Night Light only works on one Monitor

[Ivo Ruetsche]

Hi

If I activate the Night Light mode with an external monitor connected, the mode is only on the external monitor activated.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CompositorRunning: None
Date: Tue Mar 20 23:12:36 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Lenovo HD Graphics 620 [17aa:224b]
InstallationDate: Installed on 2018-03-19 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180319)
MachineType: LENOVO 20HF0016MZ
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-12-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/26/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N1WET45W (1.24 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20HF0016MZ
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN1WET45W(1.24):bd02/26/2018:svnLENOVO:pn20HF0016MZ:pvrThinkPadT470s:rvnLENOVO:rn20HF0016MZ:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T470s
dmi.product.name: 20HF0016MZ
dmi.product.version: ThinkPad T470s
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.90-1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc4-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc4-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

Upstream said it's a gnome-settings-daemon issue, see https://gitlab.gnome.org/GNOME/gnome-settings-daemon/issues/6

[Digital Spinner (digital-spinner)]

Yes the issue is annoying.. To have the second screen Night Light enabled, change the default screen to the other screen and back to first one - the second screen should have Night Light enabled. The same thing you have to do when disabling Night Light. - at least it works for me like this.

[Sebastien Bacher (seb128)]

the issue should be fixed with 3.28.1 in bionic

[abhishek (abhishek-smit)]

I am using GNOME Shell 3.28.3 in 18.04.1 and the issue persists with three monitors.

I use two external monitors. Night Light works on the first two but not on the third one.

[Helmut Debes (helmut-debes)]

I am using GNOME Shell 3.28.3 in 18.04.1 and the issue persists on one of four monitors.

[Thomas Mayer (thomas303)]

I'm using 18.04.1, together with gnome flashback (3.28.0-1ubuntu1.3).

For me, night mode only works with one screen, which is the primary screen. In my case, this is an external screen.

With all 3 screens attached however, night mode however does not work with my two other monitors:
- one internal screen of the laptop
- another external screen

[Chris (cnizzardini)]

This is an issue on my laptop running Ubuntu 18.04.1 LTS

product: Aspire VN7-791 (Aspire VN7-791_091D_1.11)
vendor: Acer
*-display
description: VGA compatible controller
product: 4th Gen Core Processor Integrated Graphics Controller

Portable monitor is an Asus MB168B connected via USB 3.0

[Christian Brüggemann (cbruegg)]

This is still not fixed even in Ubuntu 19.04 Beta.

[kinghat (kinghat)]

have this issue with 18.04.2 with my 3 identical monitors.

[fermulator (fermulator)]

similar issue in 18.04.4, `gnome-shell 3.28.4`

$ xrandr | grep " connected"
eDP-1 connected (normal left inverted right x axis y axis)
DP-1-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 521mm x 293mm
DP-1-2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm

eDP-1 is the built-in laptop monitor; (lid is closed) [1st]
DP-1-X are the external monitors over display port; (in active use, dual monitor) [2nd,3rd]

primary display is 2nd, secondary display is 3rd

[Hassan El Jacifi (waver)]

Hi Guys,

Bug present on Ubuntu Groovy.

gnome-shell-common 3.38.1-1ubuntu1
gnome-control-center 1:3.38.1-1ubuntu1

DVI-D-0 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 477mm x 268mm
DP-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 598mm x 336mm

Night mode enabled but it's only set on DVI-D-0 and missing from DP-0