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1500 questions
105
votes
10 answers
Ubuntu 20.04 Network Performance Extremely Slow
I just upgraded from Ubuntu 18.04 to 20.04 on one of the Dell XPS 13 machines, and the network performance is abhorrent. Internet speed is very fast from a google speed test (>300Mb/s for both upload and download).
However, whenever I try to…
kwsp
- 2,079
105
votes
7 answers
How to change/disable password complexity test when changing password?
I know that it is a "bad" idea, I know that it is not secure, I know. I searched the net for an answer and all I saw was whining that it's not good. But I like using Linux because it lets me make the system I want and like to use. The end of…
wobmene
- 1,981
105
votes
8 answers
The following signatures were invalid: EXPKEYSIG 1397BC53640DB551
This is Issue 952287: [User Feedback - Stable] Reports of Chrome for Linux failing to install/update due to expired GPG signing key
Today, running apt in all my machines gives this error with the Google PPA (for google-chrome):
me@mymachine:~$ sudo…
Leo
- 3,654
- 2
- 20
- 36
105
votes
2 answers
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
On Ubuntu 18.04 I am getting this when I want to install the recommended Nvidia driver.
sudo apt install nvidia-340
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were…
Nitescu Lucian
- 1,382
- 3
- 11
- 24
104
votes
4 answers
How do you see what packages are available for update
FreeBSD user joining your ranks. I've been asked to look after an Ubuntu Server running 10.04 LTS.
I see from /usr/lib/update-notifier/update-motd-updates-available that there are a number of updates on the server however I do not see a way to…
Jan Geep
- 1,997
104
votes
11 answers
Converting mp4 to mp3
I have a video I need to convert to mp3 (from the command line - not GUI): video.mp4
I tried:
ffmpeg -i -b 192 video.mp4 video.mp3
with no success. I get the following error:
WARNING: library configuration mismatch
Seems stream 0 codec frame rate…
aki
- 2,114
104
votes
10 answers
MongoDB loads but breaks, returning status=14
So im trying to setup Mongodb on Ubuntu 16.04 but im running into trouble.
when running :
sudo systemctl status mongodb
I get the following:
mongodb.service - High-performance, schema-free document-oriented database
Loaded: loaded…
user2915962
- 1,141
104
votes
10 answers
How can I boot with an older kernel version?
The latest kernel is causing problems with my sound, which worked fine with an older version. As I have only Ubuntu installed, Grub is not getting displayed while booting. How can I manually choose my kernel version while booting?
Shahe Tajiryan
- 2,770
104
votes
11 answers
"physical block size is 2048 bytes, but Linux says it is 512" when formatting USB - How to create a bootable USB without this error
I was using:
dd if=/path/to/my/ubuntuiso/ubuntu.iso of=/dev/sdb1 bs=4M && sync
In order to create bootable Ubuntu USB drives on older Ubuntu versions. It was working perfectly. Sometimes I used the Startup Disk Creator program, which worked…
Severus Tux
- 9,866
104
votes
11 answers
Steam not opening in Ubuntu 16.04 LTS
I have never used Ubuntu or any other Linux OS before last Friday. For all I know, I might have installed Ubuntu wrong and be missing a component. I would prefer if you use simplest terminology possible, but I'm OK with doing a bit of googling if…
Never2MuchPizza
- 1,141
104
votes
5 answers
How to get a list of installed packages held back from upgrade?
Recently, I needed to get a list of packages that were installed on my Ubuntu system which were also put on hold for upgrade.
The 'hold' status for a package means that when the operating system is upgraded, the installer will not upgrade these…
pmagunia
- 1,522
104
votes
9 answers
Problem with installing Steam on Ubuntu 15.04+
Actually I have installed the new Ubuntu 15.04 64bit, and when I'm trying to install Steam on it, there is a problem.
In fact I have downloaded the deb package from steam website, installed it and when I start it nothing happens.
I tried to start it…
saber hammami
- 1,049
104
votes
19 answers
Is a clean install better than upgrading?
Is it better to install Ubuntu completely new or is the upgrade process just as good? In other words, will my computer run just as problem-free and efficiently when I upgrade as opposed to a fresh install?
Doughy
- 2,034
104
votes
11 answers
Gimp: Export every layer as a separate PNG image
I have come to a situation where I have an image in Gimp with multiple layers. Now, I want to export every single layer as an individual image (PNG format preferably) automatically to a folder somewhere.
Is this possible?
The long method: Hide all…
Parto
- 15,325
- 24
- 86
- 117
104
votes
8 answers
Nginx failing to reload - how to track down why?
Hi I've had my Nginx server running great on Ubuntu server 12.04 for a while.
I've been gradually bolting on various bits, and got as far as optimising load times on my wordpress page.
After making a few changes to my hosts file I decided to:
sudo…
Huw
- 1,603
- 3
- 17
- 23