Latest Ubuntu related questions

Score: 0
puma avatar
Cmake fails to build an executable
in flag

Trying to build a program with Cmake Results in:

me@ubuntu-20-04:~/Downloads/UxPlay/build$ cmake ..

-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:3 (project):
  No CMAKE_CXX_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to  ...
Score: 1
Dequog avatar
How to remove roblox from ubuntu
es flag

So I installed this game that just found out about called Roblox to Ubuntu using this link, but it was pretty boring, so I want to uninstall it. Will you please help me?

Steps in video:

  1. sudo apt install git

  2. git clone https://github.com/roblox-linux-wrapper/roblox-linux-wrapper.git

  3. wget https://cdn.discordapp.com/attachments/563966858462625822/853901578376708106/wine-tkg-staging-fsync-git-6.10. ...

Score: 1
TBazz avatar
bluetooth not working on ubuntu 20.04 dual boot
ve flag

I have a Windows-installed Dell Inspiron 5502 and installed Ubuntu 20.04. Bluetooth is not working at all, since it does not show that it detects any devices. I'm trying to pair my Philips headphone—this does not work: How do I connect to my Bluetooth headset?.

Where should I be looking at to solve this?

Score: 0
Ubuntu 20.04 randomly shuts down when in suspend state
jp flag

I have three almost identical systems with Ubuntu 20.04, they are desktop systems, not laptops. I have them set up to suspend after 20 minutes of inactivity. One of the three systems exhibits this strange behaviour. It always suspends as I set it in settings, but randomly after a few hours in suspend state, it shuts down. This problem does not exist if the system is running and not in suspension. Has an ...

Score: 1
Jam A avatar
installing nginx: E: Failed to fetch ... 404 Not Found
ci flag

Whenever I try to install NGINX on my Ubuntu 20.04 LTS it outputs:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  gconf-service gconf-service-backend gconf2-common libappindicator1 libc++1
  libc++1-10 libc++abi1-10 libdbusmenu-gtk4 libgconf-2-4
Use 'sudo apt autoremove ...
Score: 0
Rowan Martel avatar
Problem with lock files while installing Vulkan
cn flag

I am trying to install Vulkan on Ubuntu 20.04 by following the steps given on this website: https://linuxconfig.org/install-and-test-vulkan-on-linux. I am following the steps for AMD, not NVIDIA. When I run the line: # apt install libvulkan1 mesa-vulkan-drivers vulkan-utils, however, I receive the following errors:

E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied)
E ...
Score: 0
are www-data user will disabled when apache stop?
fr flag

Some time ago there was a lot of suspicious processes running as www-data. But after I stop the apache2 server by using apachectl stop, all processes are disappeared from the process list. I start apache2 again by use apachectl start command and still no running process as www-data again.

are www-data user will be disabled when apache stop? or the processes just stopped before I stop apache server?

 ...
Score: 0
Ero Stefano avatar
How to install downloaded app?
ru flag

In Windows there is a wizard for the installation. How does that work in Linux/Ubuntu?

Example: I downloaded https://nodejs.org/dist/v14.17.4/node-v14.17.4-linux-x64.tar.xz. How can I install it and use it?

Score: 0
Jean avatar
Partially encrypted installation
in flag

Noob alert: slowly ditching windows. Speak slowly.

With that out of the way, I want to install Kubuntu 20.04 on a single dedicated SSD with an encrypted root&swap but I want to keep some free space so that I can add a new partition without encryption to store some VM images (which have already their own encryption).

  • The installer (with the encrypted LVM option) can only use the whole disk with no ...
Score: 2
JPetersonVNL avatar
Read Only filesystems across multiple devices
my flag

The company I work for has about 100 Ubuntu 18.04 server machines scattered across the United State as part of one of our product lines. We haven't had ANY issues with these machines for 1-2 years, until this past week. In the past 5 days six units have had critical errors ultimately resulting in a Read Only file system.

I finally got physical access to one of the devices. I found the following i ...

Score: 0
Cant access Ubuntu One on 20.04
br flag

Just installed 20.04 on my laptop. I can login and view my desktop but it refuses to let me access Ubuntu One. Can anyone help me please?

Score: 0
andywoody avatar
How to customize Logitech trackball (M575) button options?
hu flag

I tried using Solaar, but apparently M575 isn't supported.

Does anyone have other options? I'd like to change the pointer speed as well.

Thanks a lot.

Score: 1
How do I configure fontconfig to map a font name with a hyphen?
cn flag

I'm having trouble with fontconfig recognizing the ui-monospace font that several websites (including Github and Stack Exchange sites) have recently started using. Firefox doesn't yet have that special CSS reference to system fonts (see FF bug 1226042, the draft spec, and its Can I Use entry), and FF is also fooled by fontconfig, which will satisfy any font with its default assignment for sans-serif ...

Score: 0
Pragyan avatar
Stuck on black screen with blinking cursor and mouse pointer after I force closed during upgrade
us flag

I ran sudo apt upgrade. The process got stuck at 49% and my laptop hanged. I couldn't do anything at all to make it work, so I force closed like I used to do in Windows. Now when I boot it up, it sticks on a black screen with a blinking cursor and mouse pointer. How to fix it?

Some background

Also, my laptop is Acer Aspire 7 (Ryzen 5000 series), so it has some problems with kernels 5.10 lower. So I had up ...

Score: 0
Fifi Cek avatar
Screen native resolution not present on list
ve flag

Ubuntu 21.04 with Wayland. All this on VirtualBox 6.1.22, VMSVGA graphic controller, full-screen mode, no scaling (100%). Ubuntu is at current update status. Also VirtualBox GuestAdditions. Single display setup, built-in screen of all-in-one build of hardware. Host native resolution is 2560x1440.

PROBLEM This resolution is not present on list: Ubuntu Settings > Displays > Displays tab >  ...

Score: 0
CyanMagentaYellowBlack avatar
How can I get my keyboard to work during boot again after it was disabled out of the blue?
lc flag

I have Ubuntu 20.04 dual booted with Windows 10. I had my grub file setup so that I would enter the grub menu upon boot and it has worked fine for weeks. This morning however, I booted on my computer and it skipped the grub menu and my grub settings were changed. I tried changing the settings back to what I had them set to when everything was working fine and it did bring back the grub menu, but introdu ...

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