Questions tagged [led]
The led tag has no usage guidance.
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Is an LED monitor better for eyes than an LCD monitor?
Is an LED monitor better for eyes than an LCD monitor?
EDIT:
And if you are allergic to fluorescent light, is LED going to be better? I heard that LED doesn't uses fluorescent light.
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How can I make my computer play dead? [duplicate]
Possible Duplicate:
Disable power LED blinks during Vista hybrid sleep?
I have a laptop that when sleeping is perfectly quiet, which is great. What isn't so great is trying to sleep with led ...
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votes
7
answers
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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 ...
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1
answer
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Does raising LCD monitor contrast increase energy usage?
I've got a Dell S23340M - an LCD monitor with an LED backlight, which has built-in options to adjust the brightness & contrast. The monitor features a nifty "Energy Usage" bar that changes as you ...
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3
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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 ...
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3
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Disable power LED blinks during Vista hybrid sleep?
Does anyone know how to disable the blinking power LED when Vista enters hybrid sleep mode? My case has a very bright blue LED that is rather distracting. I'd rather not disable hybrid sleep, as it ...
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5
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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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9
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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?
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1
answer
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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 ...
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1
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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.?
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How do LCD monitors compare to LED monitors?
I'd love to get this LCD monitor, but I'm wondering if I should hold out until more LED monitors are on the market.
I really like the brightness of the 27" iMac monitor and the above monitor is only ...
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4
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Why do most LED monitors have low contrast ratios? (1000:1)
I was just looking on newegg.com and I noticed that there are about 28 monitors have have a 1000:1 contrast ratio but only 5 that have the 5,000,000:1 contrast ratio...how come most LED monitors have ...
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Is there a way to use Caps/Numlock led for HD activities? [duplicate]
My laptop has not a hd activity led indicator. So, how could I use some other led (such as my keyboard NumLock or Capslock one) to blink when hd has some activity?
Thanks in advance!
OS: Linux ...
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votes
2
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Can I use the HDD LED or another LED to get process activity?
Can I get the status of a process by using the HDD and Power LEDs as indicators?
I'd like to use the green power LED to tell me that a status is available, and the red LED to tell me that it isn't.
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3
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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 ...
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Hard Drive Light Emulator
I've just got a new Dell Inspiron, and I'm a little disconcerted without the reassurance of a flashing hard drive light, especially with long installs. Is there something that can reveal HDD activity ...
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Getting laptop wireless LED to indicate wireless network activity?
Is there a way to get the wireless LED of a laptop to indicate wireless activity the way that the hard-drive LED does?
It seems to have been implemented in Ubuntu, so fortunately it can be done with ...
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4
votes
6
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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 ...
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How can I turn off the LEDs on the front of my laptop(ASUS K501LX-NH52)?
Is there a way to turn off the lights on the front of my laptop? My laptop: http://www.newegg.com/Product/Product.aspx?Item=N82E16834232753R. I am currently running a dual-boot of KDE Fedora and ...
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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 ...
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2
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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 ...
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How to control Computer RGB LEDs in Linux
[I asked this on stackoverflow first]
Since I switched to a new AMD Ryzen system my computer lit-up.
All new hardware components seem nowadays to have such fancy(?) RGB-LEDs built in (even in memory ...
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1
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Setting laptop leds in Linux
I have installed Arch Linux on my laptop. Controlling ALSA using the hardware audio keys works fine using Openbox shortcuts. I only need to make the mute button lights up, like it does in Windows.
...
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3
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Is changing DPI of LED harmful?
I just bought a 23" widescreen LED monitor for my Windows PC, I always use CRT monitors, it is the first time for me to work on a LED monitor.
I am a low vision, so I always increase DPI.
Is ...
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If there is no CPU in the motherboard, will the LED still be on?
Sorry if my question may have been answered somewhere else, but my google-fu is kind of weak.
I have been trying to create a new setup recently. The PSU (700W) is known to work on other motherboards, ...
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1
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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?
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HP DX5150, MS-7050 v. 1.3 Motherboard front panel pin connectors
I recently purchased and installed a MS-7050 v. 1.3 motherboard into a regular non-HP case and thus the front panel connectors are different than the original OEM connectors which are all bundled ...
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2
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Changing thinkpad microphone mute LED behaviour
I was wondering and looking if someone has been able to make the following.
Led indicator ON = Microphone ON //
Led indicator OFF = Microphone OFF
I think is the way it should work, not the default ...
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votes
1
answer
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LED Monitor brightness
I am in the market for a new monitor. I've been looking around and it seems that the general brightness for monitors is between 250-320 cd/m2.
After hours of searching, I narrowed it down to the LG ...
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votes
3
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414
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Should I be worried by wireless blinky light?
I have a desktop box with both a regular ethernet NIC and a "wireless PCI express card LAN Adapter". The NIC is plugged into a wired router (which I use to split my internet connection between this ...
not my real name
3
votes
5
answers
11k
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How to find out if the screen is WLED or RGBLED on Dell Studio XPS 16?
I just ordered the Dell Studio XPS 16 with i7 and 16" RGBLED screen. This upgrade from WLED LCD to RGBLED LCD charged me more $$. But now when I view the order online, it lists this part as "320-8335 ...
Abhijeet
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3
answers
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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 ...
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who makes an LED desktop monitor besides Apple? [closed]
Besides Apple (Cinema Display) who sells an LED backlit computer display 1900 x 1200 or 1900 x 1080?
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How can I disable the LEDs on my Gammaxx 400 CPU cooler?
I've bought and installed a Gammaxx 400 CPU cooler:
It works well enough, but there's a problem - on its four corners are annoying shocking-blue LEDs. I want to turn them off! Yet - there doesn't ...
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2
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1
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LED backlit monitor suitable for documents/web?
I am looking to buy a 24" monitor. Sometimes I watch movies, but mostly it will be for document editing and programming (Visual Studio). I have found a product I like, and it has an 'LED backlit' ...
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Does disabling laptop keyboard backlight LEDs improve battery life?
On a laptop, if you press the key that turns on/off the backlight on the keyboard, does it improve battery life?
I ask this because I find myself instinctively disabling the LEDs when I don't need ...
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1
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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 ...
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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 ...
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3
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Why does my new LED LCD TV look worse than my CCFL LCD monitor?
At work we wanted a large 1920 x 1080 monitor to use with a certain program. Since monitors with this resolution seem to currently stop at 24", we went for a LCD TV so that we could have 26", and in ...
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1
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My HP PageWide Pro Printer's ethernet port is constantly flashing
The ethernet port LED (green) of my HP PageWide Pro Printer is constantly flashing in a very high frequency. Permanent, it seems to be 24 hours x 365 days even though the printer is not in use most of ...
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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.
2
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1
answer
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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 ...
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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 ...
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How do you connect a card reader?
I bought a Velocity micro case which came with a card reader built in. I installed a Gigabyte 880GA-UD3H and can't find a place to plug it in.
Do most motherboards have this option? Or did just get ...
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1
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502
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Apple LED Cinema Display low resolution on Windows PC
I have an old Apple Cinema Display 27" that has a mini-DisplayPort cable.
To use it with my laptop I've bought a USB-C to mini DisplayPort connector.
On linux I'm getting the full resolution (...
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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 (i.e.,...
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Sk6812 addressable rgbw strip with mobo argb header
I was wondering if I could add an rgbw strip to my pc. I rouled out the 4pin connector for obvious reasons (no channel for w). Then, I saw a 3 pin addressable led strip with rgbw. Is there a way to ...
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1
answer
427
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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 ...
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1
answer
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Laptop screen replacement
I have this screen and the "Full HD" resolution is too much for my eyes. I'd like to get a screen with smaller resolution. Will this model work? Or N173HGE-L11 (please use search on that site, I can't ...
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Is it safe to cover LEDs on my fans with electric tape?
Just wondering. Some of these LEDs on my Antec 1200 case are kind of annoying since the computer is in my bedroom. Is it safe to cover these LEDs with electric tape? I've already done so for awhile ...
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