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-1
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0answers
21 views

SamsunG Led TV Cross Lines(Dotted )

Today, I realized there ise a dark and light cross lines (dotted) on my Samsung Led Tv's screen.. What are these and how can I get rid of these lines? Model Num: ue48ju6070u
2
votes
3answers
2k views

Why does my LED backlight laptop have a warning sticker about mercury?

I recently purchased an Asus UL30Vt-X1, which according to the specs has an LED backlight for the screen. It definitely appears to be an LED backlight, but the laptop still has a sticker that the lamp ...
0
votes
0answers
38 views

Why is straight-on viewing of inexpensive LCD screens no longer the best angle?

I bought several inexpensive tablets in a range of sizes. Each is from a different manufacturer. I have not taken them apart, but using a magnifying glass, I can tell that each screen appears to be ...
1
vote
1answer
29 views

Turn off LEDs on case fans?

I'm thinking of getting LED strips with adjustable colors for my PC. The problem is that I have several case fans, all with bright LEDs on them. I want to turn off these LEDs. What my first idea is is ...
3
votes
5answers
2k views

Does Lowering The Monitor Refresh Rate Save Battery Life?

Is this a myth or is this for real? I read about it all and was wondering if anyone knows if it is true or tried it yet. Going from 60Hz to 40Hz
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6answers
16k views

Why does my mouse's LED not turn off when I shut down the PC?

Why doesn't my optical mouse's red LED turn off after I shut down my PC?
0
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0answers
38 views

Caps Lock LED not working after xset (linux) notebook keyboard

in the past I always got things working myself, so I just signed up for this problem. I wanted to have 'knight-rider-style' notification with keyboard leds, so I played around a bit with xset on my ...
0
votes
1answer
3k views

My Philips Meridian 191EL2 LED monitor's brightness resets to 90 on power up

It is the inbuilt monitor menu. It just doesn't save what I set. How can I control the brightness from OS. I am on windows 7. nvidia xfx 9500gt graphics card installed. Thanks for help.
3
votes
3answers
7k views

LCD/LED screens; how color affects the power consumption?

I have read on web, for CRTs black color would reduce the power consumption of the monitor but for LCDs it's the white color that reduce the power consumption. It says "The way LCD's produce black is ...
1
vote
2answers
911 views

How do I turn off MagSafe light?

When I go to sleep at night, the two green lights (emitting from both sides of the MagSafe connector of my 13" MacBook Air's power adaptor) light up my whole room. How do I turn these off? I ...
0
votes
0answers
173 views

Increasingly growing vertical lines on my laptop screen (Dell Inspiron 7520 SE)

I've had these 2 vertical lines since yesterday. Their length have doubled since then ! Would someone please help identifying the problem and the solution ? I've had this laptop for around 2 years now ...
1
vote
1answer
42 views

Pink LED on case with high processing C++ program

I have written a very intensive program in C++ that should loop on some code for a quite long time. I can't explain why, after few minutes, the program stops working (I don't see any output) and a ...
1
vote
1answer
1k views

How to stop power light on PC from blinking when in sleep mode? [duplicate]

I regularly put my PC into sleep mode. Unfortunately the power button LED blinks every second and it's extremely bright blue which makes sleeping in the same room somewhat challenging. I have resorted ...
1
vote
1answer
118 views

Is there a conprehensive guide on how to take a LED display apart? (ant stuck inside) [closed]

The ant is not on the very first layer. I thought about taking it apart but I haven't been able to find something with a detailed description on how it is done.
0
votes
2answers
2k views

Can you disable the light up buttons on the HP HDX series laptops?

I'm intrested in buying a laptop from the HP HDX series, but I have one concern. As you can see below, they have touch sensitive buttons above the keyboard which are lit up. I cant help but think how ...
0
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0answers
31 views

notebook asus x551ma - moire pattern takes place - how to reduce effect on linux

I just faced a strange issue with my notebook asus x551ma LED and LCD (the Moire Pattern) which is quite good described on wiki pages; Some users provide "how they handle the effect for their ...
0
votes
1answer
177 views

Editing /sys/class/leds/phy0-led/ configs

I am trying to configure LEDs on my laptop running Xubuntu 14.04. I found out that there are some configs that affect LED behaviour, located in /sys/class/leds/phy0-led/. There are 3 relevant files: ...
3
votes
5answers
6k views

How to turn on/off leds by terminal?

I would like turn on/turn off some of my leds running a command on linux. I use Ubuntu 12.04 LTS. I tried xset led named "Scroll Lock" xset led named "Num Lock" xset led 2 (this is the ...
0
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0answers
149 views

Samsung 18.5" monitor showing coloured line bottom of the screen

I recently(about 2 month) bought a Samsung 18.5 inch(MODEL S19D300) monitor from Amazon.in. All was working fine till today.But today when I Started my PC , it is showing colored line about 3-4inch ...
-2
votes
1answer
223 views

Connect an RGB LED strip over USB [closed]

I am building a PC and wanted to do custom lighting with an RGB LED strip. I could connect an Arduino to one of the internal USB headers but decided that I wanted to try and connect the power to molex ...
1
vote
1answer
3k views

Which voltage does the Power-On/Status and the HDD activity LED connectors of a motherboard deliver?

The case I want to use does not have an option to connect the power or HDD activity LED. Therefore I would like to use some 3V LEDs I already own. However, since they are only for 3V, I would like to ...
0
votes
0answers
35 views

Dell 5523 very dim screen

I've got a Dell 5523 15z laptop recently from my friend. Unfortunately he had spilled juice on it. When I got it was not turning on. After few days I'm able to boot it in windows 8.1 The problem is ...
2
votes
2answers
593 views

Flashing LEDs on 101-key Unicomp PS/2 keyboard

Background Purchased a Gigabyte motherboard (GA-78LMT-USB3) with a new computer about a week ago. The keyboard is a Unicomp 101-key PS/2 keyboard, which is what I am using to type this question ...
0
votes
2answers
74 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 ...
2
votes
6answers
92k views

Computer runs but monitor is on power saving mode?

This stuff rarely happens, but when it does I simply restart my PC then it works fine. But today after several restart attempts it seems to be stuck. I tried removing the video card then switched to ...
0
votes
2answers
853 views

Are there 3-pin to 2-pin power connectors for motherboards

My (old) case front panel has a 3-pin power led connector (inc. one empty slot in the middle). My (new) motherboard has a 2-pin power led connector. How do I connect the two? If I try to connect the ...
4
votes
2answers
265 views

Toshiba Laptop doesn't charge whilst the laptop is in use

I have a Toshiba laptop that charges while it is off - it charges normally, the battery LED shows orange (charging) as per normal. However when the charger is plugged in and laptop is on, the power ...
2
votes
1answer
406 views

Laptop internal display no longer working

I have a Toshiba laptop which has a broken LED screen the screen was broken in transit, therefore you can assume that it was not handled with care. Whilst it was broken it still worked, therefore I ...
0
votes
1answer
122 views

Are there any unmanaged gigabit switches available without indicator LEDs? [closed]

I need to put a switch into my home theatre stack and am looking for something without blinking indicator LEDs. I’ve debated taping over them but that looks ghetto and actually requires some precision ...
0
votes
1answer
800 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 ...
1
vote
2answers
1k views

led tv monitor supports 1920 x 1080 Full HD Resolution but on my pc resolutions settings there are no 1080p resolution?

I have a TCL 19" LED19P21 LED TV according to its specs it should support 1080p resolution but I don't see 1080p resolution on my windows 7 display settings. I have a HD 4670 ati radeon video card and ...
2
votes
1answer
2k views

How can I tell if a replacement display is compatible with my laptop?

I have an Acer Aspire 4810TZ from 2010 which I truly love - it's a 3 year old notebook that still carries on for about 5 to 6h straight off the battery. I've also invested in it with an SSD and extra ...
0
votes
0answers
199 views

Monitor turns off then on again issue with led monitor on older (2011) hardware

Monitor turns off then on again issue with led monitor on older (2011) hardware. Problem solved by swapping out the 2012 led monitor with the original 2011 lcd monitor. Question Why does the LED ...
1
vote
2answers
100 views

How can I confirm through monitor specifications that they will match an existing display?

I couple weeks back I bought a MacBook Pro with Retina display and I love it. To go along with it I bought a second monitor; a generic LG-branded monitor. My issue is that the colors on the LG monitor ...
4
votes
2answers
1k views

Disable pendrive blinking in Linux

I recently bought a 16GB Super Talent pen drive that seems to work well for running the Ubuntu Live "CD" in persistent mode (see this for how I installed it). One slightly annoying thing, however, is ...
3
votes
1answer
3k views

How to turn off the Acer Aspire 7738 Power Button LED light?

The Acer Aspire 7738 has a large blue light emitting power button, top left on the keyboard. Its light is rather distracting and I want to turn it off. How can I disable this light?
1
vote
2answers
2k views

Fan twitches and LEDs blink when computer is plugged in

I just finished assembling a desktop for the first time. The specs are: Gigabyte GA-H55M-S2H motherboard Core i3 530 CPU 4 GB DDR3 RAM 1 TB SATA hard drive 500 Watt PSU As soon as I plug in the ...
0
votes
1answer
719 views

M5A99X Evo R2.0 wont post after new ram upgrade

Setup: ASUS M5A99X EVO R2.0 AM3+, AMD 990X, SATA 6Gb/s, USB 3.0, ATX, AMD Motherboard AMD FX-8350 Vishera 4.0GHz (4.2GHz Turbo) Socket AM3+ 125W Eight-Core Desktop Processor FD8350FRHKBOX 6 to 8GB ...
2
votes
1answer
3k views

Should one side of an LED monitor get warm?

I have recently purchased a new LG 22EA53 IPS LED Monitor. Only one side(right side) of this LED monitor gets warm after 1-2 hours of usage, while rest of the three sides do not get warm at all. Is ...
1
vote
1answer
935 views

Weird LED laptop screen flickering after replacement

I have a 3 years old Toshiba Satellite L750D. A couple of days ago it's screen started having random noisy horizontal bars on the screen (some noises for 1-2 seconds, then nothing for minutes, then ...
1
vote
1answer
3k views

Difference between a LED Backlit and LED HD Display on laptop monitor

Is there a difference between a LED Backlit and LED HD Display on laptop monitor? or are they the same that is good for the eyes
0
votes
1answer
6k views

New build Asus Z87-A motherboard; PC not starting, DRAM memory LED lights up red

I have problems with a newly build computer with a Asus Z87-A motherboard. We build several computers with the same configuration and all the other ones were working fine. First I thought the DRAM ...
1
vote
1answer
254 views

A screen virtual LED on linux

We have some LEDs on our machine to indicate the status of Caps Lock, Num Lock etc. Now I need a virtual LED in Linux to notify something. For example, I wrote a script to monitor a website. When ...
1
vote
2answers
298 views

Router startup problems

I have problems with my Tilgin Vood Router. As I try to start my router by turning the power on (captain obvious), it generally doesn't work the first 3-4 times. This is getting very annoying. Five ...
0
votes
1answer
603 views

the led of wireless card is always flashing

I just installed archlinux and awesome on my laptop. But I find that the led of wireless card is always flashing in connect status. Is there any way to disable it? NIC: 07:00.0 Network controller: ...
2
votes
1answer
2k views

Disable capslock LEDs light

I'd like to know if there's a way to disable the LED light of my capslock key. I'd like to use it for gaming but everytime I press it the LED turn on and it blinds me.
7
votes
1answer
6k views

How to test LCD monitors?

I will be buying a second hand monitor, a Benq LED Benq 24 V2420H FullHD. What methods can I use to test that the monitor is OK. I mean like dead pixels etc.?
0
votes
3answers
489 views

Does changing a display's resolution turn display's pixels off?

When a display (LCD, LED, OLED, etc) changes its display resolution, are pixels on the display "turned off"? Meaning, are the same number of pixels on the display being used to show an image with ...
0
votes
0answers
364 views

Calibrations settings stored in monitor

I recently bought new Samsung SyncMaster S22B300B. Its colors were awesome. To play with its settings comfortably using mouse, I installed Samsung MagicTune. There are two calibration options in it. ...
1
vote
1answer
1k views

HP pavilion dv5 doesn't start with AC adapter

I'm experiencing a problem with my HP Pavilion DV5 laptop. It will not power on with the charger only. It did so before. It powers on with the battery, but the charger light on the side next to the ...