Latest Ubuntu related questions

Score: 0
Davi Barreira avatar
Black Screen after installing SageMath
in flag

This problem happened in my friend's computer, and I'm trying to help him out. He was using Jupyter for coding python, and installed SageMath using sudo apt-get install sagemath. He said that after that, the Jupyter kernel stopped working, so he decided to reboot his computer. The problem is, once he did this, he got a black screen, as shown below: enter image description here

He said he can actually navigate the Ubuntu system, bu ...

Score: 0
This application failed to start because no Qt platform plugin could be initialized
za flag

I wanted to install Systemback on my ubuntu 20.04 and found this page. When I ran systemback, I get this error message.

ckim@ckim-ubuntu:~$ sudo systemback&
[1] 220231
ckim@ckim-ubuntu:~$ No protocol specified
No protocol specified
qt.qpa.xcb: could not connect to display :2
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start bec ...
Score: 0
Basil Battikhi avatar
Trying to install rtx 3070 driver
gb flag

I faced many issues with my laptop and spent around 3 days,

I have alienware m15 R4 with rtx 3070 laptop edition.

The first problem i was unable to boot so that i added nomodeset in grub configuration.

Now i'm able to login. and tried to install rtx 3070 driver from this link or even from the software updater but this causes to nothing open at normal boot neither recovery mode and it keeps a black bla ...

Score: 0
Nick avatar
L2tp NM and ipsec configuration for ciphers
cn flag

Issue that I'm having is when I try to bring up vpn connection defined in ipsec.conf I get always get

parsed INFORMATIONAL_V1 request 2522689065 [ HASH N(NO_PROP) ] received NO_PROPOSAL_CHOSEN error notify

I tried various combinations for ike and esp but always getting the same error.

When I go thru NM, I didn't defined Phase 1 and Phase 2 everything is working, here is complete log:

Jun 17 16:04:41  Net ...
Score: 0
Wazzak avatar
.sh files not executing after upgrade to 21.04
us flag

.sh files not executing after upgrade to 21.04. I can run them from within Terminal ok, but not as a self executing file. At this point it opens Notepad++. I have looked in the file properties/open with but no Terminal listed.

Score: 1
Ubuntu 20.04 - Install a specific version of openjdk "1.8.0_201"
ph flag
Kim

I have openjdk version "1.8.0_292" installed on my Ubuntu 20.04.

I need to install an exact version of openjdk - 1.8.0_201

How do I do that?

The reason being that an old application I am trying to run is giving me an exception:

java.lang.IllegalArgumentException: Invalid version number: Version number may be negative or greater than 255 at com.ibm.icu.util.VersionInfo.getInstance(VersionInfo.java:15 ...

Score: 0
onemorequestion avatar
apt-get holds back upgrading from 20.04.1 to 20.04.2
in flag

On a Ubuntu server

sudo apt-get upgrade holds some packages (7) back from upgrading, so the system remains a 20.04.1.

With sudo apt upgrade all packages are installed and the system is now a 20.04.2.

Could you explain this behaior to me?

One problem is that with 20.04.2 I loose the abillity to scroll-up/down in the tty, which was different on the older kernel.

So the second question is how to get tty s ...

Score: -1
GMSL1706 avatar
Error on Ubuntu 20.04 LTS && the system is unable to locate package pi-bluetooth
in flag

I am new in Ubuntu and I would like to install pi-bluetooth for my projects but I can't. I looked at several forums but without having the precise answer to my specific request. I use Ubuntu 20.04.2 LTS on Windows Subsystem for Linux (WSL). When I use the command sudo apt update && sudo apt upgrade, I get :

Hit:1 http://security.ubuntu.com/ubuntu focal-security InRelease
Hit:2 http://archive.ubunt ...
Score: 1
Can we just use symbolic link instead of 'mount --bind'?
za flag

Recently I came to know about the mount --bind command but there is something that I can't understand clearly. Suppose I have a disk partition and I mounted it to a mount point /bkup using this command.

sudo mount /dev/sdd1 /bkup

If I want to make that /home/bkup directory appear as ~/bkup, I could do

sudo mount --bind /bkup ~/bkup

But how is it different from

ln -s /bkup ~/bkup

in effect? Why  ...

Score: 0
Nikt się niedowie avatar
How to make applications open on specific workspaces on startup?
gl flag

I want to open Terminal and System Monitor on the 2nd workspace on startup.

What terminal command do i need run?

Score: 1
janjon avatar
Scripts missing in Nautilus context menu after update from Ubuntu 18.04 to 20.04
cn flag

After updating Ubuntu from Ubuntu 18.04 to 20.04, the scripts entry in Nautilus context (right-click) menu is missing.

I do have a ~/.local/share/nautilus/scripts/ directory containing scripts. The script where working before the update.

  • Any idea?
Score: 0
zilexa avatar
on reboot only: Failed to start detect the available GPUs and deal with any system changes
ma flag

Minisforum u820 "nuc-like" minipc, USB-C powered (using the provided adapter), 512GB Kingston SSD and 2x8GB RAM. No dedicated GPU. Intel i5-8259 with built in 655 graphics.

After installing Ubuntu Budgie 21.04 (with Secure Boot disabled in bios), I have an issue when I reboot the device: it doesn't boot any further and shows 2 errors:

  1. Failed to start detect the available GPUs and deal with any system ch ...
Score: 0
IamKAKE avatar
Problem with installing plugin in Audacity
vu flag

I edit my songs in Audacity on my ubuntu 18.04 computer. Recently i downloaded GSNAP plugin(file extension : .so) and followed this article to install it. I should log in with root to edit the plug-ins folder. I entered sudo -i for logging in as root but I wasn't able to place the GVST plugin file into the PLUG-INS folder.

I also tried to do it completely in COMMAND LINE, but this was the resulterror

 ...
Score: 1
denverCoder9 avatar
20.04 doesn't support Intel Core i5 10400?
kh flag

I've just purchased a brand new computer and tried to install Ubuntu 20.04, but it only boots in safe graphics mode, and after installation, I get a black screen. When I go for 21.04, everything works fine, but I'd prefer the LTS version for obvious reasons.

Hardware details: Processor: Intel Core i5 10400 with onboard graphics, motherboard: Gigabyte Z590 GAMING X

Am I doing something wrong or is th ...

Score: 1
s0H57 avatar
Bluetooth headset connect does the inverse
in flag

i have a Sony WH1000-XM2 bluetooth headset. In the past i only had the issue that a reconnect was not possible, so each time i had to do pairing again and then it worked. Now today it suddenly stopped working. Then after trying some fixes bluetooth wouldn't turn on again. Now i followed several other guidelines: https://unix.stackexchange.com/questions/608116/bluetooth-wont-turn-on-on-ubuntu-20-04

Score: 1
Stefan Verweij avatar
Ubuntu 20.04 LTS dual boot freezes before login, cannot enter TTY (likely a nvidia drivers problem)
cn flag

I've been breaking my head on this one for almost two weeks now and I really don't know how to solve this, I've followed dozens of askubuntu questions, bot none seems to help solve my problem.

Since two weeks my Ubuntu 20.04 LTS won't boot to login anymore after it autoinstalled some updates. It is most likely driver related, because booting to an older kernel with the default graphics driver wor ...

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