Questions related to screen brightness.

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0
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0answers
11 views

Nvidia Brightness Control Not Working

I have an Acer laptop with Nvidia 520M. The problem is, the screen brightness isn't working. If I switch to use Intel display driver, the brightness can be controlled. I've tried all ways such adding ...
1
vote
3answers
217 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 ...
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votes
1answer
7 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 ...
0
votes
1answer
23 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.
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6answers
25k views

Make xconf configuration permanent

I edited the xconf file, and added this line to device section: Enable brightness control=1 Now I am able to adjust brightness, but after every restart the brightness setting change back to 100%. ...
0
votes
0answers
15 views

How to display correct keyboard backlight levels?

I have a DELL latitude E6420 running Ubuntu 14.04 LTS. When pressing Fn+right button, I am able to change the keyboard backlight (works good), but on screen, this on screen notification (notifyOSD), ...
0
votes
1answer
69 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 ...
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 ...
2
votes
1answer
42 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 ...
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0answers
9 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 ...
2
votes
0answers
35 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
1answer
83 views

How to stop screen from dimming when power cable is unplugged?

On HP Pavilion with Ubu 14.04 LTS, screen automatically dims when power cable is unplugged. I sometimes want to have maximum brightness, even when power cable is unplugged, for personal reasons. How ...
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
2answers
73 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 ...
1
vote
2answers
5k views

No back light on my Acer Aspire 5734z

I installed Ubuntu (12.04) on my Acer Aspire 5734z and the back light stopped working. I have tried the fix by editing the grub file posted on here a couple of days ago but that hasn't fixed it. I ...
1
vote
0answers
170 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 ...
2
votes
1answer
156 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!!!
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votes
0answers
9 views

screen brightness does not affect working hours

I have noticed that screen brightness does not affect working hours on battery of my laptop in any Ubuntu version I used so far (Ubuntu 12.10, 13.04, 13.10, 14.04, 14.10 and 15.04). I can increase ...
0
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0answers
33 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 ...
0
votes
2answers
62 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 ...
0
votes
0answers
28 views

Ubuntu 14.04 Black Screen after login (due to changed brightness?)

I have an hybrid switchable (AMD+Intel) PC, where I have both ubuntu and windows 7. Two days ago I was using Ubuntu, and since the battery was low I lowered the brightness. Usually, when I lowered ...
1
vote
0answers
71 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 ...
1
vote
1answer
2k views

Brightness adjustment not working on a Samsung NP300e5za0pin

Recently installed Ubuntu 12.04 on my Samsung NP300e5za0pin laptop . Brightness function is not fully functioning, and it will not bring down below 70% when I press the FN++Brighness. Brightness ...
0
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0answers
21 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 ...
4
votes
2answers
11k views

Brightness controls stopped working after update on a Samsung QX412-S01AU

Previously on my Samsung QX412-S01AU laptop I had been able to get brightness controls working, see this question: Brightness Hotkeys Only Slightly Work. After a recent automatic update, which ...
1
vote
0answers
25 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
58 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 ...
0
votes
0answers
39 views

No Brightness Control in Samsung Q430 Laptop EXCEPT with Bumblebee and Ubuntu MATE 15.04

Over the last few years, I've used various flavors of Ubuntu (as well as Mint and other forks) and up to Kubuntu 15.04, they don't ever seem to have functional brightness control on my Samsung Q430 ...
0
votes
1answer
37 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 ...
1
vote
3answers
157 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
2answers
55 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.
0
votes
3answers
154 views

Brightness Icon

Before Icon Brightness was appearing Hotkey (FN+Arrow Right) Whenever i wanted to change my brightness the icon appears on right side of Ubuntu. But then it suddenly stopped working, it was changing ...
0
votes
1answer
71 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
102 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 ...
1
vote
0answers
27 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
30 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
181 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
39 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
41 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
43 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
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
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0answers
15 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
369 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
61 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
32 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
77 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 ...
1
vote
0answers
271 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 ...