Suspend does work only after half minute delay.

[Jarno Suni]

I am using Xubuntu 20.04.
xfce4-session-logout --suspend
exits with 0, but suspends only after long delay. This happens only if I have xfce4-screensaver running, even if it is set not to lock screen on suspend.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-31-generic 5.4.0-31.35
ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
Uname: Linux 5.4.0-31-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: jarnos 1125 F.... pulseaudio
 /dev/snd/controlC1: jarnos 1125 F.... pulseaudio
 /dev/snd/controlC0: jarnos 1125 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
Date: Tue May 26 11:33:29 2020
InstallationDate: Installed on 2020-05-03 (22 days ago)
InstallationMedia: Xubuntu Core 20.04 - amd64 - 20200423
IwConfig:
 lo no wireless extensions.

 enp3s0 no wireless extensions.
MachineType: Dell Inc. OptiPlex 745
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-31-generic root=UUID=f2d9359d-8b8e-46c4-9f37-452c3dd06417 ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-31-generic N/A
 linux-backports-modules-5.4.0-31-generic N/A
 linux-firmware 1.187
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/26/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.6.6
dmi.board.name: 0RF703
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.6.6:bd06/26/2011:svnDellInc.:pnOptiPlex745:pvr:rvnDellInc.:rn0RF703:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 745
dmi.sys.vendor: Dell Inc.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Kai-Heng Feng (kaihengfeng)]

I don't think it's a kernel issue. Some userspace process blocked the suspend. Can you please test whether suspend works under Ubuntu live USB?

[Jarno Suni (jarnos)]

I made a couple of tests by Xubuntu Core 20.04 live USB (downloaded from https://unit193.net/xubuntu/core/). First time was by default settings i.e. 'lock screen when system is going to sleep' checked - I think that is not a good default setting for live - and the other time when it was not checked. Both times it did not suspend. The former did blank screen immediately, the other one after delay of several seconds. No keyboard activity did have an effect so I had to use power button.

[Kai-Heng Feng (kaihengfeng)]

Please use Ubuntu proper to test: http://cdimages.ubuntu.com/daily-live/current/

[Jarno Suni (jarnos)]

No, I would not waste my time on that.

[braoult (braoult)]

XUbuntu 20.04: In Screensaver Preferences, lock screen is disabled (in fact when enabled it was a loop logging, impossible to unlock). However, still locking (fortunately with no loop), don't know where this lock comes from.