Screen lock timeout not working

[Mahdi Golestaneh]

The screen off & lock timeout is not working.
Although, I tested the sleep timeout and It is working

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu7.1
ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18
Uname: Linux 4.15.0-45-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity:Unity7:ubuntu
Date: Tue Mar 5 04:45:22 2019
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
 anbox, 1, 4.15.0-29-generic, x86_64: installed
 anbox, 1, 4.15.0-45-generic, x86_64: installed
 virtualbox, 5.2.10, 4.15.0-29-generic, x86_64: installed
 virtualbox, 5.2.10, 4.15.0-45-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Skylake GT2 [HD Graphics 520] [17aa:5048]
InstallationDate: Installed on 2018-06-10 (267 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 04f2:b541 Chicony Electronics Co., Ltd
 Bus 001 Device 003: ID 8087:0a2a Intel Corp.
 Bus 001 Device 002: ID 062a:4101 Creative Labs Wireless Keyboard/Mouse
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 20EVCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic root=UUID=7847e82b-1b84-4370-8b40-2e7a2a4dc74b ro quiet splash vt.handoff=1
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/31/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: R00ET57W (1.32 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20EVCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrR00ET57W(1.32):bd10/31/2017:svnLENOVO:pn20EVCTO1WW:pvrThinkPadE560:rvnLENOVO:rn20EVCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad E560
dmi.product.name: 20EVCTO1WW
dmi.product.version: ThinkPad E560
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1
version.libdrm2: libdrm2 2.4.95-1~18.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1~18.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.2-0ubuntu1~18.04.2
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
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

[Daniel van Vugt (vanvugt)]

I recall this issue was a problem for Unity desktops. Although I expect a different package is to blame (please reassign).

I think it's fixed in Gnome Shell though.