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Questions tagged [backlight]

The tag has no usage guidance.

0
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0answers
10 views

Alienware 17 (laptop) screen very dim when using hdmi input

I like to use my old alienware 17 laptop screen as a portable monitor, however whenever i am using it in hdmi-input mode it becomes really dim. I've scoured the internet and have not found a solution ...
0
votes
0answers
13 views

Screen Backlight not working

Yesterday, I was using my laptop while sitting on my desk. I decided to keep it on my lap so that I could plug it in while using. To accommodate my laptop and me I ha to turn around a bit which meant ...
-3
votes
2answers
113 views

is the backlight in older monitors worrysome?

is the backlight in older monitors worrysome? I'm using a flatron w1934s as my second monitor and I heard that there's some Mercury and I'm afraid of potential leakage. The image has been flickering ...
27
votes
1answer
4k views

Dell XPS 13 9370: screen brightness changes based on window contents

On my new Dell XPS 13 9370, it seems that the display backlight brightness is adjusted based on the brightness of whatever's on the screen. For example, say I have Sublime Text open with a dark theme,...
0
votes
1answer
84 views

Backlight Bleeding , Flash lighting on Brand New Asus Laptop

I bought an ASUS VivoBook E12 E203NAH-FD057T (Intel Celeron Dual Core N3350 / 4GB / 500GB / 11.6" HD LED just three days back. I noticed that it has a severe back light bleeding / flashlighting issue ...
3
votes
0answers
87 views

Laptop's backlight turns on with Integrated GFX, but not Discrete GFX

I have an MSI GT72 from 2014. A few weeks back, the MXM GTX980M died. Since then, I have been able to use the computer just fine with only the integrated GPU. Today, we installed a new MXM GTX980M. ...
1
vote
0answers
101 views

Cannot change brightness of Dell backlit keyboard

I'm using a Dell Inspiron 5547 laptop --and the usual way to change the brightness of the backlit keyboard is to use the F10 key. I recently replaced my laptop keyboard, and ever since I'm not able to ...
0
votes
1answer
816 views

My laptop screen dims when a dark image is shown onscreen

I have a Windows 10 Dell XPS 15 (9530) laptop which is working fine except for the fact that when plugged in (not on battery) the screen dims whenever I view a dark image/content on the screen. Note ...
1
vote
1answer
10k views

Dell Inspiron 15 7000 Gaming (Red): can I change the color of the backlit keyboard?

I just received a Dell Inspiron 15 7000 Gaming laptop. It's awesome so far! I'm just really confused on how to change the backlighting on the keyboard. It's default is red. I like the red, but on the ...
0
votes
0answers
89 views

A dark shadow appears on my laptop's LCD display after I turn it on

A shadow appears on the bottom of my laptop's display, after I turn it on. I don't know if pressing around aso. applies to my issue and I don't want to damage it further, initially it works. The ...
0
votes
1answer
37 views

Replacement of laptop screen, back light issue

I have laptop with broken screen. When I accidentally broke the screen it shattered with cracks, and everything went white with some colorful stripes but after some minutes screen started to flicker ...
3
votes
2answers
691 views

Turn off keyboard backlight when shutting down Linux

I bought a backlit keyboard a few days ago, and I have a problem with it: When I shut down my PC from Linux, the keyboard backlight stays on after the PC turns off, but when I shut down my PC from ...
0
votes
2answers
6k views

Change Keyboard backlight timeout time

How to increase the timeout second/time in Windows 10. There is no option in control panel > Hardware & Sound > Keyboard. I have also checked the windows mobility center no keyboard option ...
1
vote
2answers
301 views

ThinkPad X300 - no backlight issue

I got a ThinkPad X300 on a flee market, it's great but there is one problem - the screen is extremely dark because the backlight doesn't turn on. I removed the ThinkPads screen frame cover and took ...
1
vote
0answers
1k views

Can't set backlight brightness

I'm trying Arch Linux and I'm stuck with this problem: I can't set the brightness of my laptop display. I read https://wiki.archlinux.org/index.php/backlight and other troubleshooting pages about this ...
1
vote
2answers
1k views

Screen backlight function keys in Arch linux

Recently I installed Arch on my ASUS UX31LA. Most of function keys works fine except F5 and F6 (screen backlight keys). I tried to do some research on arch wiki, but couldn't find any page for my ...
0
votes
1answer
272 views

Keyboard backlight not working: Acer Aspire R13 R7-372T

I recently bought an Acer Aspire R13 R7-372T Laptop. I noticed that the keyboard backlight was never on. I tried the keyboard shortcut to increase the backlight brightness but to no avail. I tried ...
1
vote
1answer
8k views

Can I change the keyboard backlight?

I recently bought a Dell Inspiron 15 7559. It has a backlit keyboard, with 3 brightness settings. Is it possible to customize the colors, or can it only be white?
0
votes
1answer
3k views

turn on/off backlit “xset led 3” with “scroll lock”

i'm buy a mechanical keyboard for my computer, i'm using kali linux rolling 2016.2 i'm forget to read the compatible driver for my keyboard.and that's only compatible in windows 10 and mac. after i'm ...
0
votes
1answer
548 views

Open SUSE missing kernel-devel headers

I am trying to make a custom API for maintaining the backlight of the computer, however, as the examples suggest, the "backlight.h" is to be included, and there is no such a file on my Open SUSE ...
2
votes
3answers
2k views

Setting PWM Backlight brightness on boot

I am working with Linux version 3.10.17, using device tree to boot the kernel. In the device tree, I define a "pwm-backlight" compatible driver. The driver defines a variable, default-brightness-...
6
votes
2answers
6k views

Laptop dimming display on dark backgrounds

My Acer laptop running Windows 10 has a very annoying feature: when running on battery, the LCD backlight dims gradually when displaying a dark screen and brightens gradually when displaying light ...
1
vote
0answers
91 views

Asus N76VM backlight keyboard doesn't work

so i just bought an asus N76VM and the backlit doesn't work, i upgraded to win10 an re-installed all the drivers (atk package, keyboard filter...) and still not working, the keyboard doesnt light up ...
0
votes
1answer
146 views

Samsung Series 7 backlit keyboard issue on Windows 8

I upgraded to Windows 8 and the keyboard back-light doesn't work. The mode of the laptop is np700z7c-s02uk
0
votes
1answer
318 views

Asus laptop, keyboard backlight not working

I have a N56JR Asus laptop and I upgraded it from win 8.1 to win 10 (using the automatic procedure, not a clean install) keyboard backlight doesn't work anymore. I tried uninstalling the ATK package ...
3
votes
1answer
752 views

Why do laptop manufacturers turn off only the backlight not the whole LCD?

I have two laptops, one Macbook and one Lenovo. If I press the Brightness Down button repeatedly, eventually the backlight is turned off completely. The Lenovo also has a shortcut key to turn off the ...
3
votes
2answers
14k views

Samsung Series 7 backlit keyboard issue on Win 10

After installing Win 10, my Samsung Series 7 backlit keyboard won't light up. Fn+F2/F3 won't work and neither will Fn+F1 for Samsung settings. I tried installing the Samsung software controlling this ...
1
vote
0answers
63 views

Laptop Backlight turms off after instaling intel vga drivers ( windows )

I am currently using Acer aspire 5745 and running on windows 7 Ultimate the issue is that when i install vga driver ( intel ) ( downloaded from official acer site ) when the laptop restarts , the ...
1
vote
0answers
41 views

How can I tell my Linux installation to handle the brightness ketys with ACPID?

I want to manually control my brightness keys making a event on /etc/acpi/events. Only that there is a problem, when I press the brightness up/down keys, the brighness changes (I think that the BIOS ...
0
votes
1answer
159 views

Backlight inverter and newer laptops?

My notebook, an Asus model X44H, got its screen broken. I replaced it with another screen and, although not the same model, it worked and all was fine. I forgot the charger and it lost its energy, so ...
0
votes
1answer
99 views

Why is the display on my Acer Aspire 3820T-6480 darker than usual?

I have an Acer Aspire 3820T-6480 running Ubuntu 14.04 with an external monitor. I just restarted it after some updates and after the restart I noticed that the built-in display—AU Optronics (Model No: ...
5
votes
2answers
2k views

Is there a way to disable all keyboard backlighting on an HP Spectre?

I recently purchased a laptop with some unfavorable backlighting behavior. The F5 key is permanently backlit at all times. I was told that there is no way to turn off the F5 light. But is there a ...
1
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0answers
208 views

how to turn on backlight in ZERO zr-3806 keyboard?

ZERO zr-3806 I have that keyboard and can't turn on backlight .. did the searching and nothing .. the thing is it has no fn key which other keyboard I found in the search had and they're to be turned ...
5
votes
1answer
1k views

Desktop LCD monitor which allows backlight to be controlled in software

I would like to know if there is any standard or feature which allows desktop LCD monitors backlight control setting in software. I would like to know what I should be searching for. This is a pretty ...
0
votes
2answers
135 views

Is it possible to change screen backlight trough hardware means?

Given that after several days I didn't manage to change the brightness through software means (askubuntu.com/questions/577539/dell-chromebook-11-unable-to-set-backlight-and-sys-class-backlight-empty ...
3
votes
2answers
16k views

How do I turn off the keyboard backlight on my Lenovo Y70?

I'd like to turn off the keyboard backlight on my new Lenovo Y70 laptop. Is there a built-in way of doing this? Or is there a way to physically disconnect the backlighting from the power supply, if I ...
3
votes
1answer
567 views

Precise backlight control on windows

My laptop screen is too bright to look at in the dark even on minimum backlight setting. On Linux, I usually solve the problem by writing "1" (or the lowest value that does not turn backlight off ...
0
votes
1answer
2k views

CM Devastator Keyboard - Turn On Backlight, Turn OFF Scroll Lock

So I recently purchased a CM Devastator keyboard, which has a LED backlight. The catch is, that the backlight is toggled with the ScrollLock key. So you have to have ScrollLock "On" in order to have ...
2
votes
1answer
1k views

Minimum brightness level is too low and totally turns off backlight

On my Dell Latitude E6400, the minimum brightness level seems to be set to an incorrect and way too low level; the lowest brightness setting (both via the Fn+Up/Down keys and the control panel/...
1
vote
2answers
2k views

Set backlight brightness on boot on a ThinkPad T440s runing on Arch

I recently bought a new Lenovo ThinkPad T440s laptop and installed Arch Linux on it. Most things worked out of the box. One minor problem, among few others, is with the backlight brightness. I can ...
0
votes
1answer
2k views

Turn on Laptop backlight without a keyboard shortcut

I recently installed the latest drivers and my screen backlight turned off. The problem is that my Fn-F7 key combination doesn't work, so I can't turn it back on. I can see my screen at night if I ...
0
votes
1answer
277 views

Pixel Qi screen operation

I just installed Pixel Qi screen (PQ101WX01) on my Acer Aspire One D270, but I can only control dimming of the screen through OS. Dimming doesn't make it more readable in the sunlight, and going to ...
0
votes
3answers
376 views

Pixel Qi screen operation

I just installed Pixel Qi screen (PQ101WX01) on my Acer Aspire One D270, but I can only control dimming of the screen through OS. Dimming doesn't make it more readable in the sunlight, and going to ...
3
votes
2answers
674 views

How do I disable the mouse wheel backlight on a Posturite keyboard?

I recently began using a Posturite Number Slide Arch Keyboard (Model EZ-2018) on my Linux workstation. It came with few instructions; none of them dealt with keyboard function, but rather with ...
0
votes
0answers
195 views

Backlight flashes quickly and then turns off on boot (and stays off)

On an Acer Aspire 47302 the backlight is off most of the time. When any of the following things happens, the backlight flashes on briefly, changes levels a few times, then turns off. The computer ...
2
votes
0answers
994 views

Why do my network interface and powered-off backlight consume too much power in powertop?

I have an ASUS n550jv laptop. Currently, the wifi is off, the ethernet is active, and the display is completely off (using an external monitor). Yet, in powertop I see the following: The battery ...
1
vote
1answer
341 views

Forcely Turn on laptop screen backlight

I have a laptop with hybrid graphic card. As it is a bit old (2010) the support for it totally stopped, and i can't install the official AMD graphic card drivers as it complains that for notebook they ...
0
votes
1answer
34 views

How to fix the backlight cable into its place?

I took apart my laptop and found out that if I push the cable connector down with my fingers it works fine. I tried to twist the screws as tightly as I can (without ruining them) but as I move the ...
0
votes
1answer
550 views

Backlight brightness on Mint 16 (GeForce 330M)

I have Dell Vostro 3700 with GeForce 330M and use the nouveau driver. I have Mint 16 with Cinamon. I want to be able to change backlight with keyboard shortcuts. I did some changes to kernel ...
0
votes
0answers
57 views

Back light not workng, replaced laptop LCD, next step?

My daughters laptop LCD went dark a while back, in a dark room you can see that the screen wants to work but will not. I am familiar with laptop repair, have replaced MANY screens. It seems I have ...