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14 views

USB-connected Laser printer (has linux drivers) for printing from Linux and remote systems (Windows and Mobile)?

Bought a USB-connected monochrome laser printer, after confirming that it has Linux drivers. I understand that once I install the driver and print server (CUPS) on my Ubuntu 20.04 system, this system ...
0
votes
1answer
21 views

my win10 crashed so i want to install ubuntu instead and running into several problems

my win10 crashed (unmountable boot volume error), so I brutally shut it down, and tried to install ubuntu instead of my win 10 (I do not any back up, just erase and install ubuntu). I downloaded ...
0
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0answers
25 views

How do I change my default root-user to non-root user?

When opening my terminal (Ubuntu16.04) I am logged in as root. Everytime I have to type this command 'su - ' to log in as non-root user. So I already made a non-root user but how do I set this non-...
0
votes
1answer
17 views

No HDMI sound (20.04) until “pulseaudio -k”

Ubuntu 20.04 here (kernel 5.4.0-48) As stated in the title, after boot I have no sound via HDMI: actually the HDMI interface seems not present at all . see pic here I already perused answers to ...
0
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0answers
13 views

“Installer crashed” while installing ubuntu 20.04 on a Dell XP laptop, but it seems to be working?

I tried installing Ubuntu on my new Dell XPS laptop today, and somewhere near the end of the installation procedure, I got the message saying the installer crashed and that I would be able to send a ...
0
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0answers
16 views

Unknown process is running at 100% of CPU on two seperate computers

I have two separate computer running Ubuntu 18.04 Both computer have a random unknown process that will take up 100% of two CPU cores. However, it will be gone after I reboot the PC. How do i remove ...
0
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0answers
12 views

How to get rid of black light on second monitor on ubuntu mate 20.04?

I am trying to get rid of the black light on my second monitor using ubuntu mate 20.04. My station has and AMD Ryzen 7 cpu and 2 gpus: Integrated - AMD Radeon, Dedicated - Nvidia GTX 1650 Mobile. I've ...
0
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0answers
10 views

sound and trackpad not working on macbookpro(13 inch 2017 with touch bar ) with ubuntu 20.04.1

the keyboard works fine on my macbook but the trackpad and the internal speakers (or headphones are working ) i tried 'alsamixer' to see if anything is muted and 'pavucontrol' also tried everything ...
0
votes
1answer
29 views

Doesnt appear upgrade prompt on 18.04

Hello i have ubuntu desktop 18.04.5 with latest updates.. But dont know why the prompt i should read doesnt appear : I only have the line The software on this computer is up-to date.And thats it... I ...
1
vote
0answers
17 views

How to use xcb library in Python

When I run import xcb I get error ModuleNotFoundError: No module named 'xcb' I installed packages python3-xcbgen and python3-xcffib, and tried to use python3, but it does not seem to be enough. (I ...
0
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0answers
17 views

Which is the “correct” version of `CUDA` seen by `pytorch`

Which is the "correct" CUDA Version? nvidia-smi says I have cuda version 10.1 conda list tells me cudatoolkit version is 10.2.89 print(torch.cuda.current_device()), I get 10.0.10? (it ...
0
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0answers
25 views

Problem installing WiFi drivers

Alright I'm not expecting much help but I just made a new pc with Linux running and I'm trying to install the drivers for my external internet adapter and I've got the drivers on a cd but there's no ...
0
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0answers
10 views

KDE Plasma title bar theme wrong size

I'm using Ubuntu 20.04 with manually installed KDE Plasma desktop environment. I want to customize it with a theme, but when applied, the windows titlebar looks like this screenshot of titlebar I ...
0
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0answers
18 views

ubuntu 20.04.1 wifi problem

Well i've been working on ubuntu 20.4 for 3 days and suddenly the internet started to go slow and i didnt why i've tried everything i've found but nothing's worked :C any idea? wlp2s0 IEEE 802.11 ...
1
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0answers
13 views

Update NVIDIA driver (two cards) on Ubuntu 20.04

Is there a way of specifying the device when updating a graphical card driver? In my case I have two graphical cards and driver updates get applied to just one of them Titan Xp. The one that I want to ...
0
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0answers
19 views

Fan speed Nvidia proprietary drivers vs Nouveau

I have been testing over a couple of days whether to use the Nvidia proprietary drivers or the Nouveau driver on Ubuntu 18.04 LTS. I notice when I use the Nvidia proprietary drivers the fan kicks in ...
0
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0answers
24 views

Image editing program like RealWorld paint but for Linux?

Does anyone know of an image editing program like RealWorld paint but for Linux? http://www.rw-designer.com/image-editor
1
vote
0answers
16 views

Ubuntu 20.04 LTS not able to open settings even after reinstalling gnome-control-center

I have installed Ubuntu 20.04LTS recently and i am trying to change the settings for that i am not able to find it. So i have installed "gnome-control-center" but still i am not able to open ...
0
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0answers
15 views

Ubuntu 18.04 renameX udev don't work

I got dmesg as follows: root@NODE-073:~# dmesg | grep eth [ 9.844932] igb 0000:81:00.0: added PHC on eth0 [ 9.844935] igb 0000:81:00.0: eth0: (PCIe:5.0Gb/s:Width x4) ac:1f:6b:99:12:b6 [ 9....
1
vote
0answers
15 views

ImportError: libIex.so.25 : cannot open shared object file- with OpenEXR

I want to install and import the OpenEXR package in python to read some .exr files. I installed the package using the following commands: sudo apt-get install libopenexr-dev sudo apt-get install ...
3
votes
2answers
95 views

Is installing another desktop environment on a stock Ubuntu 20.04 install consider reasonably safe/ok. Low risk for serious issues

Currently running an up to date stock Ubuntu 20.04 desktop with Gnome. In the past I've heard it can cause some problems/issues if one installs multiple desktop environments. Not sure if that ...
0
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0answers
19 views

Very slow system response when playing dvds

After upgrading to ubuntu 20.04 I'm having issues with very slow system response times when vlc is playing a dvd. If I try to switch tabs or open the start menu nothing will happen for minutes and ...
0
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0answers
26 views

Ubuntu 20.04 Gray screen on VNC

I have a droplet on Digital ocean. I can access the ubuntu's GUI from there just fine. I can ssh from putty. However, I can't make this gray screen go away when accessing from VNC. I have tigervnc ...
0
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0answers
18 views

How do I fix Boot and Mount After Install?

I installed xubuntu(xubuntu-20.04.1-desktop-amd64) with the option to erase drive and use all 500gb. When I boot the computer goes to BIOS screen, unless I have the USB plugged in it works in live ...
1
vote
1answer
24 views

I can see /bin/bash folder but why the command throws error [duplicate]

Trying install the Lotion on my Ubuntu. When running ./install.sh bash: ./install.sh: /bin/bash^M: bad interpreter: No such file or directory it throws the error. I then cd into that folder and found ...
0
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0answers
16 views

cmake is unable to find nvcc in ubuntu. is my bashrc file correct?

this is the cmake file i am using. cmake cuda works fine on windows but requires setting the CMAKE_CUDA_COMPILER path on ubuntu to work. cmake_minimum_required(VERSION 3.5) if (UNIX) # cuda ...
0
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0answers
25 views

Ubuntu 20.04.1 LTS 64-bit desktop: automatically upgrad to Tor Browser 10.0 version, it can’t run

container:VirtualBox Version 6.1.14 r140239(Qt5.7.1). System OS version:Ubuntu 20.04.1 LTS 64-bit desktop. Tor Browser version:10.0 . Manually download the Tor Browser installation package from the ...
0
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0answers
19 views

Lightdm show network

there are keyboard, session manager, accessibility and shutdown icons in the upper right corner of the lightdm login screen. How can we add the network icon here?
0
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0answers
21 views

How can I make the size of a GUI in Ubuntu 20.04 larger?

I am using an open-source software, dlclivegui, however, the GUI windows is very small. I am not sure what setting in my Ubuntu 20.04 has made the Window so small since there is this GitHub issue from ...
0
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0answers
13 views

How to make the mongodb replica set keep on running?

My environment: Ubuntu 18.04.3 LTS on Hyper-V Windows 10. I am trying to convert a standalone instance to a replica set, and want to keep the replica set running. By following the documentation in ...
3
votes
1answer
100 views

Desktop launcher won't launch the script

I read about making desktop launchers here. I have already successfully made some launchers for my little Python programs. I have a program called Formreturn, for making and marking multiple choice ...
0
votes
0answers
9 views

Issues with HDMI and Panasonic TV

Ok. So we have been running our computers off our Panasonic TV through the HDMI cable. It has worked well previously. The other day, both my computer (Ubuntu) and my wife's computer (Windows 10) will ...
0
votes
0answers
27 views

Manually applying patches to vulnerable package in Ubuntu

We have discovered that we are vulnerable to CVE-2018-20482 in Ubuntu 18.04 LTS: https://security-tracker.debian.org/tracker/CVE-2018-20482 The vulnerability is in tar package. our tar package is a ...
0
votes
1answer
48 views

Fixing bad sectors of a hard drive

My hard drive is partly visible ( only 4.1 GB of 2TB ) in "Disks" and has a bad sector. I have tried using the smartmontools to check for bad sectors and then used badblocks -svn /dev/sda ...
1
vote
1answer
31 views

Ethernet not working in Ubuntu

I am having a problem connecting to my ethernet port, and the same problem persists on a fresh install of ubuntu 20.04.1, 18.04, and also of the latest Linux mint. I'm using a thinkpad t460s. It seems ...
0
votes
0answers
22 views

lsb_release insists 18.04 is the latest LTS how do I get 20.04?

I recently upgraded from 16.04 to 18.04 because the computer offered the upgrade. I didn't think anything of it until someone pointed out that 20.04 should be available. I fear something is borked. ...
1
vote
1answer
19 views

How to change the icons of snap programs

I downloaded some themes and icons to customize my whole desktop UI and the last thing I need to change is some icons. I'm using a theme and it changed all the icons except for the programs that I ...
2
votes
1answer
56 views

Adding Help file to PPA installed LibreOffice 7.0?

How about a way to install the LO associated help file that is a separate downloaded DEB? N0rbert's suggestion for the main package of LO worked for me, use the PPA (see below): But what will work to ...
0
votes
0answers
9 views

Ubuntu Server 20.04: “working init not found” — 18.04 unstalls OK

When attempting to install Server 20.04 on an old Dell machines (AMD X2, 512MB RAM), the live/installation kernel stops with the message "no working init found." I tried burning the ISO ...
0
votes
0answers
30 views

Lenovo M710Q - Freeze at boot

After upgrade of Ubuntu 19.10 to 20.04. My Lenovo M710q started to freeze at boot. I am just getting a spinning wheel with a Lenovo logo. So i did a fresh install from a usb-stick at it booted one ...
1
vote
1answer
11 views

ibus-ui-gtk3 hangul keyboard layout property panel window won't go away

I am running Xubuntu 20.04 on amd64. When I installed a Korean keyboard layout ("input method") through IBus, a small window appeared on my screen. Using xwininfo I found that this window ...
0
votes
1answer
11 views

printer queue not enabled

Printer doesn't work because "queue not enabled". Troubleshooting gives the following advice "To enable it, select the 'Enabled' checkbox in the 'Policies' tab for the printer in the ...
0
votes
0answers
27 views

can't start mysql server

I can't start mysql server. Can anyone help? root@note-remonts:/etc/mysql# /etc/init.d/mysql restart Restarting mysql (via systemctl): mysql.serviceJob for mysql.service failed because the control ...
0
votes
0answers
18 views

Pygame Is Installed On Ubuntu 18.04, But Can't Use In Itellij

I'm trying to make a game with pygame. I managed to install pygame and python 3.8 today. But Intellij won't recognize the package or let me install it. I got an error from import pygame that says No ...
0
votes
0answers
7 views

Recording system audio output by using c++ libraries [closed]

How could I record audio output in Ubuntu environment by using c++ libraries? Which ones (possible libraries) are the most useful in this kind of purpose?
0
votes
0answers
16 views

How can I map the thumb button on a Logitech MX mouse to the back navigation for Firefox 80 in Ubuntu 20.04?

I have spent most of the day trying to get my thumb button to navigate backwards in Firefox. The key command I'm trying to execute is CTRL + [. That works when I click it in Firefox. In xev, clicking ...
-1
votes
0answers
26 views

problem in moving from ubuntu to windows [closed]

my laptop was working well in Ubuntu but now i moved to windows and facing keyboard doesn't work and i tried solutions for making it typing again but didn't be fix i tried to install new windows ...
0
votes
0answers
8 views

Huge lag and screen freezes changing the brightness on Ubuntu 20.04 using the hotkeys

When I press FN+F4(brightness down) or FN+F5(brightness up) to change the brightness of my screen on my Dell Vostro 5480. It freezes my screen and it seams to "hold" the key and keep ...
0
votes
0answers
31 views

I cannot open the disk

I tried every method, but the disk won't open. The disk is invisible on Windows and unreadable everywhere. It's an m2 disk. Disk /dev/loop0: 54,98 MiB, 57626624 bytes, 112552 sectors Units: sectors of ...
0
votes
0answers
18 views

When trying to update I am getting this. How to solve this?

Ubuntu version: 20.04LTS Focal Fossa Traceback (most recent call last): File "/usr/lib/cnf-update-db", line 8, in <module> from CommandNotFound.db.creator import DbCreator File ...

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