Questions related to screen brightness.

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1
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0answers
86 views

Turning Backlight on on external Monitor

I have a lenovo laptop running xubuntu smoothly. I plugged in a dvi monitor with a hdmi to dvi wire. The display works perfectly for two seconds then the backlight turns off. I cant find a way to ...
0
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1answer
157 views

Very low brightness in setup

My screen is in very low brightness during setup, and can barley see using a torch. Im new to ubuntu and using 13.04 so please make it simple thanks. Laptop: Acer Aspire 5336 Model: PEW72 Shared ...
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6answers
7k views

Installing Ubuntu 12.04 on a Lenovo G500

I recently bought a Lenovo G500, and had a rather entertaining time trying to get Ubuntu installed. Since it came with Windows 8 installed it turned out to be an unexpected challenge. For anyone ...
0
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0answers
31 views

Could't adjust brightness on my lenovo y500 [duplicate]

In terminal: $ gksu gedit /etc/default/grub Code: # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: ...
2
votes
1answer
180 views

Cannot change brightness of my laptop

My laptop is a DELL 3521 with dual graphic cards, which usually cause some problems, and I have switched off the AMD Radeon card. Now, when I want to turn the brightness down by dragging the ...
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0answers
49 views

Brightness Increases to Maximum Automatically. How to fix it?

Every time I leave my system idle for a few minutes, the brightness increases to maximum, even when I read an article or a book, it turns to maximum in a few mins, I have to then reduce it everytime ...
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0answers
10 views

How do I adjust the screen brightness on lenovo g580 in ubuntu 13.04 [duplicate]

i'm using ubuntu 13.04 in my lenovo g580 i3 nvidia ram 4gb . when i press d function keys icons are displaying at top right corner but display brightness doesn't change. please help
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2answers
199 views

Why do not the brightness of the screen?

Brightness control problem Show but it does not work I have HP Pavilion DV6 I have Ubuntu 13.04 I want to control it through a software. image ...
0
votes
1answer
105 views

Brightness is too much and I can't control it

I have installed brightness indicator, but there is no benefit as there is an error popping out: no backlights were found on your system. I am using a desktop. And the brightness and lock setting is ...
0
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0answers
191 views

Brightness control Ubuntu 13.04 x64 is not working

Brightness control is not working on Ubuntu 13.04 64-bit Monitor: Samsung SA100 LED Processor: Core i5-4570 Video Card: Integrated Graphics Intel HD Graphics
0
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0answers
160 views

unable to reduce screen brightness in Sony vaio VPCEH35EN

I am unable to reduce screen brightness of my Sony vaio VPCEH35EN laptop. I am using ubuntu 13.04 along with windows 7 home basic. in windows i can able to reduce but in ubuntu its not possible. ...
0
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1answer
187 views

Backlight controls stop working once X starts

I'm using a Lenovo Thinkpad X120e with Ubuntu 12.04 LTS 64-bit and a Gnome 3.4 (gnome-shell) desktop environment. I have installed the latest proprietary AMD drivers (From their website) for the AMD ...
1
vote
1answer
237 views

How do I fix the the brightness controls on a Samsung RV520?

I'm running Ubuntu 13.04 on my Samsung RV520 with Nvidia GT520M but it looks like my screen's brightness is set to a value close the minimum! Even though I can see the brightness bar increase or ...
0
votes
1answer
190 views

Screen brightness keys not working

Am using a dell n4010 laptop with Ubuntu 13.04 installed in it along with windows 8(dual boot). The screen brightness keys are not working.Does anyone have the answer
0
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0answers
82 views

Set brightness in Ubuntu 13.04

When I set brightness to 50% in Ubuntu with xbrightness and restart, my brightness still is 100%. Can anyone suggest a way of making this setting stick?
0
votes
1answer
474 views

How to hotkey the brightness settings

I want to hotkey certain often used brightness settings under ctrl+ F7 through F10. I can already change it with the therminal. To be able to do this I ran the following command chmod 666 ...
1
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0answers
86 views

can't adjust screen brightness control in ubuntu 12.04? [duplicate]

My laptop is lenovo g580. I have searched for the solution. I have tried xbacklight. please help
0
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0answers
90 views

Does laptop brightness change on battery (like Windows)?

I've been looking for a new laptop, and lots of reviews of the gaming machines talk of the display dimming when on battery, and being unavoidable. Is this also true for linux/Ubuntu, or is it a ...
0
votes
1answer
296 views

How to fix ubuntu 12.10 brightness and lock icon

When clicking on the brightness and lock icon, the system settings just closes but never open brightness and lock.
1
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0answers
622 views

Can't disable backlit keyboard on Sony Viao, Ubuntu 13.04, 64bit

I need to turn off the backlit keyboard on my Sony Viao, with 64 bit Ubuntu 13.04. I'm prone to migraines, and the lights really bother my eyes. I've ried several posted solutions, none work. ...
0
votes
1answer
2k 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 ...
1
vote
3answers
2k views

Brightness control problem on acer aspire V5

I am running Ubuntu 12.04 LTS on new Acer Aspire V5. There is no other OS installed. I can not control the brightness of the screen using Fn+left and Fn+right keys. I tried to change brightness from ...
2
votes
2answers
2k views

Cannot change brightness setting using function buttons or using the brightness control bar on HP laptop

I faced this problem when I brought a new HP Laptop , hoping to install Ubuntu(Linux) but when i booted from a Live DVD the brightness was set at max and wouldnt be changed from the function keys or ...
0
votes
1answer
259 views

Lenovo T410 running Ubuntu 12.04 won't change brightness

Neither the Fn + Home or the Fn + End (brighter/dimmer) or using the GUI changes the brightness. I've looked up some possible solutions, all of which involve editing an obscure text file. None of ...
0
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0answers
103 views

I can't lower brightness on Ubuntu 12.04

I have installed Ubuntu 12.04 to dual boot with windows 8 but the only problem i am experiencing is that i cant lower the brightness setting, when i move the slide to adjust the brightness it doesn't ...
0
votes
0answers
259 views

Screen brightness of Dell inspiron 3521 and System Crash

The screen brightness of my Dell inspiron 3521 is changing but if mozilla is running with YouTube, then the system crashes. What should I do? previously I used these instructions Screen brightness ...
0
votes
2answers
380 views

Brightness doesnot work in ubuntu 13.04

I have installed Ubuntu 13.04 in my Sony Vaio laptop. When I am reducing the brightness it is not working. The brightness remains 100% all the time even when I am reducing it through System ...
0
votes
1answer
264 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?
1
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1answer
569 views

My brightness control buttons are not working on my Packard Bell netbook

I have a Packard Bell DOT S netbook. First I installed Ubuntu on it. I noticed that I couldn't use my brightness control buttons (F11 F12). I saw the little bar like it is changing its brightness, but ...
0
votes
1answer
602 views

Brightness control doesn't work Acer Aspire 5738 13.04

I have tried many suggested solutions modifying, still nothing works. Ubuntu 13.04.Acer Aspire 5738. Please help its very annoying and frustrating can't control a basic function. Thanks
0
votes
1answer
105 views

writing a script, making it executable then assigning it keys

I have a Samsung np700z5a and have managed to get most features working but would love to get the keyboard backlight keys working. I have tried several methods including through the terminal. I have ...
0
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0answers
124 views

When Firefox loads, backlit brightness resetting to max

For an example, when I set the backlit brightness to 50% in Ubuntu 12.04 and then start Mozilla Firefox, it will reset the brightness to 100% and starts Firefox. However the brightness slider in the ...
0
votes
1answer
384 views

Screen turns black when lowering brightness

I have recently installed Ubuntu 12.04 on my Lenovo Thinkpad Edge E535 laptop along with Jupiter for power saving. And every time I use Fn key to alter the brightness, the screen turns blank and then ...
1
vote
1answer
116 views

Brightness can't be fixed

I have problem with brightness on Ubuntu 12.04. Whenever I restart or turn up my HP ProBook 4515s laptop, brightness is set on the highest level of brightness. Please help me to solve this problem :) ...
1
vote
1answer
76 views

How can I turn down the sensitivity of my brightness slider?

How can I make the brightness change in smaller increments? I red this before (How to increase the screen brightness control sensitivity?), but I didn't find the solution to help in my case. My ...
0
votes
0answers
411 views

Unable to adjust backlight on Asus UL30vt neither with fn keys nor with xbacklight -set

I recently installed ubuntu 13.04 (kernel 3.8.0.y) on an older Asus UL30vt laptop. This is a switchable graphics (optimus) laptop with a intel onboard graphics card and an Nvidia Geforce G210M. I am ...
0
votes
1answer
101 views

Ubuntu 13.04 Dark Screen on Live Pendrive

I have a 2-3 year old gateway laptop that I wiped the hard drive to. I tried installing Ubuntu 13.04 from a DVD and that didn't work, but that isn't the question I'm asking. I am now trying to ...
4
votes
1answer
2k views

How to link a custom keyboard shortcut to a bash script in Ubuntu 13.04?

As an Ubuntu 13.04 user I had myself as well various problems and incompatibilities with this newest version of Ubuntu. One of these is that the Brightness bar has suddenly disappeared from the ...
0
votes
1answer
296 views

How can I avoid maximum brightness settings upon every boot?

Whenever I boot Ubuntu the display and keyboard brightness are reset to maximum. Since I almost never need such high brightness settings, every boot includes an aftermath of excessive key pressing. ...
1
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0answers
14 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?
0
votes
0answers
19 views

Login screen brightness glitch(?)

When I boot up my computer and it comes to the screen where I type my password to log in, my laptop's brightness setting always starts on the lowest brightness. Am I able to correct this?
-1
votes
2answers
184 views

How do I change the brightness in Compiz?

After i set the option "Cube Reflection and Deformation" in Compiz, when i try reduce the "Opacity While not running" the screen stay darker. I wanted to post a picture but I am unable to do so due to ...
0
votes
1answer
572 views

How do I get the brightness keys working on an Acer AspireOne D255?

I've got a little problem trying to set brightness on a AcerAspireOne D255 on which I freshly installed Xubuntu 13.04 (32x)... brightness seems to play its own way: it doesn't respond to my inputs and ...
1
vote
0answers
176 views

ubuntu 13.04 issues with screen and suspend

I installed ubuntu 13.04 yesterday on my sony vaio vpceg18fg(http://www.sony-asia.com/product/vpceg18fg). There are two problems. 1) I cannot increase/decrease screen brightness 2) after waking from ...
0
votes
1answer
411 views

How to make FN keys change brightness on Gateway m7315u?

I know this not a new issue concerning brightness, however, I am anxious to get this working. I added acpi_backlight=vendor to the boot parameters which allows me to change the brightness using ...
0
votes
1answer
567 views

Adjust screen brightness doesn't work Xubuntu 13.04 xfce4 keyboard shortcut fn+f2/f3 Toshiba L840 laptop

Can't adjust the screen brightness using keyboard shortcut (fn+f2/f3). Running Xubuntu 13.04 w/ xfce4-power-manager on a Toshiba L840 laptop. Tried editing the grub file w/ ...
0
votes
0answers
125 views

Ubuntu 12.04 screen brightness flickering after software update

I have a Dell latitude E6410 laptop with Ubuntu 12.04. After installing few software updates last friday, my screen started flickering the brightness. It has a nvidia graphics card in it. If someone ...
0
votes
1answer
1k views

Disable automatic screen dimming

I currently have three computers running Ubuntu. With two of them, If I don't touch the mouse or keyboard... nothing happens. However, with the third, the screen gets dimmer after about 60 seconds of ...
0
votes
0answers
260 views

Unable to use function keys for screen brightness

I'm on Toshiba Satellite L830-135 with AMD Radeon 7550M. Using Ubuntu 13.04 64-bit fresh install. I know there are many similar questions. I've tried almost everything, many variations of the ...
1
vote
2answers
1k views

Ubuntu 12.04 Backlight Problem, Function keys not working

I have ubuntu 12.04.2 LTS AND i recently updated my system. There was a kernel update also. I tried several solutions on net. Like This , this and none of them worked for me. I put that ...