 please help!!!
0
votes
3answers
304 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.
2
votes
3answers
843 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, ...
1
vote
0answers
64 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
49 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: ...
0
votes
1answer
65 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
315 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
491 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 ...
2
votes
1answer
4k 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
1answer
290 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
3answers
196 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 ...
3
votes
0answers
586 views

Screen brightness issue Toshiba Portégé after 15.04 upgrade

I have a Toshiba Portégé 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 touch-pad) didn't work ...
0
votes
1answer
171 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 ...
1
vote
1answer
43 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
28 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 ...
2
votes
2answers
6k 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
1answer
94 views

Raise and lower screen brightness (both from menu and from keyboard)

I'm working on an Acer Aspire E15 with Ubuntu Studio 14.04 installed in dual-boot with Windows 8.1, and from Ubuntu I'm not able to modify the screen brightness, for two reasons. The first is that I ...
3
votes
0answers
296 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 ...
1
vote
0answers
227 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
89 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
2
votes
6answers
5k 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
108 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 ...
1
vote
2answers
480 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
32 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
510 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
1answer
165 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 ...
3
votes
0answers
2k 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 ...