** No longer affects: linux (Ubuntu)
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Confirmed
Status in
Mario, as for the lock/idle problem is a different issue.
Things depend also on the hardware and how the kernel supports the notification
of the kbd backlight changes, but if all is well supported this change should
help:
** Branch linked: lp:~3v1n0/unity-settings-daemon/keep-cached-kbd-
backlight-updated
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Title:
Keyboard Backlight Turns on at boot
** Branch linked: lp:~seb128/unity-settings-daemon/better-keyboard-
backlight
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Title:
Keyboard Backlight Turns on at boot
Status
** Tags added: desktop-trello-import
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Confirmed
Status in
** Changed in: gnome-settings-daemon
Status: Unknown => Fix Released
** Changed in: gnome-settings-daemon
Importance: Unknown => Medium
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the log doesn't seem to have useful clue ... could you "stop unity-
settings-daemon" and lock/unlock the screen, just to see if that's also
doing it without usd?
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Sure. Here you go.
** Attachment added: "usd.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510344/+attachment/4661498/+files/usd.txt
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@Mario, thanks for testing the fix! I'm going to upload/SRU that one to
start then. Could you run unity-settings-daemon with --debug and share
the log? it might give an hint on what is happening with the other issue
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Well there are really two problems here as I understand it.
I can however confirm that that the first problem (backlight turns on on it's
own at boot) is fixed by this patch. So that's a definite improvement.
The second problem (backlight turns on on it's own after unlock) I can still
hum, we should backport that commit https://git.gnome.org/browse/gnome-
settings-daemon/commit/?id=c311de7 ... it might be enough to fix the
issue, could somebody try to build unity-settings-daemon with that
simple change and see if it's enough to resolve the issue?
** Changed in:
** Tags removed: patch
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Confirmed
Status in One Hundred
Added to Trello: https://trello.com/c/WMkMUwl1/3-bug-1510344-keyboard-
backlight-turns-on-at-boot
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Title:
Keyboard Backlight Turns
The attachment "0001-Fixed-dell-laptop-keyboard-backlight.patch" seems
to be a patch. If it isn't, please remove the "patch" flag from the
attachment, remove the "patch" tag, and if you are a member of the
~ubuntu-reviewers, unsubscribe the team.
[This is an automated message performed by a
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: unity-settings-daemon (Ubuntu)
Status: New => Confirmed
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Based on comments #46-#50, closing out the linux kernel related tasks.
Thanks to Allen's in depth investigation it's clear that this is caused
by Unity.
** Also affects: unity-settings-daemon (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status:
I am working in Dell. I have some digging on this issue. There are two
symptoms reported in the thread – the keyboard backlight unexpectedly
turns ON on boot and after the resume from a screen lock. These are due
to two different causes.
- the backlight unexpectedly turns ON on boot, regardless
Also appears to work on my Dell XPS 13 9343. Have not seen the keyboard
backlight come on for the past couple of days.
16.04
4.4.0-22-generic
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This worked for my P50 also. Thanks.
16.04
4.6.0-040600rc1
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
This workaround worked for me on a Dell Latitude E7450 Ubuntu 16.04
kernel 4.6 RC 4
In the file:
/etc/dbus-1/system.d/org.freedesktop.UPower.conf
change:
to:
and reboot.
Source:
https://askubuntu.com/questions/700069/keyboard-backlight-turns-on-after-lock-screen-display-on
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This workaround worked for me on a Dell Latitude E5530 running Ubuntu 16.04.
In the file:
/etc/dbus-1/system.d/org.freedesktop.UPower.conf
change:
to:
and reboot.
Source:
https://askubuntu.com/questions/700069/keyboard-backlight-turns-on-after-lock-screen-display-on
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This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report[0]? That will allow the upstream Developers to examine the issue,
and may provide a quicker resolution to the bug.
Please follow the instructions on
Tested on latest upstream kernel linux-image-4.6.0-040600rc6. Problem
persists.
** Tags added: kernel-bug-exists-upstream
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Title:
I forgot to add, it was clean install of 16.04.
15.10 on the same machine worked without this issue as well as Mint 17.3.
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Title:
I am experiencing the very same issue on my Lenovo Thinkpad P50.
16.04
4.6.0-040600rc1
It is really annoying.
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Title:
Keyboard
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
Followup on #39 - I have just noticed that the backlight switches on
after few seconds of inactivity (14.04.4 with 4.2 kernel). AFAIK this
wasn't the case with 4.4 kernel (16.04).
I also checked and after opening the laptop lid and waking up, the
backlight is off, just as in 4.4 (at least on my
I can partially reproduce this bug on Dell Latitude E6420.
Namely in 16.04 (4.4 kernel) backlight was always on after (re)boot and
screenlock, however waking up (opening laptop) does not switch backlight
on. Moreover I could control the backlight (i.e. switch it off),
contrary to some reports
Confirmed with XPS 13 9343 with 16.04 LTS. In 15.04 the keyboard
backlight worked perfectly.
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Title:
Keyboard Backlight Turns on at
I confirm that this bug is still present in Dell Inspiron 7537, upgraded
from 15.04 (via 15.10). In 15.04 wasn't.
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Title:
Keyboard
I confirm that this bug is still present on 9343 with 16.04 LTS.
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Title:
Keyboard Backlight Turns on at boot
Status in Dell
If it annoys me too much, I do three times
echo 0|sudo tee /sys/class/leds/dell\:\:kbd_backlight/brightness
This tends to keep the backlight off for a while.
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This bug is so annoying because of the design of the keyboard backlight
in a lot of Dell laptops (incl mine, 7537): in daytime the backlight
make keys unreadable (they are painted grey with the character in
transparent plastic). It is even annoying even when you type blindly:
you automatically try
I confirmed this bug is still present with Dell XPS 13 9343 on 16.04
release.
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Title:
Keyboard Backlight Turns on at boot
Status
Same with Dell e7470 on 16.04 release.
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Confirmed
Status in
Problem occurs with dell latitude e7450 4.6 kernel rc4 and latest bios
a12
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Title:
Keyboard Backlight Turns on at boot
Status in
The bug still exist with the 4.5 Kernel on my Precision 7510.
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Title:
Keyboard Backlight Turns on at boot
Status in Dell
I see, that some changed in dell_laptop and dell_wmi modules are
appeared in kernel 4.5. Though I'm not sure, that it fixes topic
problem.
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** Tags added: patch
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Confirmed
Status in One Hundred
Hello,
i've attached a small patch that fix the problem on my Dell Precision
7510. Basically the function "kbd_set_state_safe" returns now null and
don't try to set a old state.
Regards, Andy
** Patch added: "0001-Fixed-dell-laptop-keyboard-backlight.patch"
Same bug with Dell XPS 13 9350. Very very annoying.
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Looks like nobody is interested in fixing this...
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On Apr 16, 2016 4:05 PM, "Balazs Wittmann" <1510...@bugs.launchpad.net>
wrote:
> This bug still exists in the
This bug still exists in the current 16.04 LTS daily build (2016.04.15)
with a 4.4.0 linux kernel. I have a Dell Inspiron 7537.
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Same bug with Dell XPS 13 9350.
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Confirmed
Status in One
I have the same issue as Balasz:
1. When I turn on or restart the notebook.
2. When I wake up the notebook.
3. When I don't use the keyboard and the touchpad for a few seconds.
on a Dell Inspiron 14r 5447.
Any update on how to solve this issue?
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Same for my on a Dell Inspiron 7535.
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Confirmed
Status in One
Same bug with Dell E6430s
** Also affects: linux
Importance: Undecided
Status: New
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Title:
Keyboard Backlight Turns on
Same issue on Dell E7440 with Wily kernel (in my case the HWE-kernel for
Ubuntu 14.04). Keyboard backlight user control is not respected, and it
turns on at various conditions, including boot and screen wake up from
sleep.
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similar with dall precision m4600 ubuntu 14.04, kernel 4.2.0. keyboard
backlight is turned on when power state changing (plug in, unplug, turn
on). it started after i upgrade kernel to version 4.2.0. earlier i was
using kernel 3.x (don't remember the exact version) and there was no
problem with
Same problem with Dell Inspiron 7520 - Ubuntu 15.10 clean install. Very
annoying...
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Title:
Keyboard Backlight Turns on at boot
I am wondering why nobody with some knowledge of the dell kernel module
does revise it and removes this boring behaviour. I expect this would be
pretty easy and that's why I am wondering whether there are dependencies
from BIOS version or other facts.
I enclose a python script which I use to keep
See enclosed script I use at login/resume,
with it's .desktop file for login and its's symlink in /etc/pm/sleep.d
** Attachment added: "xps13-kbd-backlight"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510344/+attachment/4539375/+files/xps13-kbd-backlight
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See enclosed script I used successfully at boot/resume,
calling it in /etc/rc.local
linking to it in /etc/pm/sleep.d
** Attachment added: "script to set/restore kbd backlight"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510344/+attachment/4537568/+files/xps13-kbd-backlight
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Blacklisting the module is not a solution to the problem, it just hides
it.
The problem is still that the state of the back light does not seem to
be properly restored under some conditions.
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Blacklisting prevents you from configuring the back light, e.g. the time
out.
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Title:
Keyboard Backlight Turns on at boot
Status
Does blacklisting the dell_laptop module have any adverse effects?
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Title:
Keyboard Backlight Turns on at boot
Status in Dell
I did not say that it was the solution.
I suggest this tip because at the moment NOT blackisting this module prevents
us to use the keyboard backlight feature.
This suggestion only focus on Dell Xps 13 9343, model that I own.
Blacklisting the module allows me to enjoy this feature.
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Seems like dell_laptop also provides some rfkill facilities, so
blacklisting is not a good idea.
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Title:
Keyboard Backlight Turns
I was facing to this behaviour.
I blacklisted the dell_laptop module and this issue was solved. Now my keyboard
backlight act as it should be.
in /etc/modprobe.d directory
create this file blacklist-dell.conf
and add in it the followinf thing : blacklist dell_laptop
then excute : sudo
Same problem here with a Dell Inspiron 7537 and I never experienced this
with earlier Ubuntu versions. The backlight automatically turns on in
the following situations for me (regardless of the previous settings):
1. When I turn on or restart the notebook.
2. When I wake up the notebook.
3. When
Addendum: I noticed the backlight also gets switched back on after not
using the keyboard and touchpad for a few seconds. I suspect this has
something to do with the way it acts when it is switched on normally:
After not typing anything or using the touchpad for a few seconds, the
backlight is
It also happens after waking up the laptop from sleep, not only on boot.
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Title:
Keyboard Backlight Turns on at boot
Status in
** Also affects: hundredpapercuts
Importance: Undecided
Status: New
** Changed in: hundredpapercuts
Status: New => Confirmed
** Changed in: dell-sputnik
Status: New => Confirmed
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in:
This is probably related to the change introduced in Linux 4.1. The Dell
keyboard driver can now control various settings about the keyboard
back-light and exposes control devices in /sys to change these settings.
Commit: 6cff8d60aa0aba5583ecda09984dbcb2f24cc28d
Same problem with Dell Inspiron
Ubuntu 15.10 clean install.
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Title:
Keyboard Backlight Turns on at boot
Status in Dell Sputnik:
Have the same problem with Dell Latitude E7450. It's possible to turn it
off using Fn+F10, but next boot it results in kb backlight being on. I
also noticed that it comes up each time I unlock my laptop after locking
screen using Ctrl+Alt+L.
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** Also affects: dell-sputnik
Importance: Undecided
Status: New
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Title:
Keyboard Backlight Turns on at boot
Status in
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