Slack snap - window has no icon

tigwke · November 21, 2018, 7:00pm

Hi gionn - reading through the thread, other commenters said that slack fixed it in release 3.1.0 so I’m curious what version of Slack you are using and what desktop environment and/or window manager you might be using.

mamantoha · December 18, 2018, 1:39pm

Ubuntu 18.10, Plasma 5.14. Issue still exist

mithrial · December 18, 2018, 5:26pm

Same problem with Manjaro 18, Xfce GTK3 4.13, snapd 2.35.5, and slack 3.3.3-9.

ali1234 · December 18, 2018, 7:47pm

This continues to be a problem because Slack does not provide an icon using the NET_WM_ICON property.

DiegU_u · December 26, 2018, 10:58pm

Fedora 29, It worked for me

dontgo2sleep · January 2, 2019, 9:14pm

Linux Mint 19.1, Cinnamon desktop, still has no icon.
I already tried to add StartupWMClass=Slack to the desktop file.

they4kman · January 3, 2019, 11:04pm

I am on Ubuntu 18.10, running XFCE. My indicator icon was showing the Slacktothorpe properly, but the window list displayed the default fallback icon.

As a workaround, Paul Evans’ xseticon may be used to change the icon of an already-running Slack instance. This seems to work even after closing the window and reopening it from the tray/indicator.

Clone https://github.com/xeyownt/xseticon

Install dependencies

sudo apt install libxmu-headers libgd-dev libxmu-dev

Do the make dance
```
make
```
Install the binary somewhere on your $PATH
```
sudo cp xseticon /usr/local/bin
```
With the Slack window visible, execute the following, which will provide crosshairs to select the Slack window
```
xseticon /snap/slack/9/usr/share/pixmaps/slack.png
```
bada bing, bada boom

sarovin · January 16, 2019, 9:37am

Hi,
I have the same problem with the last version:
Slack: 3.3.4
Snap: 2.36.3-1
Xfce4: 4.12

anton123 · February 27, 2019, 10:25pm

Linux Mint 19.1, Cinnamon desktop, still has no icon.
StartupWMClass=Slack didn’t help
Is there a workaround?

mariods · February 28, 2019, 11:49am

I was having this issue on Debian 9 (Stretch), adding the StartupWMClass=Slack line to the .desktop file solved it for me.

djeebus · May 4, 2019, 10:27pm

Can confirm that the desktop file mod fixes it in ubuntu 18.10 as well.

ali1234 · May 5, 2019, 1:12pm

It still isn’t setting an EWMH icon. However, as of 3.4.0, Slack sets _NET_WM_WINDOW_TYPE = _NET_WM_WINDOW_TYPE_MAIN. This causes Slack to be left out of the alt-tab menu. _NET_WM_WINDOW_TYPE_MAIN is not defined in the EWMH spec and has no results on a Google search.

Lin-Buo-Ren · May 5, 2019, 4:47pm

Note that the xseticon utility is now packaged as a snap:

shorstki · May 27, 2019, 11:26am

Worked for me too! Thanks. It should be somehow added to the app because any update removes this change.

felizi · July 24, 2019, 12:16am

Linux Mint 19 with Cinnamon desktop, still has no icon. StartupWMClass=Slack didn’t help me too.

thimoteus · August 26, 2019, 9:43pm

Linux Mint still misses the tray icon, but only with the snap version.

cowsay · September 4, 2019, 7:32pm

Same issue on Solus Budgie. Task icon is visible, but no tray icon. If I close the Slack window (close to tray enabled in Slack settings), then there’s no way to restore it other than relaunching Slack.

oshan · August 1, 2020, 2:39am

I’m using xubuntu 18.04 and for me both icons are missing. task bar and notification indicator.
found this solution from manjaro forum, and it works https://flathub.org/apps/details/com.slack.Slack

koshyviv · November 11, 2020, 3:15pm

Having the same issue, recently upgraded from 18.04 to 20.04

Laski · April 23, 2021, 3:43pm

Cinnamon user here! Adding:

Icon=/snap/slack/current/usr/share/pixmaps/slack.png

to the .desktop file finally worked.