Latest Ubuntu related questions

Score: 0
Wifi connections not listed - Ubuntu KDE plasma
us flag

After restarting my pc, I am not able to see any wifi devices in my list.

$ lspci -knn | grep Net -A3; rfkill list
02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
    Subsystem: Intel Corporation Dual Band Wireless-AC 8265 [8086:0150]
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi, wl
0: hci0: Bluetooth
    Soft blocked: no
    Hard bloc ...
Score: 0
Why, and how to debug: The following packages have unmet dependencies, ... but it is not going to be installed
in flag
$ sudo apt install cuda
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situati ...
Score: 3
`... not upgraded`. how to find out which packages?
in flag

I get this message:

$ sudo apt upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.

How do I find out which packages are not upgraded, and why?

On many similar outputs like this, it additionally prints sth like The following packages have been kept back:, but not ...

Score: 2
Fst0 avatar
Problems compiling Kodi
au flag

Well I´m pretty new on systems, but i wanted to start compiling my own programs instead of using the oficial repos. The thing is that I try to compile my own Kodi, so I followed the oficial documentation and the Linux Build Guide. The problem starts on this second stage, when i reach the 3.1 Build missing dependencies, with the next command

sudo make -C tools/depends/target/wayland-protocols PREF ...

Score: 1
Screen Backlight not turning back on after resume (and cannot change display brightness in ubuntu 20.04)
cn flag

I have a HP Zbook Fury 15 G7 with Nvidia RTX5000 GPU. I installed Ubuntu 20.04 LTS

When I resume after suspend, the screen of the laptop display stays black (but pixels are being drawn and updated, it's just extremely dim) the secondary display works fine.

When I press the screen brightness buttons, Ubuntu shows the widget so it's seemingly changing the brightness, but it is not. When inspecting

Score: 0
Make42 avatar
How to remove deleted kernels from `dpkg --list 'linux-image*'`
us flag

I followed https://www.jamescoyle.net/how-to/1974-how-to-fix-a-full-boot-partition-on-linux to delete old kernels.

I checked with uname -a that my current kernel version is

Linux DarkPhoenix2004 5.4.0-88-generic #99-Ubuntu SMP Thu Sep 23 17:29:00 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

and ran

$ dpkg --list 'linux-image*'
Gewünscht=Unbekannt/Installieren/R=Entfernen/P=Vollständig Löschen/Halten
|  ...
Score: 0
IMAD ABOULHOUDA avatar
Failed to initialize SSL server context: dovecot
bh flag

I have an error on Dovecot on Ubuntu 20.04. After connecting with:

telnet localhost 110

and entering username and password, it shows me this error in /var/log/mail.error:

server1 dovecot: pop3-login: Error: Failed to initialize SSL server context: Can't load SSL certificate: There is no valid PEM certificate.: user=<>

Any help?

Score: 0
How to screencast to Barco / ClickShare
cn flag

It seems that most of my clients have decided to give up video projectors in favor of large TV screens with Barco Clickshare wireless devices...

I can't use my Ubuntu laptop anymore for presentations.

Did anyone succeed in using Ubuntu with Barco Clickshare ?

  • it seems that Linux is not supported anymore by Barco (last Linux client was for 16.04, and I can't seem to find this .deb anywhere)

  • Chrome ...

Score: 0
Sravya Kancherla avatar
How can I install sshpass without sudo permissions?
bo flag

While trying to install sshpass, I encounter this permission denied issue

gcc -DHAVE_CONFIG_H -I. -g -O2 -MT main.o -MD -MP -MF .deps/main.Tpo -c -o main.o main.c
mv -f .deps/main.Tpo .deps/main.Po
gcc -g -O2 -o sshpass main.o
make[1]: Entering directory `/home/splashbi/sshpass/sshpass-1.08'
 /bin/mkdir -p '/usr/local/bin'
  /bin/install -c sshpass '/usr/local/bin'
/bin/install: cannot create regula ...
Score: 0
OpenVPN not changing IP when accessing nginx server on the same server as the VPN
rs flag

I'm hosting a CRM on a Ubuntu 20.04 server with Nginx. And I recently noticed weird IPs connecting to my server from russia and china, so I blocked everything except our work IP for accessing it with UFW.

But now, I want to be able to access it using a VPN, so I installed OpenVPN and allowed the servers IP with UFW. But when I access my domain, it still gets blocked. When I check my IP on whats-m ...

Score: 0
GBT55 avatar
How to remove net interfaces from the right upper corner menu
in flag

I recently installed VmWare and when configuring net settings I accidentaly created two virtual interfaces (vmnet1, vmnet8) that are now useless but still appear on the gui menu and on cli when I type nmcli, ifconfig, etc. I wanna know how to get rid of this, thank you

enter image description here

enter image description here

Score: 0
Mike Hadzhiev avatar
Losing my files when restarting Ubuntu user password
aq flag

I reset my Ubuntu user password and manage to login again in Ubuntu but all my files are missing is like a new installed distribution.How can i recover my files I don't have backup.I restart from grub boot loader resume etc. I am usin Ubuntu 20.04.2-Ubuntu I reset my password from grub boot loader root shell password username and I change the password.

Score: 0
oliver petchull avatar
Ubuntu live USB stuck on loading screen
us flag

I have a Ryzen 5800u HP laptop without a graphics card. I made an Ubuntu 20.04 live USB. I get to the grub thing and then select Ubuntu. It then performs some kind of file integrity check, which passes without errors. Then nothing happens. I have been staring at a black screen with the Ubuntu logo, the HP logo and a spinning loading circle. For 5 min.

Score: 1
Aravindhan Krishnan avatar
Tar a file along with preserved file capabilities
ve flag

We are building a root filesystem of Ubuntu 20.04 with packages installed using debootstrap and finally tar it using:

tar -c --use-compress-program=pigz -f $ROOTFS --numeric-owner -C $TMPDIR .

Eventually, when we untar the root filesystem, the file capabilities are lost. For example, ping loses its cap_net_raw+ep capability and this is causing untoward behaviour in production.

I tried passing vario ...

Score: 1
Pabolito Garci avatar
create custom ISO in Ubuntu Server 21.04 for unattended and offline installation
cn flag

I need to create a .ISO with the cloud-init folder inside that would hold the autoinstall-user-data and meta-data files and edit the grub file to use it

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=21.04
DISTRIB_CODENAME=hirsute
DISTRIB_DESCRIPTION="Ubuntu 21.04"

in the base .ISO for this release there isn´t (I don`t know if for a good reason?), the isolinux folder and files so if I follow the tipical procedure ...

The Stunning Power of Questions

Much of an executive’s workday is spent asking others for information—requesting status updates from a team leader, for example, or questioning a counterpart in a tense negotiation. Yet unlike professionals such as litigators, journalists, and doctors, who are taught how to ask questions as an essential part of their training, few executives think of questioning as a skill that can be honed—or consider how their own answers to questions could make conversations more productive.

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