Turn ON keyboard backlight?

hello,please give me help that how to turn on the backlight keyboard for lenovo E550??

Did you try "Fn + Space"?

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Udev rules to turn off keyboard backlight on Asus UX32VD AFTER login

Hi,
I would like to turn off the keyboard backlight everytime my laptop starts.
I looked at :
https://wiki.archlinux.org/index.php/As … _Backlight
So I created a rule :
/etc/udev/rules.d/kbd_backlight.rules
SUBSYSTEM=="leds", ACTION=="add", KERNEL=="asus::kbd_backlight",DRIVERS=="asus-nb-wmi", ATTR{brightness}="0"
It works quite fine, after the boot the keyboard turns OFF.
But at GNOME login it goes ON again.
I found this :
https://wiki.archlinux.org/index.php/Ba … ht_service
and masked
systemctl mask systemd-backlight@leds:asus::kbd_backlight.service
No more success...
On grep later I masked this one :
systemctl mask sys-devices-platform-asus\x2dnb\x2dwmi-leds-asus::kbd_backlight.device
Nothing new.
On more grep and I commented this :
/lib64/udev/rules.d/99-systemd.rules
# SUBSYSTEM=="leds", KERNEL=="*kbd_backlight", TAG+="systemd", IMPORT{builtin}="path_id", ENV{SYSTEMD_WANTS}+="systemd-backlight@leds:$name.service"
I tried to understand a bit more with this, but without success:
https://wiki.archlinux.org/index.php/Ud … f_a_device
udevadm info -a -p /sys/class/leds/asus\:\:kbd_backlight
Udevadm info starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device
found, all possible attributes in the udev rules key format.
A rule to match, can be composed by the attributes of the device
and the attributes from one single parent device.
looking at device '/devices/platform/asus-nb-wmi/leds/asus::kbd_backlight':
KERNEL=="asus::kbd_backlight"
SUBSYSTEM=="leds"
DRIVER==""
ATTR{brightness}=="0"
ATTR{max_brightness}=="3"
ATTR{trigger}=="[none] cpu0 cpu1 cpu2 cpu3 AC0-online rfkill0 phy0rx phy0tx phy0assoc phy0radio BAT0-charging-or-full BAT0-charging BAT0-full BAT0-charging-blink-full-solid rfkill2 rfkill3 "
looking at parent device '/devices/platform/asus-nb-wmi':
KERNELS=="asus-nb-wmi"
SUBSYSTEMS=="platform"
DRIVERS=="asus-nb-wmi"
ATTRS{lid_resume}=="0"
looking at parent device '/devices/platform':
KERNELS=="platform"
SUBSYSTEMS==""
DRIVERS==""
Any idea ?
Thanks!

This is driving me crazy...
At GRUB time the keyboard backlight goes on.
UDEV SCRIPT
/etc/udev/rules.d/kbd_backlight.rules
SUBSYSTEM=="leds", ACTION=="add", KERNEL=="asus::kbd_backlight",DRIVERS=="asus-nb-wmi", ATTR{brightness}="0"
=> turns it off later, more or less when the filesystem is loaded, but when gdm (login/passwd) starts it turns on again.
SYSTEMD SCRIPT
After some fight with systemd I could do a script (the tricky part was to start it at the good "level")
/etc/systemd/system/kbd_backlight_off.service
[Unit]
Description=Turns off the keyboard backlight
Requires=upower.service graphical.target network.target
After=upower.service graphical.target network.target
[Service]
Type=oneshot
RemainAfterExit=no
ExecStart= /usr/bin/dbus-send --type=method_call --system --dest=org.freedesktop.UPower /org/freedesktop/UPower/KbdBacklight org.freedesktop.UPower.KbdBacklight.SetBrightness "int32:0"
[Install]
WantedBy=graphical.target
=> useless, adds nothing to udev (standalone it has the same effect than the udev script)
DESKTOP AUTOSTART SCRIPT
.config/autostart/kbd_backlight_off.desktop
[Desktop Entry]
Type=Application
Exec=dbus-send --type=method_call --print-reply=literal --system --dest='org.freedesktop.UPower' '/org/freedesktop/UPower/KbdBacklight' 'org.freedesktop.UPower.KbdBacklight.SetBrightness' "int32:0"
Hidden=false
X-GNOME-Autostart-enabled=true
Name[en_US]=kbd_backlight_off
Name=kbd_backlight_off
Comment[en_US]=kbd_backlight_off
Comment=kbd_backlight_off
=> it turns if off after the login, but when the background wallpaper is displayed it goes on again...
Shouldn't be so difficult to turn the keyboard backlight off, from the boot time... What am I missing ???

T440p turn on keyboard backlight at startup automatically

Hi
Is there a way to do this at Windows 7 / 8???
I know that it's not possible from the BIOS but there must be an utility there which turns on the keyboard backlight at every windows startup and keep it on regardless of what.
Also I would like it to be turned back on when the computer comes out of sleep/hibernation.
Does anyone know a software for this?
Thanks

Maybe from lenovo software but there must be another windows utility for this.
In linux manipulating leds are possible through /sys/class/leds/tcapi
The person who I want to give this computer as a gift is completely computer analfabet and she would love to have the backlight to be turned on all the time.

Lenovo Thinkpad E550 - Turn ON keyboard backlight?

hello,
please give me help that how to turn on the backlight keyboard for lenovo E550??
Mod Edit: Subject line edited for clarity.

Good day and welcome to the community.
Does your spacebar show this icon: ?
If so, please try holding the Fn key and then tapping the spacebar.
If your spacebar doesn't have that icon, then, in my experience, you don't have a backlit keyboard.
Regards

Pausing iTunes Turning Off Keyboard Backlight

got a new MacBook Pro recently and just now noticing something pretty odd...
whenever I pause a song in iTunes, be it by pressing spacebar while the application is active, hitting the actual button in iTunes, or using the shortcut keys on the keyboard itself, the keyboard backlighting always cuts off. it comes back on at random intervals, and sometimes not all.
I've even tired re-installing iTunes. it's a pretty odd problem, heh...
any ideas?
thanks!

Is it doing it like this?:
http://www.youtube.com/watch?v=U4COGPnUo8Y
If so, see this:
http://discussions.apple.com/thread.jspa?messageID=10411273
I'm guessing you too have the "iSpazz" plugin installed in your iTunes folder. If so remove it and your problem will be fixed. as far as I know, there is no way to keep the plug in in there without causing this problem. Its a pain, but the only way I found is to put the plug in in there when I want to show off the keyboard, and take it out when I'm done.
Hope this helps
Regards,
Scott

Can't Turn of keyboard backlight in system preferences after installing Lion.

After installing OSX Lion backlight on the keyboard on my Macbook Pro will not shut off even though it says it's not activated in system preferences. Is anybody else having this problem?

Ditto!
How did they miss it?
Can we expect a fix in a .0.1 release?

Can not turn on keyboard backlight using f5 f6 or settings, Lion, 2.4 GHz Intel Core 2 Duo

keyboard brightness panel appears with fn+F5 orF6 but has the circle/strikethrough and does not adjust . Auto brightness unselected in preferences ... did an SMC reset and boot of course.

Have you tried a pram reset? It most likely won't help, but it don't hurt to try. Also, make a test user to see if you have the same problem. Also try it in safe mode. Post up the results, and we can go from there.

Keyboard backlighting - manually turning it on

Is there a way (short of putting a piece of tape over the camera) to manually turn the keyboard backlighting on? I'm regularly finding that the machine's idea of how dim the ambient light needs to be is different from mine - increasingly so as my eyes get older
thanks...Bob

That did the trick! Too bad this kind of control is not built into the machine as it comes from Apple.
Thanks...Bob

Keyboard backlight Issues

Hi, after updating to windows 10 my keyboard backlight is not changing from the red colour and the speaker lights won't turn off aswell. Can anyone help me with this? Cheers.

The way mine works is that the ambient light sensor turns the keyboard backlight on or off. The granular brightness settings are controlled by the function keys. The light sensor will change the brightness of the display but the keyboard is on/off.
Regards
Edit: I take it back. Mine does adjust with the light. Try holding your finger over the sensor so it's "dark" and adjusting the light. Then remove your finger and see it it adjust properly. If not, an SMC reset may be in order.

Keyboard backlight not working Z500

Good day! A few days ago has turned off keyboards backlight of lenovo Z500. I tried to reboot the laptop, but backlight still doesn't work as before by pressing FN+Space buttons. I hope this is a software bug and I could solve it without help of service center. But I can't solve it without your help, as the website and the Internet has no effect, and I have no desire to reinstall the system because of backlight. Maybe someone knows how to make it work again?

Hello,
I lost my keyboad lighting, after replacing my SSHD to SSD in my laptop.
1. I assembly with manual and checked 2x keyboard cable( power) is connected.
2. Tried to reinstall LEM(lenovo energy management).
3. Googled this problem, but didnt find similar.
Have you any suggestion, what should I do before using warranty, becouse I'm really need computer to work(I will do this anyway, my touchpad skin is peeling of )
Here is video how it look like: http://youtu.be/IpGe3gAAAXA
fn+space, no reaction
capslook,numlock lighting correctly
we can see weak backlight all the time.
Thanks in advance
Sebastian.
Moderator Note; subject edited; post merged in

Illuminated Keyboard - Keyboard Backlighting - MacBook Pro

Did something change in the way OS X handles the illuminated keyboard functions in Snow Leopard?
After upgrading from Leopard I am no longer able to turn the keyboard backlighting on. I asked my coworker to test this out on his MacBook and he had the same results.
I've checked settings for Energy Saver and Keyboard but can't seem to figure it out. Has anyone else noticed the same thing? I'm sure I'm missing something but I can't seem to figure it out.

i say a bug! -- it's very annoying that i can't change it to what i want whenever i want (sometimes it's dark enough i still want them lighted!)
i thought i was going insane for a little while too...so glad to see other people noticed the change
someone tell them to fix this please! ;o)

Macbook Pro (10.6.8) keyboard backlight wont turn on

I was reading some articles to try and fix it myself but I noticed a lot of people have problems with their keyboard backlight because they have the box located in
System Preferences > Keyboard > Automatic Illuminate either checked or unchecked. I checked my keyboard settings and I don't have that box at all!
I got my macbook in 2008, 2009 so it's a slightly older version. I need help fixiing my keyboard!
It hasnt worked for awhile now but I just never noticed it.
It never turns on when it's dark either.
When I cover the camera lens the display dims so it pretty much works
The only thing I noticed that no one talked about was that when I press FN + F5 or F6, I hear that sound that indicates you can't use that option. but when I try with the FN + f1 or f2, it works just fine.

Intel-based Macs: Resetting the System Management Controller (SMC)
Resetting your Mac's PRAM and NVRAM

My macbook pro keyboard backlight won't turn off, even after pressing F5

my macbook pro keyboard backlight won't turn off, even after pressing F5

Try resetting the SMC http://support.apple.com/kb/ht3964

After reset the SMC, my screen and the keyboard backlighting turn down at the same time when I cover the sensor.

The keyboard backlighting is still on under the lit. What can I do? Thanks! (MacBook Pro 2011 13' ; Mac OS X; 2.3 GHz Interl Core i5; 4GB 1333 MHz DDR3)

After reset the SMC, my screen and the keyboard backlighting turn down at the same time when I cover the sensor.
That's precisely what they're supposed to do.

Macbook 13 Retina keyboard backlight not turning on

Hi all,
I've had my 13inch MPRr for about two weeks now and whenever it comes out of sleep from a LidOpen the keyboard backlight will seldom turn on. It is pretty inconsistent but I can usually get it activated again when I put it into sleep manually from the menu bar. Has anyone else experienced erratic behavior from the keyboard backlight?

I'm also experiencing this problem. my 2.6 macbook pro is less than 2 weeks old and the backlit keyboard stopped illuminating a few days ago. it DID work for a time, but suddenly decided to stop working. labtick and preference pane tweaks have done nothing to fix the problem.
Try resetting your SMC, PRAM and run your hardware tester.
Resetting the System Management Controller >>
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
Creator of 'Mac611 - Mobile Mac Support' (designed exclusively for an iPhone/iPod touch)

Turn ON keyboard backlight?

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