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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.

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403 Forbidden and “The repository 'http://security.ubuntu.com/ubuntu bionic-security InRelease' is no longer signed” errors on Ubuntu 18.04

I have installed Ubuntu but I am unable to update and upgrade the system due to an error about a repository not being accessible or not being secure: E: Failed to fetch http://security.ubuntu.com/...
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1answer
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What is the proper way to install mysql in Ubuntu 18.04?

I wanted to install mysql on my laptop to use in projects where I need a database. I'm confused, because I've seen some questions on this site: How to install mysql on Ubuntu 16.04 But I do not know ...
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Any way to install python 3.4 on Ubuntu 18.04? [duplicate]

I have some project that needs python 3.4 but since I am on Ubuntu 18.04 I have python 3.6 installed. If I try to setup the project on 3.6 I get compatibility issues. Please guide how do I install ...
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18.04. Detecting wifi networks, but not mine

From the visible network list I can see a lot of networks, but not my network at home. After a lot of searching I have tried the following: Update and upgrade Restarted router and laptop restart ...
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Cannot change any settings of my profile via tweaks or setting Ubuntu 18.04

Cannot change settings for a certain user Ubuntu 18.04. example: via tweaks, want to change position of title bar buttons, not working launcher, can not add/remove favorites etc. Something on the ...
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1answer
71 views
+50

One side of headset / headphone does not work in Ubuntu 18.04.1

When I connect my headset to my laptop running on Ubuntu 18.04.1, sound can only be heard from the right side. I have tried testing the speaker in the sound settings, which shows the same result. The ...
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1answer
38 views

How to avoid the reinstallation of VirtualBox Guest Additions on every kernel upgrade of guest Ubuntu to have clipboard and draganddrop?

I'm running Ubuntu 16.04 LTS host with VirtualBox 5.1.38 from Oracle's repository. I have Ubuntu 18.04.1 LTS guest on this host. Inside the guest I have installed all needed packages to get Guest ...
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ImageMagick (display Q16) as selection option to alter image gone in 18.04

In Ubuntu 16.04 I was able to select ImageMagick (display Q16) as option when I right click on an image to manipulate the image... in a fresh 18.04 its gone. How can I get it back as select option and ...
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1answer
19 views

18.04 - Remove icons from top bar in flashback metacity

I use flashback metacity in a 18.04. By accident I moved some icons to the top bar ... how can I remove them? If I right click I can only choose between 'Launch' and 'Properties' ... no 'Remove from ...
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1answer
45 views

How To Hide Mounted Drives From Ubuntu 18.04 Desktop?

After Strg+mouse-scoll in nautilus my icons for mounted hard drives have increased to the maximum (parallel to thumbnails view size - which looks like a bug to me , the big size remain after restart). ...
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Unable to install 18.04 on new hardware

I'm running a 970 Evo on a relatively new motherboard (z370P D3) Although it shouldn't cause any issues I'm now officially suspecting something is up. I've created an installer using Rufus and the ...
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Ubuntu 18.04 Broadcomm BCM43142 Wi-Fi hotspot not working

I have installed Ubuntu 18.04 on my HP notebook and installed Wi-Fi drivers successfully but if I try to create a Wi-Fi hotspot, it shows that the hotspot is on but I cannot find the given hotspot on ...
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24 views

6.966283] ata1.00: failed to set xfermode (err_mask=0x40)

6.966283] ata1.00: failed to set xfermode (err_mask=0x40) I'm getting this message and a slow boot on ubuntu 18.04 with kernel 4.20. however this does not occur when i use kernel 4.15. any kernel ...
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2answers
53 views

Give list of packages installed with apt a name

How can I give a list of packages installed via apt a name, eg. one that I could find with dpkg-query -W my-packages or something similar? For example, call the group build-essential checkinstall ...
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Ubuntu 18.04 Change default behaviour of Super+Tab keyboard shortcut

I have disabled the keyboard shortcut for switching application. However, when I create a custom keyboard shortcut with Super+Tab, it does not execute with that combination. Other key combinations ...
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10 views

Error in SSL certificate LEMP Statck

I have a Linode server with LEMP stack and Ubuntu 18.04 LTS I Installed the LEMP Stack following this tutorial: https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-...
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How can I be notified of calls and SMS messages from my iphone?

I would like to be notified if my iphone is ringing or if I receive an SMS on Ubuntu. I don't mind if I can't answer the call from ubuntu. Using Iphone 6S and Ubuntu 18.04
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No sound in Ubuntu 18.04 LTS on Asus X542UA

I have bought a new laptop and I tried to install Ubuntu 18.04 LTS on it. The sound doesn't work. I tried updating, upgrading, I tried installing different drivers .. I tried installing windows 10 and ...
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30 views

Ubuntu 18.04 with GNOME - windows switcher not cycling

I have the strangest thing happening to me. I configured the alt+tab shortcut to switch between windows instead of applications. And everything worked fine. Until a few days ago, now when I press the ...
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PyGObject Virtual Environment Installation Ubuntu 18.04

I've been successful installing the PyGObject environment into the global libraries and have tested it with the sample Hello World program. However, I want to install it into a virtual environment. ...
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22 views

Ubuntu 18 Virtual Box Glitchy Load Up

I am having an issue with U:18 and virtual box every time I try to start it up it will show the loading screen then stop and start flashing and won't do anything after that. We build it through ...
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left mouse button on wireless mini keyboard opens gnome-control-center?

please help me how to go about and start debugging this weird phenomenon: I bought a dodgy chinese wireless mini keyboard called iPazzPort. It works, but every time I click the left mouse button on ...
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Eye of Gnome - color washed out

I'm having problems with Eye of Gnome, the image viewer. I'm using Ubuntu 18.04. Unfortunately, the colors seems washed out, the images seem to lack contrast. This problem only happens with Eye of ...
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How to remove katoolin script completely from Ubuntu 18.04? [duplicate]

I am a relatively new Linux user and was looking forward to learn hacking. So instead of directly installing Kali,I installed Ubuntu and installed katoolin script.But now my software updater isn't ...
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52 views

Login / lock screen on 18.04 looks like 16.04 after installing a new theme

I've installed a theme from GNOME themes. After the installation, my login screen changed to that of Ubuntu 16.04, while I'm using 18.04. How can I fix it?
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Ubuntu LTSP 18.04 lock screen not accepting password

I have an Ubuntu Server 18.04.1 with LTSP installed and currently being used with 4 fat clients and 6 users. Each user has the same problem, they cannot log back in after they lock their session. ...
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0answers
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Ubuntu 18.04 not detecting second monitor connected via VGA

The issue started after I used my ubuntu hard-drive on other pc, now secondary monitor plugged on VGA stopped to work. I Tried most of the solutions present on Ask Ubuntu, but nothing is fine for my ...
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0answers
26 views

Running Java/Minecraft with the Nvidia GPU

I have ripped the web up trying to figure this out. Bumblebee hasn't helped. I want to run Minecraft on the Nvidia GPU in my laptop. As far as I can tell, Ubuntu default runs it with Intel because ...
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39 views

Unable to access Windows 10 files from Ubuntu 18.04

Dual booting Ubuntu 18.04 with Windows 10. I realised Windows files are not visible by default, unlike in the past. Mounting the filesystem directly doesn't work. Steps I have tried include the ...
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21 views

multiple 'open with' applications in right-click context menu with nautilus/filemanager-actions?

I would really like to get the old Gnome behavior restored, where you could right-click, hover over Open With... and then a submenu with a list of applications would open - something like this: Have ...
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AnyDesk stuck on the client computer Ubuntu 18.04

I am running the newest version of Anydesk 4.1 for Ubuntu 18.04 on both client and host sides. Very often, my Anydesk stucks (freeze) on the client computer. For example, when I type something outside ...
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Compiz to override Java window placement

We use an open source point of sale system on our Ubuntu install called unicenta. Its built on java and does everything we want, but has one annoying quirk - java windows opened in the app appear on ...
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1answer
39 views

Black screen at the startup [duplicate]

Ubuntu gives black screen at startup. I have no idea why. Maybe it's the software update I did yesterday? Why is it happening?
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25 views

Grub rescue error: Installed Ubuntu in Legacy alongside Windows10 in UEFI

Sorry for asking an already asked question, but I couldn't find anything that solved my problem. I did an extensive research on the internet (many users had similar problems) still I'm not able to fix ...
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24 views

Cannot zoom in live view in Darktable?

Using darktable 2.6.0 from PPA on Ubuntu 18.04. I just connected a Canon S3 IS to it, it can be found and connected to from darktable. I get a Live View in darktable, however, the camera only supports ...
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Squid proxy won't cache anything (tcp_tunnel)

Squid on 18.04 server won't cache anything and the majority is tcp_tunnel/200 when I tail the access log and the cache log shows that nothing is cached. How can I get it to cache websites? Squid ...
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2answers
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Ubuntu 18.04 - Safely remove/change a specific partition and allocate free space to root

I have a dual boot setup. On the original disk I have Windows installed (on a uefi setup) ... and on a second drive ubuntu. It all works fine. Yet, when I installed ubuntu on the second drive ... I ...
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Why MSI GS63 8RD-004TH cannot install ubuntu

My GS63 8RD-004TH always freeze after finished installation and I have to hard shutdown. I try ubuntu 16.04, 18.04 even debian but the result is still the same. What should I do or where should I ...
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OpenBTS-UMTS on Ubuntu 18.04, make fails: recipe for target 'CLI.lo' failed

I'm trying to install OpenBTS-UMTS on Ubuntu 18.04. I ran successfully ./autogen.sh and ./configure then make fails with the following error Makefile:501: recipe for target 'CLI.lo' failed make[...
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0answers
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Is there a way to prevent multipath to switch to a new higher priority path (immediately)?

I have two available data path to a SAS drive where one path has a higher priority than the other. 35000cca25288b704 dm-108 HGST,HUH721008AL5200 size=7.3T features='0' hwhandler='0' wp=rw |-+- policy=...
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Ubuntu 18.04 on a Lenovo T560 - fan spins like crazy after wake-up from sleep mode

If we use the machine with shutdown + cold start: no issues. But, if we use the sleep function (closing the lid, sleep) and opening the lid later, it will (but randomly, ex.: 2 days later or in just ...
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1answer
42 views

Install Deamon (Zookeeper) but don't automatically start it

I've installed zookeeper and zookeeperd on 18.04 directly from the APT sources. That works fine, but it gets started automatically. How can I prevent this? Stopping the daemon afterward is possible, ...
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Startup Application and @reboot cron not firing - what to look for?

I have an issue with my dual monitor setup: one is touchscreen and the other is not - the touch input correlates across both displays instead of just one. I can resolve the issue by mapping the input ...
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2answers
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GDM running but no display

In a routine reboot event this morning, my Ubuntu machine can no longer show display and it was totally random (did not do anything). Version 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC ...
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How to change the default clock (city) in gnome-clocks?

I just installed gnome-clocks and by default it took on a different city than my city. I can add my city but can't delete the default city or make my city the default. There is no guidance either in ...
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Program uninstalled but still gives error: ContextualVersionConflict

I use ubuntu 18.04. I recently installed certbot to create an SSH and it worked. Then I decide to install python-pip and certbot-dns-cloudflare using this command sudo apt install python-pip sudo pip ...
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1answer
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About Graphics Driver Ubuntu 18.04.1 LTS

My device is Asus X550LN Intel® Core™ i3-4010U CPU @ 1.70GHz × 4 GeForce 840M/PCIe/SSE2 Now i have installed nVidia Geforce 840m driver. should i need to install Intel graphics driver also ? If ...
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Wifi problem with Ubuntu 18.04.1 LTS. Not a duplicate ques. because no solution was woking for me [on hold]

Installed Ubuntu 18.04.1 LTS as dual boot with WIndows 10. Unable to find WiFi adapter is the message I get. Tried almost every solution (git clone, update, upgrade, off secure boot, on legacy ...
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1answer
55 views

How to install Vim 7 beneath Vim 8?

I want to keep Vim 8 but because I have several configuration files only working with version 7 I want to install Vim 7 in addition to Vim 8. How do I find the path of the installed Vim 8? Where and ...
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How to setup lvm to cache /root on 18.04?

I have two drives and can use lvmcache to cache the hard drive with the SSD with 16.04. However, when I follow the same process with 18.04, I can create the lvmcache but when I reboot, I get the ...