Questions tagged [21.10]
Ubuntu 21.10 (Impish Indri) is a non-LTS version released on October 14, 2021. It went End Of Life (EOL) on 14 July 2022. Only use this tag if your question is version-specific; and being an EOL release, only questions related to upgrading to a supported release are now on-topic on this site.
681
questions
197
votes
8
answers
338k
views
apt-key deprecation warning when updating system: "Key is stored in legacy trusted.gpg keyring"
Recently I've noticed some issues when running apt where the system will warn me of a keyring deprecation:
Reading package lists... Done
Building dependency tree... Done
Reading state information... ...
- 22.7k
75
votes
4
answers
8k
views
new ctrl-period key sequence default in 21.10?
I just moved up from 21.04 to 21.10. I have the 1Password extension installed in Firefox, which uses ctrl-period keystroke to launch the password manager. I've been using that since... uh... 18.10? 19....
- 852
34
votes
2
answers
4k
views
Ubuntu 21.10 keyboard shortcut Ctrl+. changed - How to disable or change
I recently updated from Ubuntu 21.04 to 21.10 and the upgrade has changed the behaviour of my Ctrl+. key combo.
It didn't used to do anything, which allowed application specific shortcuts, such as ...
- 473
33
votes
2
answers
15k
views
How to remove Snap completely without losing Firefox?
I am wondering whether or not there is a way to completely remove Snap from Ubuntu 21.10 (Impish Indri) without losing the ability to install Ubuntu's default browser Firefox.
When I just recently ...
- 6,266
20
votes
2
answers
51k
views
netstat: command not found
I installed xampp to run a server as part of a guide, but it wasn't working. After trying to run it from command line, I got the following output:
$ sudo ./xampp start panel
Starting XAMPP for Linux 8....
- 1,366
16
votes
4
answers
6k
views
Is it possible to avoid Firefox as Snap installation and keep deb-version on Ubuntu 21.10 flavor?
I have just installed fresh Ubuntu MATE 21.10 system.
Then I ran update-manager manually to check and get some new updates.
It showed a surprise for me - it will remove Firefox deb-package as shown on ...
- 101k
15
votes
1
answer
9k
views
Creating a hyperlink from command line output on a terminal
The command hostnamectl, when executed with no argument, will dump a bunch of information to the terminal. One of that is the Operating System line as shown in the sample output below:
$ hostnamectl
...
- 11.3k
14
votes
2
answers
61k
views
How to install Qt6 on Ubuntu 21.10
When trying to open a program that requires Qt6, it gives error while loading shared libraries: libQt6Network.so.6: cannot open shared object file: No such file or directory. I tried installing Qt6 by ...
- 243
14
votes
3
answers
26k
views
How do I enable Wayland on Ubuntu 21.10 (NVIDIA)?
I installed Ubuntu 21.10 on my laptop today, but I'm still not seeing the option on the login screen to use Wayland instead of X11. I've really been looking forward to getting GNOME 40 with multi-...
- 411
12
votes
2
answers
9k
views
How do I install Ubuntu 21.10 in WSL on Windows 11?
I do not see the option to install Ubuntu 21.10 in the Windows Store.
I would like to install Ubuntu 21.10 in WSL on Windows 11 with the graphical support (WSLg). I have searched for "Ubuntu&...
- 231
11
votes
4
answers
20k
views
Bluetooth scan doesn't detect any device on Ubuntu 21.10
I have just bought a Tp-link bluetooth 5.0 usb adapter (UB500), I've checked and its chip is Realtek RTL8761B.
It works just fine on Windows 10, but I'm having problems on Ubuntu.
I'm running Ubuntu ...
- 113
10
votes
6
answers
24k
views
Can't transfer files from Android to Ubuntu via USB cable
I am using Ubuntu 21.10. I tried to transfer files from my Android phone (Redmi Note 4) to my laptop via USB cable by enabling the file transfer option on the phone. Ubuntu detects my phone, but when ...
- 101
10
votes
1
answer
1k
views
Using CLI "mail" command
I feel a little silly asking this question... as the answer may be quite simple... but searching here on AU, or on Google, or man mail, hasn't given me the answer.
If I start mail, I see this:
"/...
- 71.3k
10
votes
2
answers
425
views
Is it possible to remove Snapd with Glib libraries completely without ruining the system?
I have just installed Ubuntu MATE 21.10 and discovered two interesting packages which contain snapd in the name - gir1.2-snapd-1 and libsnapd-glib1:
$ dpkg -l | grep snapd
ii gir1.2-snapd-1:amd64 ...
- 101k
9
votes
2
answers
18k
views
Ubuntu 21.10 switched to nftables, so why is iptables still available?
According to 21.10 release notes:
nftables is now the default backend for the firewall.
However, having installed Ubuntu 21.10, I can see I still have iptables (and ufw) installed by default:
m@m-...
- 295
9
votes
3
answers
7k
views
Installation screen cut off when installing Ubuntu in VirtualBox
I have Ubuntu 21.10 with VirtualBox 6.1.26.
I am trying to install Ubuntu 21.10 in a virtual machine.
When I choose English as installation language, the keyboard selection screen looks like this:
As ...
- 5,174
9
votes
4
answers
9k
views
How to Change Ubuntu 21.10 GDM background to a Image or to a Color
How to Change Ubuntu 21.10 gdm background to a Image or to a Color.
Below Pic is of Ubuntu 20.04 GDM Login Screen
Is there a way similar to this post which is for Ubuntu 20.04 How do I change login ...
- 22.7k
9
votes
3
answers
2k
views
Xubuntu - Desktop Visible After Suspend Before Lock Screen
Xubuntu 21.10 is a pretty solid system with a lot going for it. That said, there are a few little things that can make a person scratch their head. One issue that I'm facing is that the desktop (and ...
- 22.7k
9
votes
2
answers
4k
views
Enabling fingerprint login in Xubuntu
I have looked around and found that Ubuntu supports fingerprint reading, but I can't find any information for Xubuntu. I have tried to find the equivalent of Settings → Users → Authentication & ...
- 683
8
votes
1
answer
2k
views
"Warning" window after launching computer (Ubuntu 21.10)
This warning window keeps popping up since I've updated to Ubuntu 21.04 and 21.10. How do I get that solved?
- 183
8
votes
4
answers
8k
views
after Ubuntu 21.10 upgrade: "cannot attach cgroup program" operation not permitted
Right after upgrading a Ubuntu 21.04 to 21.10, I got this issue:
Chromium/Firefox won't start.
The error(seen in terminal) is:
$ firefox
cannot attach cgroup program: Operation not permitted
- 1,719
8
votes
2
answers
8k
views
Cannot upgrade from 21.10 to 22.04 [duplicate]
Since 21.10 isn't supported anymore, I'd like to upgrade to 22.04. However, running
sudo do-release-upgrade
gives the following output
...
Please install all available updates for your release before ...
8
votes
1
answer
5k
views
Change virtual desktops orientation to vertical?
I've installed newest Ubuntu and virtual desktops are laid out horizontally. How can I change them to vertical layout?
- 419
8
votes
1
answer
5k
views
Kernel panic on Ubuntu 21.10 AMDGPU
I'm trying to boot the latest Ubuntu 21.10 on Lenovo ThinkPad E14 (Ryzen 3 5300U with integrated Renoir graphics), and I'm stuck on Lenovo logo. When trying to boot with safe graphics, I got the ...
- 1,262
8
votes
1
answer
255
views
How can I delay (but not disable) the screen lock on suspend/lid close?
I would like my screen to lock automatically when I close the lid (or otherwise trigger a suspend), but only if I leave it closed for a certain amount of time, e.g. 5 minutes. That is, if I close the ...
- 4,486
8
votes
1
answer
2k
views
Ubuntu 21.10 Thunderbird - IPDL protocol error: Handler returned error code!
Thunderbird 91.3.1
If I start Thunderbird from the terminal, and then select any email message to read, I see the following error...
IPDL protocol error: Handler returned error code!
###!!! [Parent][...
- 71.3k
7
votes
4
answers
2k
views
How do I stop the GUI (in Kubuntu 21.10)
I need to stop the GUI and access a TTY for the NVIDIA drivers. I found this question. However, when I tried sudo service lightdm stop (or the same with gdm), it said this:
$ sudo service lightdm stop
...
- 3,534
7
votes
3
answers
10k
views
How to install php7.4, 5.6 ubuntu 21.10
How to install the old version of PHP.
It does not work at the moment repository
sudo add-apt-repository -y ppa:ondrej/php
Then:
The repository 'http://ppa.launchpad.net/ondrej/php/ubuntu impish ...
- 73
7
votes
1
answer
8k
views
Gnome browser addon for installing extensions does not work on Firefox in Ubuntu 21.10 [duplicate]
I recently upgraded to Ubuntu 21.10 and found that the browser addon for installing Gnome extensions doesn't seem to be working with Firefox. I get the following error when I visit https://extensions....
- 277
7
votes
1
answer
8k
views
Problem with libicu66 during installation php-intl extension on Ubuntu 21.10
sudo apt install php7.0-intl
Output:
The following packages have unmet dependencies:
php7.0-intl : Depends: libicu66 (>= 66.1-1~) but it is not going to be installed
E: Unable to correct problems,...
- 351
7
votes
3
answers
13k
views
GNOME extension is incompatible
I used Ubuntu 20.04 for a few months. This is the third I'm using Ubuntu 21.10 and I cannot install this GNOME extension: Emoji Selector
How can I fix this?
- 79
7
votes
2
answers
896
views
Ubuntu 21.10 - Thunderbird 91.x.x drops (movemail) mbox support!
I just upgraded from Ubuntu 21.04 to Ubuntu 21.10.
Baring a few glitches here and there, it's now running ok.
However, I just discovered that Thunderbird 91.x.x removed movemail support! That means ...
- 71.3k
7
votes
0
answers
794
views
Hoe to link swapfile to RESUME variable on LUKS encrypted drive? | Ubuntu 21.10
I want to have 32GB of SWAP on LUKS encrypted filesystem and have hibernation enabled. My basic swap partition was 1GB, and I've made ´/swapfile'of 31GB. I first tried with fallocate command as ...
- 71
6
votes
2
answers
3k
views
Strange file issues on Ubuntu 21.10 with ZFS
After installing or upgrading to Ubuntu 21.10, with the ZFS option, I started to experience strange issues.
For example, on the command line, I have started to see errors like this:
Cannot access '...
- 42.4k
6
votes
3
answers
5k
views
21.10 Firefox Missing Profiles
I upgraded 21.04 to 21.10 and have a couple of issues which I'll separate out. The first is Firefox will not launch. Or rather it does, but only to give the error
Your Firefox profile cannot be ...
- 71
6
votes
3
answers
3k
views
Set default visible columns for Files
I've seen this question:
How to set visible columns default for the 'Files' file manager?
and would like to ask how to do it now in Ubuntu 21.10 (Files 40.2) because the Preferences dialog no ...
- 449
6
votes
1
answer
13k
views
Using wildcards in "sources" for `rsync` command
I am trying to backup some files on another drive using rsync.
As a test case, I am trying the following command:
rsync -Rav --delete --stats /home/my_user/bin* "$dest"
This command will ...
- 11.3k
6
votes
2
answers
2k
views
Upgrading Raspberry Pi from Ubuntu 21.10
I have a Raspberry Pi running Ubuntu 21.10, which I recently learned is EOL. No worries, I'll just upgrade to the next version (which, happily enough, is an LTS release)... or so I thought...
I'd ...
- 269
6
votes
1
answer
1k
views
Libreoffice broke after updating to Ubuntu 21.10
When I first updated to Ubuntu 21.10, LibreOffice just stopped working. However, I found out that some java dependencies where missing. After downloading them, LibreOffice worked again. The only ...
- 73
6
votes
2
answers
2k
views
Bluetooth keeps turning itself on after startup
I have pretty stock Ubuntu 21.10 on my Thinkpad T440p. My issue is bluetooth keeps turning itself on after startup/reboot.
I've tried configuring TLP to disable bluetooth at startup, and to restore ...
anon
6
votes
1
answer
3k
views
How can I remove the gnome-terminal title bar using pixel saver in ubuntu 21.10
I have a gnome extension pixel saver. When maximizing the terminal, I expect the title bar to be merged with the top bar. However, that does not happen in ubuntu 21.10. How can I change this ?
- 69
6
votes
3
answers
12k
views
My desktop icons disappeared when I upgraded to Ubuntu 21.10
After upgrading my machine from Ubuntu 21.04 to 21.10, the desktop has no icons. Even the default Trash and Home icons are not visible. How can I bring back the icons?
env | grep XDG_CURRENT_DESKTOP ...
- 396
6
votes
2
answers
2k
views
Defaulting to or Persisting "Always on Visible Workspace"
How do I make the "Always on Visible Workspace" option persist across Suspend, login, and reboot? I use this option daily with the same few app windows. The "AoVW" option resets to ...
- 426
6
votes
1
answer
3k
views
How to set workspaces in Ubuntu 21.10?
How can a row of six workspaces be set in the top panel in Ubuntu 21.10?
6
votes
2
answers
3k
views
Missing iscsi_tcp kernel module in Ubuntu 21.10 for Raspberry Pi ARM64
I have just done a fresh install of Ubuntu 21.10 for Raspberry Pi ARM64 in order to try out the new release.
After performing an apt upgrade and updating the iscsi initiator name I tried to run
sudo ...
- 173
6
votes
1
answer
2k
views
Ubuntu 21.10 on Dell XPS 13 9310 WiFi Killer AX500s DBS stopped working in kernel 5.13.0-21-generic
*Edited after super helpful chat with @chili555 that I botched by trying too many things at the same time...
The WiFi adapter works in kernel 5.13.0.20-generic, but in 5.13.0-21 it's inactive and ...
- 116
6
votes
0
answers
14k
views
21.10 Removed Repositories? [closed]
Need help with these errors, I'm running the Ubuntu version (21.10) from the Raspberry Pi Imager.
Reading package lists... Done
E: The repository 'http://ports.ubuntu.com/ubuntu-ports impish Release' ...
6
votes
1
answer
512
views
'Files' window doesn't show in taskbar when using Dash to Panel
The 'Files' window doesn't show in the taskbar. Any other application will show when started but files does not. I'm running dash to panel on Ubuntu 21.10. Is there a setting I'm missing?
~$ wmctrl -m
...
- 111
5
votes
1
answer
2k
views
Fresh 21.10 install can't play .mp4 files - what to do?
I'm a little surprised that my fresh install of Ubuntu 21.10 can't play .mp4 files. This seems like a rather basic ability. Anyway, after getting very unhelpful errors in VLC, I installed the default ...
- 1,255
5
votes
1
answer
5k
views
How to compile a GTK4 application in Ubuntu 21.10?
I am trying to compile a C GUI application using GTK4. I was previously told here that both Ubuntu 21.04 and 21.10 would have both GTK3 and GTK4. However, when I installed Ubuntu 21.04 only GTK3 was ...
- 323