Switch off the monitor manually when you are not working on the notebook to save energy?

Try3 · Jan 13, 2023

Donk said:
Is there really usually a manual for this (HP Laptop »17-cn0623ng« 4J8T1EA #ABD) / each Notebook available?

By the way, if you go to
https://support.hp.com
and put in your serial number, you ought to be taken to a page from which you can download drivers & manuals [user manual, service manual].
And you should see a link to your Product Specifications which are also available directly at HP Laptop 17-cn0623ng Product Specifications - HP Customer Support

Denis

Donk · Jan 13, 2023

Very sorry, didn't check that, because with the display turned off [by Power options] the sound turnes off here as well. So I could not use it. Didn't think of measuring the other variants as well, sorry. So I just checked the differnece between the notebook running the programs I usually use (no different conditions, more, less program / performance,idle, etc.) and the external monitor (instead of the notebook dislplay).

By the way, if you go to

https://support.hp.com
and put in your serial number, you ought to be taken to a page from which you can download drivers & manuals [user manual, service manual].

Many thanks, I then had returned the notebook unfortunately. But I tried the same (on the Lenovo Website) for the Lenovo IdeaPad 3 17ABA7 Laptop - Type 82RQ (Lenovo IdeaPad 3 82RQ003EGE) with success.

abactuon · Jan 13, 2023

Does it work?

# Notebook action when the lid and power button are closed (3 - shut down, 2 - sleep, 0 - do nothing)
C:\Windows\System32\powercfg.exe /SETACVALUEINDEX SCHEME_CURRENT SUB_BUTTONS LIDACTION 2
C:\Windows\System32\powercfg.exe /SETDCVALUEINDEX SCHEME_CURRENT SUB_BUTTONS LIDACTION 2

Donk · Jan 13, 2023

Excuse me, what to do with that lines, if any?

Try3 · Jan 13, 2023

Donk,

abuactuon is suggesting using commands that will emulate your manually setting the Lid close action to Sleep when using mains power & when using it on battery.

If you've already returned it then I appreciate you won't be doing any further tests but what I meant in my last post was testing out its behaviour with its own display [rather than your external display].
I've never seen a power analysis of different display states. I don't have a power meter.

All the best,
Denis

Berton · Jan 13, 2023

On all my Notebooks the Fn + another F key doesn't actually turn off the video adapter but toggles between the LCD panel, the VGA/HDMI port for a monitor/projector or both at the same time. Don't see how there could be much power savings. With no monitor attached it would appear to be an on/off switch. I once had a couple house calls to a client who had a housekeeper that would get her Notebook in that condition and a little training solved the issue.

Try3 · Jan 13, 2023

Berton,

I was asking about the comparison between the laptop's power consumption with its own display on & off not with it merely switched to another display.
I have absolutely no idea what the comparison would be.

All the best,
Denis

hdmi · Jan 13, 2023

Donk said:
I have checked now the power consumption of my Lenovo IdeaPad 3 17ABA7 Laptop (consuming about 40, 50 Watt normally with its display turned on like usual) with a power meter:

Using the screensaver (black color) brings next to nothing. If at all it perhaps saves 1, 2 Watt. It does not seem to be that easy to measure that.

Switching to the external monitor (so shutting off the notebook display, the external source, an Hifi amplifier, is shut off) seems to save about 10, 12 Watt, may be less. Switching to another monitor causes about 30-50 Watt more power consumption for some seconds.

But changing the monitors sometimes lasts a little (up to may be 5 seconds or even longer), so one cannot immediately access the computer after switching back to the notebook display, interrupted sound / music. And it (the switching) brings some other uncertainties, e.g. resized windows, different positions of them, changed volumes (very inconvenient, you have to readjust them in the Sound Mixer). One has to press keys (instead of just touch the mouse pad, move the mouse, etc. with a screensaver).

So perhaps leaving the monitor on ALL the time (under these circumstances) might be a good option. Nothing to worry about in terms of (such an insignificant topic as) turning off, turning on the display then.

Doesn't your TV have an option to turn off just the picture (so the TV stays on, only the picture doesn't)? On my Sony Bravia XR-55X90J the [Picture Off] feature is buried somewhere deep in the TV's menu structure, but the TV allows that feature to be added to Quick Settings, which is a menu bar that I can access quickly by pressing the cogwheel button that's on the remote. To turn the picture back on instantly, all I have to do is just press the BACK button on the remote.

Donk · Jan 13, 2023

abuactuon is suggesting using commands that will emulate your manually setting the Lid close action to Sleep when using mains power & when using it on battery.

Ah yes, but how?

If you've already returned it then I appreciate you won't be doing any further tests

No no, I am asking the same for the Lenovo IdeaPad 3 17ABA7 Laptop. It is the same issue here.

but what I meant in my last post was testing out its behaviour with its own display [rather than your external display].

Yes, that's what I thought I understood.

I've never seen a power analysis of different display states.

Yes, exactly, I hadn't before either.

Many thanks!

Doesn't your TV have an option to turn off just the picture (so the TV stays on, only the picture doesn't)?

Ah, very sorry for my poor explanation as I just now realize: by "Switching to the external monitor" (while testing the power consumption), I meant, I switched to the external monitor, but there is not a monitor / TV what would be turned on or would be running. the external monitor is the amplifier, connected with HDMI cable. The amp is connect with HDMI cable with the TV (not running). The amp keeps staying on when switching to it, that is the only way I found to turn the notebook display off and keeping the music sounding.
But yes, the TV, I assume, has an option to turn off only the picture. Yes, to run the TV (with pcture) would cause pretty more power consumption than the notebook display.

Sorry again for the ridiculous explanation.

hdmi · Jan 14, 2023

Donk said:
Using the screensaver (black color) brings next to nothing. If at all it perhaps saves 1, 2 Watt.

Decreasing the screen brightness to the lowest possible setting should make a lot more difference, as the LED backlight that the IPS panel in the laptop's built-in screen uses consumes the most power, generally, and as far as the screen is concerned. (With an OLED screen, there is no LED backlight so then it would've been a whole other story.)

EDIT: Here's another something that might help also:

Creating a display instance WITHOUT a monitor or a dummy plug

If in case you need a new display instance for your project or setup but you don't have a dummy plug or your graphics card does not have an output port, this might be for you. What you need to do: Simply download and install ge9's IddSampleDriver (read the instructions included there). Go to Devi...

linustechtips.com

Try3 · Jan 14, 2023

Donk said:
Ah yes, but how?

Your question is not clear to me.
Power options, Choose what closing the lid does.

Change Lid Close Action - ElevenForumTutorials

Personally, I see no point in using code to achieve a one-off action that takes only a moment or two.

Denis

hdmi · Jan 14, 2023

If I change the "When I close the lid:" setting to Do nothing, then closing the lid doesn't turn the screen off. Whereas if I change it to Sleep, then the laptop goes to sleep so it stops playing music when I close the lid.

Change Lid Close Action in Windows 11 Tutorial

This tutorial will show you how to change the default action to take when closing the lid of your laptop in Windows 10 and Windows 11. The lid switch close action specifies the action to take when the system lid is closed. Users can specify one of the following actions to take: Do Nothing =...

www.elevenforum.com

Donk · Jan 14, 2023

Decreasing the screen brightness to the lowest possible setting should make a lot more difference, as the LED backlight that the IPS panel in the laptop's built-in screen uses consumes the most power, generally, and as far as the screen is concerned.

So one had to press Fn+F(x) for some secounds to get thw lowest brightness and Fn+F(x2) to inncrease it again?

EDIT: Here's another something that might help also:

Thank you very much!

Unfavorably this is said there:
"This requires fairly advanced computer skills according to the driver's author".

Unfortunately I really do not have any skills.

And this maybe does not sound that trustworthy somehow (for anxious people):
"Moreover, this is a custom driver from a pretty much unknown source. Proceed at your own risk. With that said, I would also like to give my opinion that simply being diligent in reading the instructions and having basic knowledge in what drivers and certificates are is enough to make this work. "

Your question is not clear to me.

Excuse me, what exactly?

Power options, Choose what closing the lid does

Herewith

# Notebook action when the lid and power button are closed (3 - shut down, 2 - sleep, 0 - do nothing)
C:\Windows\System32\powercfg.exe /SETACVALUEINDEX SCHEME_CURRENT SUB_BUTTONS LIDACTION 2
C:\Windows\System32\powercfg.exe /SETDCVALUEINDEX SCHEME_CURRENT SUB_BUTTONS LIDACTION 2

the settings in the power options were meant?

No no, does not work.

[That's Win10 wording, my Win11 computer is still asleep in the cupboard].

Excuse me, what?

Try3 · Jan 14, 2023

Donk said:
I am asking the same for the Lenovo IdeaPad 3 17ABA7 Laptop. It is the same issue here.

Then I suggest taking the same steps. Either leave your display on or set up a screensaver so the display looks off but the monitor remains on.

I don't face your problem because the only time I play audio tracks is when my laptop is not connected to anything else.
I change power plans to one in which the display goes off after one minute then, later on, the computer sleeps a minute after WMP has finished the playlist.

All the best,
Denis

Try3 · Jan 14, 2023

Donk said:
Excuse me, what exactly?

You asked, "how?".
How what?
What did the "how" refer to?

I explained how to change the lid close action because I thought it likely that that was what you wanted to know more about.

- I also said that I thought changing the close close action by using code was a waste of time. That code that was posted & that you've just quoted was intended to replace about three or four seconds of manual effort. The tutorial provides alternative code. But it remains a waste of time.

- I gave you a link to the relevant tutorial so you could see several methods of doing the change.

It is perfectly possible that an individual computer's Bios can prevent any changes being made to the lid close action.

I believe that Edwin's experience [below] is normal. I think many or possibly all laptops turn off power to the display when the lid is closed.
The possible lid close actions that can be set do not even refer to keeping the display powered up:

Denis

Edwin · Jan 14, 2023

hdmi said:
If I change the "When I close the lid:" setting to Do nothing, then closing the lid doesn't turn the screen off.

My VivoBook has a switch in the hinge that overrides Power Options...

Donk · Jan 14, 2023

Whereas if I change it to Sleep, then the laptop goes to sleep so it stops playing music when I close the lid.

Yes, I guess the same here. And I assume perhaps downloads will stop and other activities, for example synchronizing.

If I change the "When I close the lid:" setting to Do nothing, then closing the lid doesn't turn the screen off.

Obviously the "When I close the lid:" to do nothing setting here causes switching to the external monitor. So it does the same what I do by pressing a short cut (switching to the external monitor, to get the display off).

Then I suggest taking the same steps. Either leave your display on or set up a screensaver so the display looks off but the monitor remains on.

OK, yes, but why letting the monitor looking off and leaving it on. Ich wollte mit dem Abschalten ja eigentlich Strom sparen.

I don't face your problem because the only time I play audio tracks is when my laptop is not connected to anything else.
I change power plans to one in which the display goes off after one minute then, later on, the computer sleeps a minute after WMP has finished the playlist.

Yes, I understand. That seems to be much more easier than to try to turn off the monitor without interrupting the music.

Many thanks!

What did you want to know the method for?

For this, did not understand what commands these are:

abuactuon is suggesting using commands that will emulate your manually setting the Lid close action to Sleep when using mains power & when using it on battery.

I explained how to change the lid close action because I thought it likely that that was what you wanted to know more about.
- I also said that I thought changing the close close action by using code was a waste of time. That code that was posted & that you've just quoted was intended to replace about three or four seconds of manual effort. The tutorial provides alternative code. But it remains a waste of time.
- I gave you a link to the relevant tutorial so you could see several methods of doing the change.
It is perfectly possible that an individual computer's Bios can prevent any changes being made to the lid close action.

Yes yes, thank you very much again, I appreciate that very much! Yes, it seem there really is no way, very bad, I couldn't have even imagined.

My VivoBook has a switch in the hinge that overrides Power Options...

I cannot find such here in the Lenovo. Many thanks for the gif.

Try3 · Jan 14, 2023

Donk said:
OK, yes, but why letting the monitor looking off and leaving it on. Ich wollte mit dem Abschalten ja eigentlich Strom sparen.

I thought you wanted it to keep playing music and that saving power was a secondary consideration.

Donk said:
I cannot find such here in the Lenovo.

Edwin did not mean a switch that he could see but one whose existence he deduced from the behaviour shown in his video.

Denis

Edwin · Jan 14, 2023

Donk said:
I cannot find such here in the Lenovo.

May not exist on your machine.

Try3 said:
Edwin did not mean a switch that he could see but one whose existence he deduced from the behaviour shown in his video.

Correct. I've never actually seen the physical switch, myself, I was just told it's in there!

Probably a setting for it in the BIOS, I bet!

hdmi · Jan 14, 2023

Edwin said:
My VivoBook has a switch in the hinge that overrides Power Options...

View attachment 49935

View attachment 49936

You're right, mine behaves the same. Sorry about the confusion.

Donk said:
Obviously the "When I close the lid:" to do nothing setting here causes switching to the external monitor. So it does the same what I do by pressing a short cut (switching to the external monitor, to get the display off).

Yes, mine behaves the same, but if I change the setting under Multiple displays to Extend these displays, then when I close the lid, the laptop's built-in screen turns off whereas the TV continues to receive the same signal like almost nothing happened. Just a very brief and subtle zoom out/in effect occurs on the TV whilst the Multiple displays section disappears from the Windows Settings app, and, at the same time also, the Windows Settings app window jumps to a slightly different position. Whereas, if I change the setting under Multiple displays to Show only on 2, then when I close the lid after that, that's when the TV screen turns black for ~2 seconds with only a white mouse arrow on it. So, then, it takes ~2 seconds for Windows 11 to recover itself from switch syndrome. Lucky for me, I play my music through an outboard USB DAC so, I am quite immune to this sort of balderdash from Microsoft.