Latest Ubuntu related questions

Score: 0
Alan Smyth avatar
How to force cmake search already installed readline in Ubuntu?
gb flag

04 64bit and trying to compile something and in my sources is this macro:

if( UNIX )
  # find Readline (terminal input library) includes and library
  #
  # READLINE_INCLUDE_DIR - where the directory containing the READLINE headers can be found
  # READLINE_LIBRARY     - full path to the READLINE library
  find_path(READLINE_INCLUDE_DIR readline/readline.h)
  find_library(READLINE_LIBRARY NAMES rea ...
Score: 0
HRSC 1 avatar
Mlton has no installation candidate
in flag

When I am trying to install mlton on ubuntu 20.04 with command sudo apt install mlton , it's showing an error mlton has no installation candidate. What should I do? I tried sudo apt update it doesn't work.

Score: 0
br1on3n avatar
System unable to detect USB port
mx flag

I'm not quite sure what led to this issue, but 1 of my USB ports suddenly stopped working. Here are some of the details:

$ lspci | grep USB
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
$ lsusb -t
/:  Bus 02.Port 1: Dev 1 ...
Score: 3
Fantastic Mr. Fox avatar
Open terminal / Run terminal apps with different shells
se flag

My default shell is zsh (with oh-my-zsh and other plugins) and everything works fine. On the other side I'd like to -- have new menu, which opens "bash terminal" (gnome-terminal with runs bash shell) -- open few apps (e.g. Midnight Commander) with bash shell.

I'm able to do 2) with env variable SHELL=BASH. Could someone explain me how to configure this please?? Thanks.

Score: 3
undefined avatar
Ubuntu 20.04.3 LTS very often freezes randomly and does not recover without force shutdown
br flag

I am running Ubuntu 20.04.3 LTS x86_64 on Intel Core i7-9750H, GTX 1650 (mobile?), 16GB RAM, NVME m.2 SSD and I do not have any other operating systems installed. Since this Wednesday (25 Aug 2021), my computer randomly freezes completely and this happens very often. When it freezes, I cannot move the mouse, toggle keyboard backlight (which usually works in the bios menu even). Combinations with the Sys ...

Score: 2
Investing TS avatar
No manual entry for chdir
in flag

I tried to look up for this common error, but I was shocked to find out there is no one simple solution, all are very specific to the issue.

My issue is, on Ubuntu 20.04 LTS, that I try to run man chdir, but get this error message No manual entry for chdir.

I tried this set of commands:

sudo apt-get install -y man-pages
sudo apt-get install -y man-db
mandb

Yet, it didn't help. Please, what am I mi ...

Score: 0
Fadi avatar
How do I know which JDK package to install?
fr flag

I'm trying to download & install a JDK (Java Development Kit) from Oracle's website: https://www.oracle.com/java/technologies/javase-jdk16-downloads.html

But I'm just not sure which package to select? alt text

OS: Ubuntu 20.04.3 LTS x86_64
CPU: Intel i7-10610U (8) @ 4.900GHz

Score: 0
SneakyFoxxo avatar
No Sound using WINEASIO/JACK with MuLab
us flag

My preferred music studio software is MuLab, and I have gotten it to work under WINE, and the default MME output works perfectly. The problem being the WineASIO driver does not produce any sound with Jack, and the driver insists on running at 48000 hz. I have specifically set the Jack GUI plug in to run at 44100 hz and use the audio output that I am actively using, but nothing. I have a feeling this mig ...

Score: 0
jesus775 avatar
Problem connecting a Nikon CoolPix L11 camera to the computer
cl flag

I have a camera Nikon COOLPIX L11 and computer with camera.
I want to connect the camera Nikon COOLPIX L11 to computer.

Score: 0
Drayt avatar
How to change permissions just for [others] group
mz flag

I have multiple subdirectories but I want to use '''chmod''' command but I want it to apply only for the [others] section. For example :

Europe : drwx-r--r--
Australia : drw-rx-r--

And I want to change only the Others section, and the other 2 to leave unchanged.

So it will end up :

Europe : drwx-r--rw-
Australia : drw-rx-rw-

Score: 1
Eugenie avatar
Unable to upgrade Ubuntu 16.04 to 20.04
cl flag

I need to upgrade ubuntu 16.04 to 20.04. When I use graphic interface, a pop-up windows tells me that all is updated and Ubuntu tells me that 18.04 must be installed first that it is normal.

But when I click nothing happens.

When I use the command line : sudo do-release-upgrade I have the message :

Please install all available updates for your release before upgrading.

I don't understand. Anyone ...

Score: 1
vfbraton avatar
How to configure keyboard for hp 246 g6 notebook?
nz flag

Since I did update from 18.04 to 20.04 my keyboard settings look like this.

enter image description here

and my keyboard layout is like this bellow

enter image description here

I tried this and it made it worse.

setxkbmap -model abnt2 -layout br

My issue is: my keymap configuration is not the same of my keyboards, signals like pipe or slash disappear or setting in another place

Score: 0
Why is a ext4 flash drive being mounted with the rights of a different user?
sg flag

I have a computer using 20.04 with three users, where only one is a system administrator. If one of the other users puts in a FAT formatted USB thumb drive everything is fine. They can access it as expected. If the same drive with the same content is formatted as ext4, it is mounted within the correct users folder, but the drives folder has the administrator user as the owner. Why is that? Can I fix thi ...

Score: 1
How to setup LIRC on Ubuntu for Raspberry Pi?
no flag

I installed Ubuntu Server 20.04.2 LTS for Raspberry Pi on my Raspberry Pi 3 B+.

$ uname -a
Linux ubuntu 5.4.0-1042-raspi #46-Ubuntu SMP PREEMPT Fri Jul 30 00:35:40 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.2 LTS
Release:        20.04
Codename:       focal

I installed LIRC and tried following this  ...

Score: 0
Mark_42 avatar
XRDP shows black screen after logout
az flag

I'm using Ubuntu 18.04.5 LTS. I installed xrdp but getting the black screen error even after I logged out from remote computer physically. (This happens even though I'm not logged into the device anymore.)

Log file:

[20210826-06:43:46] [DEBUG] Testing if xrdp can listen on 0.0.0.0 port 3389.

[20210826-06:43:46] [DEBUG] Closed socket 7 (AF_INET6 :: port 3389)

[20210826-06:43:48] [INFO ] starting xrdp ...

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