You have been subscribed to a public bug:
journalctl -f
pkexec[11203]: gdm: Error executing command as another user: Not
authorized [USER=root] [TTY=unknown] [CWD=/var/lib/gdm3]
[COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-
brightness 155]
lsb_release -a
LSB Version:
core-9.20160110ubuntu5-amd64:core-9.20160110ubuntu5-noarch:security-9.20160110ubuntu5-amd64:security-9.20160110ubuntu5-noarch
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful
---
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: hdzhong 3573 F.... pulseaudio
/dev/snd/controlC1: hdzhong 3573 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 17.10
HibernationDevice: RESUME=UUID=cddb6340-5d33-4544-9dd1-2082abe73463
InstallationDate: Installed on 2014-05-02 (1272 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: LENOVO 20CDS00600
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-lowlatency
root=UUID=dcc341ae-1338-4d98-ab7e-89eebf8e35fc ro cgroup_enable=memory
swapaccount=1 quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.13.0-16.19-lowlatency 4.13.4
RelatedPackageVersions:
linux-restricted-modules-4.13.0-16-lowlatency N/A
linux-backports-modules-4.13.0-16-lowlatency N/A
linux-firmware 1.169
Tags: wayland-session artful wayland-session
Uname: Linux 4.13.0-16-lowlatency x86_64
UnreportableReason: The report belongs to a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo www-data
_MarkForUpload: False
dmi.bios.date: 09/23/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: GQET47WW (1.27 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CDS00600
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50518 Std
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrGQET47WW(1.27):bd09/23/2015:svnLENOVO:pn20CDS00600:pvrThinkPadS1Yoga:rvnLENOVO:rn20CDS00600:rvrSDK0E50518Std:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad S1 Yoga
dmi.product.name: 20CDS00600
dmi.product.version: ThinkPad S1 Yoga
dmi.sys.vendor: LENOVO
** Affects: gnome-settings-daemon (Ubuntu)
Importance: Medium
Status: Incomplete
** Tags: apport-collected artful gdm gnome-settings-daemon pkexec
wayland-session
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Error for gdm executing gsd-backlight-helper --set-brightness
https://bugs.launchpad.net/bugs/1726684
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Packages, which is subscribed to gnome-settings-daemon in Ubuntu.
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