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Questions tagged [18.04]

Seventh LTS (Long Term Support) release of Ubuntu, code-named "Bionic Beaver". Released on 26th April, 2018. Will go End Of Life (EOL) April 2028. Only use this tag for version-specific questions.

265
votes
13answers
162k views

How can I remove Amazon search results from the dash or disable the feature?

How can I disable Amazon search results in the Unity dash?
82
votes
3answers
58k views

Right click not working on Ubuntu 18.04

I have installed Ubuntu 18.04 LTS on my HP Pavilion series laptop. After installing this version of Ubuntu, right click is not working of my touchpad. How can I solve this? BTW: This question does ...
75
votes
9answers
23k views

How can I install pdftk in Ubuntu 18.04 and later?

Is there any chance of getting pdftk working in Ubuntu 18.04? I need this for creating PDF files with a watermark in shell. Or, does anybody know a working alternative to pdftk to generate a PDF ...
70
votes
11answers
78k views

Enable fractional scaling for Ubuntu 18.04

I recently installed Ubuntu 18.04 and discovered that the fractional scaling option that was in 16.04 is no longer there. 200% is too big for my display, and this answer didn't work for me (the ...
56
votes
2answers
28k views

18.04 ctrl+shift to change language

Can I use Ctrl+Shift for changing languages? I can't set this hotkey for changing keyboard languages. At this moment Alt+Shift switch languages, but I can't see this hotkey in keyboard hotkeys list ...
42
votes
8answers
87k views

How do I Install CUDA on Ubuntu 18.04?

Is there any tutorial to install CUDA on Ubuntu 18.04? The instructions on the Nvidia website for 17.04 and 16.04 do not work for 18.04. I get a message telling me to reboot then re-run the ...
42
votes
3answers
26k views

How to Encrypt /home on Ubuntu 18.04?

Disappointed to see that the 18.04 installer no longer offers the option to encrypt the home directory. According to this bug report referenced in the installer, the recommended method for encryption ...
40
votes
2answers
45k views

ifconfig missing after Ubuntu 18.04 install

I've just installed Ubuntu 18.04 and selected "minimal install". I then tried to run ifconfig in the terminal and got the following message -bash: ifconfig: command not found How come the net-tools ...
40
votes
2answers
27k views

How to install pdftk on Ubuntu 18.04 Bionic? [duplicate]

I tried to install pdftk in Ubuntu 18.04. It seems to be that the package is missing from official repositories. How can I install pdftk?
38
votes
4answers
25k views

“Package 'docker-ce' has no installation candidate” in 18.04

I'm following the official Docker installation guide for docker-ce on Ubuntu. When I get to sudo apt install docker-ce I get E: Package 'docker-ce' has no installation candidate: $ sudo apt-get ...
38
votes
6answers
14k views

Ubuntu 18.04 - Dell XPS13 9370 no longer suspends on lid close

This was working perfectly on 17.10 but after upgrading to 18.04 yesterday, when the lid is closed the screen turns off but doesn't suspend properly. I travel around a lot and immediately noticed the ...
35
votes
4answers
46k views

How to diagnose/fix very slow boot on Ubuntu 18.04

There is a long time where SSD does nothing. How can I find the fault and fix it ? Already checked /etc/fstab, no swap or anything wrong there (32GB of RAM, no swap) [ 2.173492] usb 2-1.6: New ...
33
votes
10answers
5k views

Will ls always list the files that rm will remove?

Something I feel I ought to know for sure: if I ls <something>, will rm <something> remove exactly the same files that ls displayed? Are there any circumstances where rm could remove files ...
31
votes
2answers
9k views

Authentication Failure Switch to greeter

I'm experiencing a very annoying problem on Ubuntu 18.04. Whenever my laptop resumes after being suspended I'm completely unable to login and get the error; Authentication Failure Switch to greeter ...
30
votes
5answers
5k views

Inverted Horizontal scrolling ubuntu 18.04

I recently upgraded from 17.10 to 18.04 and the horizontal scrolling is inverted. Natural scrolling does not affect it in any way, suggestions on how to change it back? (swipe rigth to go left)
28
votes
3answers
16k views

How to scale the enormously sized desktop icons in GNOME 3.28?

I just upgraded to 18.04 from 16.04. I am using gnome-shell, gnome-ubuntu-desktop. After upgrading the icon size on desktop are very large. I am unable to find my option to decrease the size in ...
28
votes
8answers
31k views

No internet after upgrade from 16.04 to 18.04

After the upgrade I noticed that I don't have internet access. The wired network and the wifi settings looked good, but it didn't work. After the login the system always switched itself into airplane ...
28
votes
3answers
4k views

How to enable the Edit button in Shutter?

I am trying to enable the Edit button in Shutter. I installed the application from Ubuntu Software and are using Ubuntu 18.04. After taking a screenshot the Edit button is disabled. And when hovering ...
27
votes
1answer
9k views

What happened to the Nautilus feature “Create Link” in Ubuntu 16.10 and newer?

I have upgraded from Ubuntu 16.04 LTS to Ubuntu 18.04 LTS. I was surprised to see that the context menu entry "Make Link" (keyboard shortcut Ctrl+M) in Nautilus doesn't seem to exist anymore. It used ...
26
votes
3answers
8k views

No secondary button (right click) on touchpad

I'm experiencing a serious problem with the new Ubuntu 18.04: System Dell XPS 13 with a freshly installed Ubuntu 18.04 LTS. Problem description The touchpad provides only primary button (single ...
26
votes
3answers
8k views

Should I be offered the option to upgrade to 18.04.1?

I understand that the first point release of Ubuntu 18.04, namely 18.04.1 is now available and that my system should now offer it as an update. My current OS version is 16.04.5 LTS. In System ...
25
votes
8answers
13k views

App Indicators not working on Ubuntu 18.04

This is with a fresh installation of Ubuntu 18.04 using the default GNOME Desktop. The "tray icons" simply don't appear in the top panel. "Ubuntu appindicators" shell extension is active, but doesn't ...
25
votes
4answers
13k views

WiFi randomly disconnected on Ubuntu 18.04 LTS

I installed Ubuntu 18.04 LTS in this week and now I have a problem with wifi connection. The WiFi connection auto disconnected every 5 - 10 minutes but wifi signal is still fine. I did a search, found ...
25
votes
0answers
59k views

Specifically, how to upgrade from 18.04 to 18.10 (next development version) from the command-line? [duplicate]

I am ready to upgrade to the next version of Ubuntu. I know that Ubuntu 18.10 has not yet been released, but I like to live on the edge. It also makes me feel good to get massive upgrades of over ...
24
votes
8answers
16k views

Ubuntu 18.04 Unable to install Viber

I am trying to get Viber on my new Ubuntu 18.04 but I get these error ... sudo dpkg -i Downloads/viber.deb (Reading database ... 138136 files and directories currently installed.) Preparing to ...
24
votes
2answers
2k views

Cannot open calculator app from keyboard calculator button

If I press the calculator button in my keyboard, the gnome calculator app doesn't appear. I have double checked that the shortcut is ok in the settings app keyboard bindings config pane.
24
votes
10answers
30k views

How to open Nautilus (File Manager) preferences?

Please could you tell me where can I find the File Manager Preferences in Ubuntu ... (now for 16:04 LTS). The menu bar has disappeared from Nautilus, as also have the resize handles and the top-bar ...
24
votes
5answers
14k views

18.04, 16.04 Headphones detected, but not switched on automatically after startup

Edit: the issue seems to also affect 18.04. I have this issue since 15.10, but it started to really grind my gears after making an upgrade to 16.04. Let's say that I have headphones plugged in. I ...
23
votes
2answers
11k views

Skipping acquire of configured file 'contrib/binary-i386/Packages' as repository … doesn't support architecture 'i386'

I installed Ubuntu 18.04 and then while installing Virtualbox i get the 'i386' error message after I did: $ sudo apt-get update Get:1 http://nl.archive.ubuntu.com/ubuntu bionic InRelease [242 kB] Hit:...
23
votes
5answers
16k views

Why am I not getting the Ubuntu 18.04 upgrade?

I have been trying to upgrade to Ubuntu 18.04 but when I try do-release-upgrade -c I get this output Checking for a new Ubuntu release No new release found. I have checked the release date to be ...
23
votes
0answers
17k views

Ubuntu 18.04 stuck at purple screen after login [closed]

Sometimes, when logging in after rebooting or when switching between users, after typing the password and confirming, I get stuck at a purple screen. Sometimes I can escape it with ctrl+alt+F3 ...
22
votes
2answers
1k views

Filenames with space showing as 'file name' after upgrade to 18.04

After a upgrade to 18.04, from 16.04, all file names with spaces shows as 'file name'. Previously it was simply file name. File names without space shows up normally: $ ls bar 'foo bar' While it ...
22
votes
1answer
19k views

How to get Quick Filter back in Synaptic [Ubuntu 16.04 and later]

Ubuntu 16.04, Synaptic Package Manager does not have a search box for quick filter. I can use search button, but it opens dialog every time which is really annoying and not convenient. I want to have ...
22
votes
1answer
9k views

Boot hangs for 30 seconds at “Begin: Running /scripts/local-premount”

After upgrade from Ubuntu 17.10 to 18.04 the bootprocess takes 30s longer than before. it stops for 30 seconds at the step Begin: Running /scripts/local-premount Then it continues. At first it ...
22
votes
3answers
10k views

Nautilus-actions in 18.04

Nautilus-actions configuration tool, which was needed in order to have context menu actions in Nautilus doesn't seem available in the Software center in 18.04 LTS. (This seemed reported as a bug here ...
21
votes
4answers
22k views

How do I enable 'minimize on click' on Ubuntu dock in Ubuntu 17.10 and later?

I am talking about when you click on the icons in the dock This command (obviously) gsettings set org.compiz.unityshell:/org/compiz/profiles/unity/plugins/unityshell/ launcher-minimize-window true ...
21
votes
2answers
4k views

How to set a Compose Key in Ubuntu 18.04

Now that Unity is gone, the usual way of setting a Compose Key (via Keyboard Preferences > Layout) no longer works (because in Ubuntu 18.04, Devices > Keyboard has no Layout tab). How do we set a ...
21
votes
5answers
34k views

Ubuntu 18.04: switch back to /etc/network/interfaces

Starting sometime around Ubuntu 18.04, the Ubuntu devs stopped using the classic /etc/init.d/networking and /etc/network/interfaces method of configuring the network and switched to some thing called ...
21
votes
2answers
10k views

Ubuntu 18.04 Gnome hangs on VirtualBox with 3D acceleration enabled

Setup VirtualBox: 5.2.12 (just released) Host: Windows 10 with the latest update Guest: Ubuntu 18.04, 3D acceleration enabled, Gnome desktop manager Video card: Nvidia GEFORCE GTX980 Behavior ...
21
votes
13answers
24k views

Ubuntu 18.04 stuck at shutdown

I am having this weird problem in Ubuntu 18.04. My laptop gets stuck at the shutdown screen every time I use shutdown and I have to manually press the power button for 5 seconds to turn the machine ...
20
votes
11answers
13k views

Ubuntu 18.04 - Ethernet disconnected after suspend

Ethernet does not resume after suspend. sudo service network-manager restart does not work. Only restart solves problem.
20
votes
3answers
8k views

Ubuntu 18.04 fresh installation, Thunderbird inbox “invaded” by large icons (coloured emojis)

From my old HD (Ubuntu 16.04) I copied ~/.thunderbird and other programs to the new disk with Ubuntu 18.04 installed. All went good. I tried to install Opera. The installation was unsuccessful, a ...
20
votes
1answer
9k views

Gitkraken won't open gui

When I try to run gitkraken, the app does not open. This is a brand new installation of Ubuntu 18.04. When run in the terminal it puts out this: Gtk-Message: 23:23:20.033: Failed to load module "...
20
votes
3answers
9k views

Disable password request from from suspend - 18.04

How can I disable password request after suspend in v. 18.04? I have already turned off the screen lock but that didn't fix it. I am brand new using Ubuntu. There seems to be lots of info on how to ...
20
votes
0answers
1k views

Default headphone device when plugging in unknown audio device [closed]

My laptop has a single mini-jack that handles both headphones and microphone in one port. Every time I plug in my headphones I get the following asking me what kind of device I've plugged in. I'd ...
19
votes
6answers
24k views

How to turn off screen rotation in Ubuntu 18.04 LTS?

In Ubuntu 17.04 there was 'Rotation' menu in Display tab. But now in new version of Ubuntu, there's still a Display tab but no more rotation menu. Now I can't turn that off again since I upgraded to ...
19
votes
1answer
43k views

Freeze after login Ubuntu 18.04 [duplicate]

To start English is not my primary language so sorry for any mistakes. Before upgrade i was using gnome on Ubuntu 16.04 with lightdm and it worked fine. After upgrading to Ubuntu 18.04 I switched to ...
18
votes
6answers
29k views

Is it a bad idea to upgrade to 18.04 right now? [duplicate]

I started using Ubuntu about 2 years ago and at that time installed 16.04 LTS. A few days ago 18.04 LTS launched. Is it necessary to upgrade to this new version right away, since LTS distro's are ...
18
votes
1answer
12k views

Is TRIM enabled on my Ubuntu 18.04 installation?

I know that weekly TRIM is enabled by default from 14.10 onwards. Source: How to enable TRIM? But running sudo nano /etc/cron.weekly/fstrim returns an empty file. Also tail -n1 /etc/cron.weekly/fstrim ...
18
votes
5answers
5k views

Bluetooth doesn't work after resuming from sleep, Ubuntu 18.04 LTS

Bluetooth earphones work fine until sleep. After resuming from sleep however, they appear to connect for a brief moment before disconnecting. On blueman, the error given is Resource temporarily ...