Latest Ubuntu related questions

Score: 0
gdb avatar
Cannot change HDMI brightness on ubuntu 22.04
th flag
gdb

I cannot change by any mean the brightness of a monitor connected through hdmi to an AMD rx 550 videocard on ubuntu 22.04. I used to be able before changing a now dead geforce, I did a fresh install after the new videocard. Its the only active monitor. I tried this command "xrandr --output XWAYLAND0 --brightness 0.1" with no luck. more info: xrandr -q | grep " connected"

XWAYLAND0 connected prima ...

Score: 1
simon clarke avatar
Can't run VSCode as superuser
fo flag

I am trying to run VSCode as a superuser in Ubuntu 18.04, It's solely in a lab environment to allow me to work with Ansible. Every time I load VSCode as superuser I get a white screen and nothing else, but when loaded via the "code" it works fine.

enter image description here

I could really do with it loading with superuser privileges to allow me to do my Ansible labs.

Score: 0
Chris avatar
DAC/external soundcard with optical output for watching movies with 5.1 sound
cn flag

I want to watch movies with 5.1 sound on my laptop using my current amplifier.

Problem 1: Since the HDMI connectors of my amplifier are broken the only way to connect to it is via spdif (optical and coaxial) or analog. Problem 2: My laptop has no spdif output. Only jack (stereo) or USB.

I've been looking on Amazon, etc. but nowhere it is made clear that is actualy runs with linux or that is produces ...

Score: 0
Ivan avatar
SSH strange usage text
fk flag

I can't understand ssh usage text:

usage: ssh [-46AaCfGgKkMNnqsTtVvXxYy] [-B bind_interface]
       [-b bind_address] [-c cipher_spec] [-D [bind_address:]port]
       [-E log_file] [-e escape_char] [-F configfile] [-I pkcs11]
       [-i identity_file] [-J [user@]host[:port]] [-L address]
       [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]
       [-Q query_option] [-R address] [- ...
Score: 0
david sinfield avatar
Kubuntu 22.10 - no grub menu
cn flag

I have installed Kubuntu 22.10 on an old Acer laptop and a no-name desktop. Neither are showing a grub menu on startup so I can't get to safe mode or a command shell to solve a display problem. I've run update-grub2 and it finds the boots (this is the desktop but the laptop is the same):

sudo update-grub2
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generati ...
Score: 1
fileinster avatar
Netplan: configuration divided across mutliple config files exhibiting unexplained behaviour
cn flag

Consider the following two netplan files:

/etc/netplan/00-installer-config.yaml
/etc/netplan/route-ens192.yaml

The first file has most of the config, and the intent of the second file is for additional routes for ens192. If the main config file has a single route entry, and the second file has a different single entry, only the route in the first file is applied. If additional routes are added to eith ...

Score: 0
run_the_race avatar
22.04: Sytem file dialogue broken
ke flag

You can see in the attached gif, when I try to type in the new file name, it opens up search. I can't view the location bar with CTRL-L, and there is no bookmarks section. It's very hard to save anything. Any ideas?

Using i3 window manager if that makes any difference enter image description here

Score: 0
yaimo avatar
Install Canon isensys lbp6000 on Ubuntu 22.04 LTS
ru flag

I need some exact steps to install this printer. I did already download the driver from: https://www.canon-europe.com/support/consumer_products/products/printers/laser/i-sensys_lbp6000.html?type=drivers&language=en&os=linux

lsusb
Bus 004 Device 003: ID 0bda:0411 Realtek Semiconductor Corp. Hub
Bus 004 Device 002: ID 0bda:0411 Realtek Semiconductor Corp. Hub
Bus 004 Device 001: ID 1d6b:0003 L ...
Score: 0
max avatar
Unable to use keyboard and mouse while using anydesk remote access if the display screen (lcd) is not plugged in on remote device
et flag
max

I am Unable to use keyboard and mouse while using anydesk remote access if the display screen (lcd) is not plugged in on remote device.i have multiple machines connected on lan but only one lcd so i have installed anydesk in all machines but i am unable to use keyboard and mouse if lcd is not connected.

Score: 0
Chunh Thanh De avatar
Lost ttyUSB0, Cannot open /dev/ttyUSB0: No such device or address
co flag

Previously I used putty with ttyUSB0 to read the serial log in my SmartBox, but by accident I couldn't read it anymore and when I checked, my ttyUSB0 file on Ubuntu 18.04 was lost. I have tried to fix it like turning off the device's power saving mode and creating a new ttyUSB0 file but can't read or use Putty anymore, I also tried with minicom -s same error.

Here are some of my logs:

thanhchung@Chung ...
Score: 0
mathtick avatar
How to set focus follows mouse in 22.10?
in flag

I've just noticed that it seems to be not working. It used to be a gnome-tweaks thing. What is the correct way to do this now?

I see some comment about "sloppy" but not where it is found.

Score: 0
Francesco Boi avatar
How to make brave browser use computer's proxy settings
in flag

I've install the Brave browser, but, contrary to Google Chrome and Firefox, it's not working with the proxy configuration and VPN. I tried to go check the settings and search for proxy.

From the results I opened Open your computer's proxy settings and got the message

When running Brave under a supported desktop environment, the system proxy settings will be used. However, either your system is not su ...

Score: 2
kaiserm99 avatar
Ubuntu 22.04 suspend not working / screen remains black
zw flag

Problem:
When I put my PC in suspend mode, the screen stays black. I can hear the fans of the PC and I can even change the brightness of the keyboard.

System Information:
Memory:

               total        used        free      shared  buff/cache   available
Mem:            23Gi       1,7Gi        18Gi       1,4Gi       3,2Gi        19Gi
Swap:           30Gi          0B        30Gi

Nvidia-smi:

Score: 0
fcopetti avatar
Subiquity - APT repo configuration issue
ec flag

I'm trying to customize my ubuntu server installation by adding a custom apt repository. I added the following lines to the subiquity user-data yaml:

  apt:
    sources:
      my_repo:
        source: "deb https://...path.../1.0.0/x86_64/ stable main"
        key: |
          -----BEGIN PGP PUBLIC KEY BLOCK-----

          -----END PGP PUBLIC KEY BLOCK-----

the installation starts as expected but afte ...

Score: 0
Akshay avatar
resolv.h not found in Ubuntu 22.04 (Jammy)
kz flag

Just wanted to know where is this resolv.h configuration file is located in Ubuntu 22.04 LTS Jammy Jellyfish release.

I can able to find resolv.h and res_state.h in RHEL / Fedora distros but cannot able to find it in this Jammy Release. Not sure if it is discontinued or something in the latest releases, so Dropping this question here.

the requrement is to change the MAXNS value for adding morethan t ...

Score: 0
vu tung avatar
Remove drive out of the PC
pg flag

I have a problem that I don't know how to remove my drive (vutung2001) out of the PC. Because it's the school PC, so I don't want anyone see my drive. How can I remove it?

enter image description here

Score: 1
blueren avatar
How do I identify which process is creating vitrual interfaces in ubuntu?
it flag

I'm running ubuntu 20.04 desktop version and the OS is up to date. I noticed that when I run ifconfig, there are about 32 instances of as0t* interfaces like below:

as0t0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet 172.27.224.1  netmask 255.255.255.128  destination 172.27.224.1
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 200  (UNSPEC)
     ...
Score: 0
hootnot avatar
HFS filesystem presents itself empty
us flag

Today I was confronted with an Ubuntu 20.04 virtualbox VM that failed to boot. Somehow the OS-diskimage seems lost. A second vdi-image was mounted and seems to be HFS. But mounting that filesystem (30G) only shows me an empty directory.

fsck.hfs gives a coredump

running strings on the diskdevice shows a lot of content recognizable as files/dirs of the filesystem.

Any tips to get this going again wou ...

Score: 1
dreamzboy avatar
Computer Refuses to Sleep
cu flag

OS: Ubuntu 22.10 Graphics: Nvidia GeForce GTX1060

uname -a                                                                
Linux 5.19.0-31-generic #32-Ubuntu SMP PREEMPT_DYNAMIC Fri Jan 20 15:20:08 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

After reading through all possible solutions:

Score: 0
USB device being accessed by two processes with same name
cn flag
SEU

I have a USB serial device and I am working using someone's code. Does the output below indicates a single process or two processes accessing the same USB device?

pi2@rpi2:~ $ sudo lsof | grep /dev/ttyACM0
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs
  Output information may be incomplete.
progA11    523                       pi2    3u      CHR      166,0      0t0     ...
Score: 0
bpool "almost" out of space unless I delete most of the datasets
cf flag

bpool is almost out of space. when zysys generate datasets.

# zfs list -t snapshot -r bpool 
NAME                                       USED  AVAIL     REFER  MOUNTPOINT
bpool/BOOT/ubuntu_mj0kfs@autozsys_gwio4k    72K      -      456M  -
bpool/BOOT/ubuntu_mj0kfs@autozsys_20vacl    72K      -      456M  -

The snapshot do not used much space. I have 2 GB of space. The size of the /bool directory is onl ...

Score: 0
SgtDingus avatar
TP-Link AC600 Archer T2E PCIe card is not recognized by Ubuntu 20.04
sd flag

I recently purchased a new TP-Link AC600 Archer T2E Wireless Dual Band PCIe Adapter for a new build. I have tested this card in 2 machines running Ubuntu 20.04, but I've gotten the same result. I couldn't even get the light on the bracket of the card to signal, leading me to think it was defective. To be sure, I put the card in yet a different machine running Windows 10, and it worked without hesitation ...

Score: 0
김민철 avatar
Ubuntu 20.04 smbd error
md flag

I have problems with other locations network folder mounting.

click this img(error)

I wanted to create a shared folder via cifs (Samba), so I just typed these codes, but the other shared networks that were mounted disappeared like this.

This is the process until I get an error.

sudo apt-get update && sudo gedit /etc/samba/smb.conf

    [user]
    comment = file share using samba 
    path = /home/user/share //folde ...
Score: 0
nerdfever.com avatar
How do you install Chrome Remote Desktop from .deb?
ar flag

I downloaded the .DEB from https://remotedesktop.google.com/access

I get this:

enter image description here

enter image description here

I'm on Kubuntu 22.04 LTS.

Score: 0
rado avatar
why secure boot is now failing?
cn flag

i had secure boot enabled on my dell 9320 with factory windows. after booting it from a flashdrive, i've installed ubuntu, where i opted to install proprietary drivers and with this i had to enroll mok (using the same password as provided at the instalation wizard).

after a while, i tried to recover windows from dell's recovery tool, and it failed. with this, i formated my laptop with my flashdri ...

Score: 0
Usae avatar
Couldn't Ping to Internet from Ubuntu Terminal
mo flag

Need your help to solve my problem below.

I couldn't ping to any internet IP & URL Site (ex. ping google.com or 8.8.8.8) but I can ping to any intranet IP network.

enter image description here

My Condition :

  1. I use Ubuntu 22.04.02 LTS, and install it in vmware ESXi.
  2. I have proxy in my network environment, I have set proxy in ubuntu network configuration both wired setting and in all user environ ...
Score: 0
nerdfever.com avatar
Possible to use x11vnc with encryption?
ar flag

I'm trying to setup VNC with SSL (or other encryption) for remote access.

(I don't need VNC in particular; that just seems like the the most common way of doing this. I'm open to other solutions.)

I installed x11vnc:

sudo apt install x11vnc -y
x11vnc -storepasswd
x11vnc -auth guess -forever -loop -noxdamage -repeat  -rfbport 5900 -shared -usepw

Run that way it works well, but my VNC client (on Win ...

Score: 0
bambang afrinaldi avatar
"Conflicting values set for option Signed-By regarding source" error after installed r-project
kw flag

yesterday I installed r-project on Ubuntu 22.04 and then I got the problems. The problem is that when I run sudo apt-get "function" on the terminal where "function" stands for update, upgrade, autoremove etc, it is returning errors.

For example:

polimer@polimer-ideacentre-A340-22ICK:~$ sudo apt update

E: Conflicting values set for option Signed-By regarding source https://cloud.r-project.org/bin/linu ...
Score: 0
Manap Shymyr avatar
Execution command is not working correctly
bo flag

I have this command in the crontab

 bash /opt/database/pg_backup_rotated.sh -c /opt/database/pg_backup.config >> /opt/data/logs/daily-database_dump.log 2>&1

and in the.bashrc I have PG_PASSWORD supplied for the backup user. The crontab stops by asking password while executing the above command through the terminal and works fine (it does not ask for a password). What is wrong?

I am using  ...

Score: 0
mortalic avatar
Lenovo BT mouse doesn't work with Lenovo Laptop
nf flag

I've recently moved one of my laptops to Ubuntu 22.04.01. I've been working through some issues, but one that I have failed to find a solution for is my Bluetooth mouse doesn't work...mostly. It detects fine, connects fine and even works for a split second on boot... then never works again. Works in windows fine (dual boot), so it's not the mouse. Plug in the dongle and it's fine. Dongles are terrible.  ...

The Stunning Power of Questions

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