Questions tagged [16.04]

Sixth LTS (Long Term Support) release of Ubuntu, code-named "Xenial Xerus". Released on 21st April, 2016. Will go End Of Life (EOL) April 2021. Only use this tag if your question is version-specific. Don't use this to file bugs!

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5
votes
1answer
641 views

New Ubuntu 16.04 Suspend Problem

For months, I have been using 16.04 with a Dell U2415 monitor and an AMD desktop. I was able to suspend and then resume. In the past few days, the monitor is dark when I resume and I have to power ...
5
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7answers
19k views

How to fix mouse cursor out of sync with VirtualBox Ubuntu Server 16.04.3 LTS VM?

I'm running Ubuntu Server 16.04.3 LTS VirtualBox VM with XFCE as desktop environment. Used VirtualBox is latest version 5.1.26 r117224. Frequently the mouse cursor is running out of sync and the only ...
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0answers
10 views

Brightness Control not working on Lenovo Thinkpad

I am using Lenovo Thinkpad 14-inch laptop with ubuntu 16.04. The brightness is neither changing using the brightness control buttons nor using the system settings. I have tried various solutions ...
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0answers
11 views

no HDMI audio output device in settings (Ubuntu 16.04)

My audio settings window (Ubuntu 16.04.6 LTS) does not show the HDMI audio output, thus I cannot select it. I only see the regular analogue stereo output, which works fine. However, I know that HDMI ...
0
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4answers
15k views

libcuda.so.1 not found despite installing CUDA?

When running tensorflow on ubuntu 16.04 libcuda.so.1 isn't being found. This file is part of the CUDA tools which I should have installed ; maybe just no the right place? I tried searching for the ...
3
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3answers
2k views

Packet Tracer 7.2 freezes while trying to save file

I have a file topology_1.pkt saved in default save location of packettracer 7.2. Now if I try to save another work with filename beginning with "t" (let's say topology_2.pkt), When I hit "t" from ...
0
votes
0answers
18 views

No space left on device with df /tmp

When I try to compile to code I get: /tmp/ccoG0kQe.s: No space left on device I have a problem with my device space. When I run this command df /tmp I get this output Filesystem 1K-blocks ...
0
votes
1answer
22 views

-bash: ./geth: cannot execute binary file: Exec format error

There are many questions out there with the same title, however, I have checked the binary version and OS version. Both are same and thus asking this question here. I have created a VM on Google cloud(...
6
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3answers
6k views

MySQL logrotate error

I'm new to Linux and have setup a VPS running Ubuntu 16.04 with postfix, dovecot and rouncube using mariadb for the database. It all seem to be working okay but I regularly receive the following email:...
6
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3answers
12k views

How to get current or set wanted regional format in the terminal?

I'm looking for single line terminal commands to: check my current regional format or set the regional format to English US. Currently to change this I have to go to Settings->Language Support->...
0
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0answers
29 views

Using sticky bits (16.04)

I'm using nmap on Ubuntu 16.04 (arm) where nmap is using raw sockets to perform certain tasks. I've encountered weird problem though. I can't seem to get it to work with root privileges nor with ...
4
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1answer
11k views

multiple owner of same folder

I have changed owner of /var/www/html folder to www-data,. Now I want to grunt ownership to ubuntu too. How can I do that. I don't know which group they belong to. I login to ssh by using ubuntu ...
1
vote
2answers
4k views

Virtualbox Ubuntu 16 guest, slow UI and animations

I'm running Ubuntu 16.04 in Virtualbox. Asides from some slowness it's working fine, except for the User interface being very slow. For example, window animations do not happen, windows just pop up, ...
0
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2answers
3k views

Not able to see items on Desktop

I'm using 16.04 and I can't see my items on my desktop. Doing gsettings set org.gnome.desktop.background show-desktop-icons true in the terminal does nothing and in Dconf show desktop icons is ...
-1
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1answer
2k views

trouble installing pygame on ubuntu 16.04 LTS

I had a hard time installing pygame on my ubuntu 16.04 LTS. I use python 3. these are the steps I took to install pygame: 1.first I installed pip: sudo python3 get-pip.py this is the output of ...
5
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2answers
1k views

Download only with snap

I've looked through the man pages and searched on AU, but I seem to be unable to find a way to download only a snap package. I want to download only for install on another computer. Is it possible, ...
1
vote
2answers
4k views

libcrypto.so.1.1 not found on Ubuntu 14.04

I don't have the library, libcrypto.so.1.1 on my Ubuntu machine. I checked on both, Ubuntu 14.04 and Ubuntu 16.04. My openSSL version details are: $ openssl version OpenSSL 1.0.1f 6 Jan 2014 I ...
23
votes
10answers
16k views

Changing the screen brightness of the external screen

I have installed Ubuntu 16.04 TS on my laptop and i have connected my laptop to an external monitor via HDMI cable. I can easily change the brightness of the screen of the laptop but that does not ...
11
votes
4answers
6k views

Software & Updates crashes and will not open

I am unable to open the Software & Updates configuration window in System Settings. The best I have been able to do to understand what is going on is the following output after opening System ...
10
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4answers
8k views

how to take screenshots using keyboard combo in Kubuntu 16.04.3?

On OSX, I can easily take a picture of desktop using keyboard combinations (Shift-Option-3 or 4). And the images are automatically created in my desktop. How do I simulate this on Kubuntu? Thanks
98
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6answers
237k views

How to completely uninstall docker

I followed the uninstall instructions here. Then I ran these commands: sudo apt-get purge docker-engine sudo apt-get autoremove --purge docker-engine rm -rf /var/lib/docker So after I did all this I ...
3
votes
3answers
6k views

What's the proper way to disconnect hot-swap SATA hard drive?

I'm using a SATA hot-swap bay and I have in BIOS this particular port configured specifically for "Hot-Swap". This bay has convenient "POWER ON/OFF" button, so no interruptions during plugging-in/out ...
3
votes
5answers
2k views

Ubuntu 16.04 does not find “Singapore” in Time & Date, and the time is wrong

I have a brand new Dell Precision Tower 5000 Series (5810) that just came with Ubuntu 14.04 pre-installed. Instead of upgrading to 16.04, I made a fresh installation (no dual boots). I was not able ...
2
votes
1answer
6k views

Malayalam Subtitle font rendering issue with VLC for 16.04

When I use a Malayalam (a very popular south Indian language) srt file with VLC (UTF-8 + Malayalam font in preferences) for Ubuntu 16.04, the subtitles are displayed. But not correctly. Certain joint ...
0
votes
0answers
25 views

How to resolve “Cannot create a temporary directory ?” (Pynacl)

I'm installing Pynacl on Ubuntu 16.04 where it reaches a point where it throws error I haven't found any info about in search engine: I get the error output after running: pip3 install --user ...
2
votes
1answer
5k views

NFS mounts not working in ubuntu 16.04?

Before I upgraded to ubuntu 16.04 from 14, I used to be able to mount and access folders on WDMyCloud drives. Now I get the following error: ls: Cannot open directory '/home/nas/Public': Operation ...
0
votes
0answers
30 views

Unmet dependencies for apt after upgrading from ubuntu 14.04 to 16.04 [duplicate]

After upgrading ubuntu I've had issues with installing programs using the apt command that will not repair themselves. I have tried running sudo apt-get -f install to try and fix the the unmet ...
0
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2answers
3k views

wifi network not showing in ubuntu 16.04

I am new to ubuntu, recently installed ubuntu 16.04 LTS on laptop. After install my wifi network is not showing up on the laptop. Need help. Thanks Arun
0
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1answer
50 views
2
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2answers
3k views

Ubuntu 16.04 - How to assign unallocated space in /home partition using Gparted

Recently I moved to Ubuntu from OSX. I've formatted my SSD Storage by the help of some tutorials on web. This is the allocation of space: Initially I set 8GB of storage as swap but then I buy new ...
3
votes
2answers
3k views

How to automatically switch sound output to Bluetooth headphones?

How do you make Ubuntu 16 automatically switch sound output to Bluetooth headphones when they connect? Currently, my Bluetooth and sound work perfectly, except whenever I want to use my headphones, I ...
2
votes
0answers
32 views

Re-launch Chrome from a guest account

Chrome crashed while I had a few tabs open, on a guest account with Ubuntu 16.04. I want to re-launch Chrome before signing out of this guest account, so that I can get my tabs back, before signing ...
2
votes
1answer
10k views

How to set up OneDrive on Ubuntu 16.04LTS?

I tried the guides but a window never popped up prompting me to sign in, so I continued with the command 'onedrive-pref'. That did nothing, so now I have a OneDrive folder and a .onedrive folder. I ...
0
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0answers
32 views

CPU load average spikes every hour with CPU 55% and memory 82% only

Our Digital Ocean droplet's CPU load average spikes every 1-1.5 hour. Here is the the performance graph for the past 24 hours: Here are some MySQL error logs for 1.5 hours (one cycle) as well as ...
0
votes
0answers
17 views

Upgrading Ubuntu Mate with Berryboot (Raspberry Pi 3)

I have installed Ubuntu Mate 16.04 with Berryboot on a Raspberry Pi. When I try to update the kernel with sudo apt-get update and sudo apt-get upgrade, it can't proceed with some warning root device ...
1
vote
1answer
4k views

Kworker consumes ~80% of 1 CPU core, how to get rid of this once and for all?

Kworker takes about 80% of CPU1 each time I boot the system. I tried to do as explained in this answer. Here's the output of grep . -r /sys/firmware/acpi/interrupts: root@fmcomp:~# grep . -r /sys/...
0
votes
1answer
572 views

Ethernet (LAN) not working, 16.04, “RX TX dropped overruns collisions” keep increasing

The problem is on a vaio notebook. ifconfig sample enp4s0 Link encap:Ethernet HWaddr 12:23:34:56:23:52 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:...
7
votes
3answers
3k views

Ubuntu 16.04/17.04/17.10 & CENTOS 6,7: screen flickering and random shutdowns (Lenovo Thinkpad T410)

I ask the same question a couple of weeks ago but the question was closed because it was related to Ubuntu 17.10 which is under development. However, I have the same (and worse) issues for the LTS 16....
13
votes
2answers
42k views

How to remove npm and reinstall npm completely in 18.04?

I was using ubuntu16.04 upgraded to ubuntu18.04. followed some tutorial to remove npm, but now stuck. I have: ~$ npm list -g bash: /usr/bin/npm: No such file or directory and: sudo apt-get ...
0
votes
0answers
23 views

Don't find site-packages after PC formatting

I don't find the path : '/usr/local/lib/python2.7/site-packages' and '/usr/local/lib/python3.5/site-packages' Does it normal or not? If not, could you tell me the reason? And how to fix it? Please ...
1
vote
1answer
38 views

Messed up Python3.6 on Ubuntu 16.04

I installed anaconda and run 'sudo apt-get update && sudo apt-get dist-upgrade' on an Ubuntu 16.04 system. I upgraded pip inside an Anaconda environment and also used the 'sudo apt-get ...
0
votes
1answer
58 views

SquirrelMail - Error: Connection dropped by IMAP server

I am trying to use SquirrelMail on Ubuntu 16.04. When I go to localhost/squirrelmail/src/login.php and login, I encounter the error message: ERROR: Connection dropped by IMAP server. I tried the ...
2
votes
1answer
40 views

Can't update Ubuntu server 16.04 to 18.04 due to missing phpMyAdmin PPA

I'm trying to install the latest updates for 16.04 so I can upgrade to 18.04. I'm getting errors with the phpMyAdmin PPA, which I understand is due to the fact that the original package maintainer (...
2
votes
2answers
4k views

Unable to find apache2 directory inside /etc in Ubuntu 16.04

I am trying to install Apache in Ubuntu 16.04. I followed the steps from How To Install Linux, Apache, MySQL, PHP (LAMP) stack on Ubuntu 16.04. I ran the following commands: sudo apt-get update ...
12
votes
3answers
7k views

What program to use when you want to create a persistent storage live usb IN Ubuntu?

What program to use inside ubuntu to create ubuntu persistent storage usb? Edit: It is a PERSISTENT STORAGE. How do I make a bootable Ubuntu USB? is not the answer, actually I tried Startup disk ...
2
votes
1answer
2k views

Bluetooth not discovering any devices - Dell XPS 13 (16.04)

I have looked at other solutions and threads for this problem but none of them have worked for me. I am using a Dell XPS 13 to connect my new Jaybird X3 earphones. So far, the laptop has been unable ...
0
votes
0answers
13 views

Show Raw Contents of update-alternatives

I'm wondering if there's a way to show the raw contents of sudo update-alternatives --config <resource>? I've been doing quite a lot of troubleshooting getting some installs correct and I cannot ...
0
votes
0answers
34 views

Can't block specific IP address with iptables, Ubuntu 16.04

I'm trying to troubleshoot Fail2ban recognizing our http-get-dos trigger, but not actually banning the offending host. I can see it adding entries to iptables rules, but they don't have any affect. So ...
4
votes
1answer
4k views

How to find out which interface name to use?

I'm setting up an Ubuntu 16 LTS on Proxmox, /etc/network/inetrface file shows only default: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback I'm adding this: allow-...
0
votes
0answers
24 views

PLZ help me for transcode with ffmpeg and Gpu to add Watermark

I work for ffmpeg and GPU. This line works: ffmpeg -y -progress - -hwaccel cuvid -c:v h264_cuvid -deint 2 -drop_second_field 1 -resize 1280x720 -i udp://@230.3.4.131:11230 -c:v h264_nvenc -preset llhp ...

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