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Re: undefined

#61

Post by vbphprubyjsgo »

stavros wrote: post #39
onion2k wrote: post #3

Making your screen all black saves energy. For many monitors this is not true. For a screen where the resting state of the LCD pixels are open displaying black means the monitor has to switch the diffuser to closed in order to block the light, which uses more energy than displaying white. There are lots of different LCD technologies which affect whether black or white is more efficient. For CRT screens black is alway…

My second screen (an LG) turns the backlight off whenever it's all black. My Dell monitors don't do the same, and it's a shame. It's always on but effectively off all the time as it usually is all-black, and thus there's no backlight.

> My second screen (an LG) turns the backlight off whenever it's all black.

Did you test that setting every pixel black actually triggers this? Most OS just shut the monitor after inactivity (by ceasing to output video signal, or something like that).

Re: undefined

#62

Post by [deleted] »

croon wrote: post #13
noisy_boy wrote: post #7

I use a completely black image as my desktop background just to avoid the background light around windows with dark/night mode (the impact is more pronounced at night because I like to turn-off the lights in my room at night while using the computer). Also makes watching movies nicer when I don't want them full screen.

I always have a dimmed light behind my monitor to reduce contrast strain from monitor backlight. I have no idea if this is actually rooted in science or something I just adopted and post-rationalized, but I guess I know what to research next coffee break.

[deleted]

Re: undefined

#63

Post by stavros »

vbphprubyjsgo wrote: post #61
stavros wrote: post #39

Earlier quoted context omitted.

My second screen (an LG) turns the backlight off whenever it's all black. My Dell monitors don't do the same, and it's a shame. It's always on but effectively off all the time as it usually is all-black, and thus there's no backlight.

> My second screen (an LG) turns the backlight off whenever it's all black. Did you test that setting every pixel black actually triggers this? Most OS just shut the monitor after inactivity (by ceasing to output video signal, or something like that).

Yes, it happens within seconds. It's not VESA blanking.

Re: undefined

#65

Post by vbphprubyjsgo »

stavros wrote: post #63
vbphprubyjsgo wrote: post #61

Earlier quoted context omitted.

> My second screen (an LG) turns the backlight off whenever it's all black. Did you test that setting every pixel black actually triggers this? Most OS just shut the monitor after inactivity (by ceasing to output video signal, or something like that).

Yes, it happens within seconds. It's not VESA blanking.

That's a huge misfeature, then. Is it a computer monitor?

Ahh maybe you are referring to dynamic contrast (which is still a misfeature).

Re: undefined

#66

Post by vbphprubyjsgo »

optymizer wrote: post #48

People are posting all sorts of code one-liners to do this, but... what happened to just pressing the power button? Pros: * Only 1 keypress per display * The button is guaranteed to be present on all displays by default * It doesn't frustrate you by pointing out the dead pixels * Optimal energy efficiency * You don't have to customize scripts or settings on your OSs, even if you reinstall * You don't have to know if…

Cons:

  * power button is some gimmick optico fingerprint reading crap that is somehow less user-friendly than a light switch for 10 cents
  * turning the monitor back on will take 3-15 seconds, and due to above you may end up waiting 20 seconds to discover you didn't activate the button properly, depending on the monitor
by all means, I don't intend to defend using a web browser to set the color of pixels

Re: undefined

#67

Post by stavros »

vbphprubyjsgo wrote: post #65
stavros wrote: post #63

Earlier quoted context omitted.

Yes, it happens within seconds. It's not VESA blanking.

That's a huge misfeature, then. Is it a computer monitor? Ahh maybe you are referring to dynamic contrast (which is still a misfeature).

It's a computer monitor, yes. I don't know about a misfeature, I love it. What's dynamic contrast?

Re: undefined

#68

Post by vbphprubyjsgo »

theelous3 wrote: post #11

My off white "back / home / app switch" bar remains so it's not even close to being all black. (chrome on android. Works on ff.) > Save energy Only on one type of oled? It's more energy intensive than white on the majority of screen types. > Stealth mode / Meditation / Better than standby mode This might blow your mind but... phones can be placed face down. Or hit the standby switch. Or put it in your pocket. All way…

as other poster mentioned, some LCDs have voltage = white and some have voltage = black. it's certainly not majority, and it doesn't matter anyway because the backlight stays on regardless

Re: undefined

#69

Post by 45ure »

I might be missing a trick. Some options, listed below, do most of the things and even those which the FAQ admits are beyond its scope. Amongst a multitude of alternatives, I have settled upon TwinkleTray for Windows. MonitorControl on macOS. OLEDify for iOS/iPadOS/Android, or just take a shot at one of the superb wallpapers from r/Amoledbackgrounds. As an example, in order to comprehensively test the display, I used DisplayTester on Galaxy S20, when I first acquired it. There are similar tools for other OS'.

https://twinkletray.com/

https://github.com/MonitorControl/MonitorControl

https://apps.apple.com/us/app/oledify-pure-black-wallpapers/...

https://play.google.com/store/apps/details?id=com.gombosdev....

https://www.testmyscreen.com/

Re: undefined

#70

Post by vbphprubyjsgo »

stavros wrote: post #67
vbphprubyjsgo wrote: post #65

Earlier quoted context omitted.

That's a huge misfeature, then. Is it a computer monitor? Ahh maybe you are referring to dynamic contrast (which is still a misfeature).

It's a computer monitor, yes. I don't know about a misfeature, I love it. What's dynamic contrast?

I have never seen a monitor that turns off with a black screen (aside from dynamic contrast mode). What happens when the screen needs to turn back on? Does it freeze for 1-3 seconds?

> What's dynamic contrast?

Shutting certain backlights to raise the contrast between the dark side of the screen and the lit side. It has various undesireable side effects such as the darkening and lightening giant areas unexpectedly. They often try to make the transition gradual which just makes the screen even less real-time.

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