Dock icons are shown very slow

[Antonio Lara]

When I open a new app (e.g a terminal window) in the dock does not appear nothing for about 15 seconds, when the icon of the terminal appears. It is incredibly annoying since I work open and closing apps and don't know where they are since the dock is updated every 15 seconds

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.16
ProcVersionSignature: Ubuntu 5.4.0-20.24-generic 5.4.27
Uname: Linux 5.4.0-20-generic x86_64
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sun Mar 29 13:19:25 2020
InstallationDate: Installed on 2020-02-20 (37 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)
VarLogDistupgradeTermlog:

mtime.conffile..etc.update-manager.release-upgrades: 2020-03-25T18:04:30.897651

[lotuspsychje (lotuspsychje)]

Thank you for reporting this bug and make ubuntu better!

Can you reproduce this bug on a clean daily .iso of 20.04?

[Antonio Lara (antoniol00)]

Sorry but are you asking to reinstall ubuntu with the clean daily .iso of focal fossa?

[lotuspsychje (lotuspsychje)]

Your install medium says 19.10 so i assume you upgraded in early stage
from 19.10 to 20.04
so its reccomended to try reproduce this on a clean daily too, this
not specificly has to be a clean install, you could also try a liveusb
and compare

[Launchpad Janitor (janitor)]

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

[Ralph (ralph-s)]

I'm seeing the same problem on my system upgraded to 20.04 from 19.10.

It only occurs running the Ubuntu session on wayland, X11 works fine and as expected.

[Daniel van Vugt (vanvugt)]

Possibly related to bug 1874578, but regardless please report the bug to the developers at:

https://github.com/micheleg/dash-to-dock/issues

[Sebastien Bacher (seb128)]

@Antonio do you use xorg or wayland? could you add your 'journalctl -b 0' log after getting the issue?

[Mordi (mrdc76)]

I have this on a system upgraded from 18.04 and running Wayland. The bug does not appear on X session.

On another system with a clean install of 20.04, the bug does not appear on a Wayland session.

[Nicolas Damgaard Larsen (ndl101)]

Confirming this issue on an 19.10 to 20.04 upgrade (originally 18.04). Problem persisted after a dconf reset. Problem also oberserved on a fresh 20.04 with old profile. Problem also observed on fresh install in virtualbox with a fresh user profile. All were minimal installs if that matters which I highly doubt. Problem seems to occur inconsistently across boots/logins.

[Nicolas Damgaard Larsen (ndl101)]

In addition to post #10:

Reproducible by running

'gsettings set org.gnome.shell.extensions.dash-to-dock show-mounts false'

and restarting gnome. Toggling it back to 'true' and restarting gnome clears the issue for me.

Running X11.

[Joerg Baeuerle (schorsch81)]

I have the same problem, even worse with a delay of 25 seconds between program start and dock update.

This is a fresh install of 20.04 LTS on a clean laptop with a wiped hard disk.

schorsch@jbook:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal

schorsch@jbook:~$ uname -a
Linux jbook 5.4.0-29-generic #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

The only thing I did after the new installation was installing the dash-to-panel Gnome extension. Once, I deactivated that extension and the Ubuntu Dock showed again, I noticed the delay. However, I cannot say for sure if the delay has been there from the beginning.

I completely removed the dash-to-panel extension using apt, but the Ubuntu Dock delay is still there.

[Dehuan Xin (dxin2015)]

I can easily reproduce this issue when there is removable USB medium connected, e.g. a phone or usb drive that causes a "mount" icon to show up on the dock.
Once I boot with USB medium connected, the dock will take a long time to launch.

[xcom (xcom)]

I can also confirm this issue on my desktop PC