Latest Ubuntu related questions

Score: 0
Elouan Jeannot avatar
After upgrading to Ubuntu 21.10, when screen turns off, it does not come back on
mx flag

I upgraded my Ubuntu laptop to the 21.10 and now when my screen turns off such as when it is on standby, it does not turn on again. More specifically, it turns on (the pixels make light) but it stay black. On my secondary screen, all works great.

My Linux kernel version is 5.13.0-28-generic. I tried to downgrade the kernel and that resolved the screen issue, but some other functionality like internet n ...

Score: 0
Laptop not starting up after Ubuntu dual-boot with Windows 11
br flag

I am trying to dual-boot and have installed Ubuntu 20.4.3 from flash drive using Rufus.

Running Windows 11. Partition scheme GPT, Target System UEFI.

I successfully installed Ubuntu to some unallocated disk space and tested it. All was working fine, from start and restart. However, all of a sudden, now after shutting down, when I try to start or restart the laptop I just get a black screen. I think  ...

Score: 0
Casper  avatar
Change main Ubuntu OS kernel version as default
in flag

I have been reading main questions on the form about changing the Ubuntu kernel by editing the GRUB_DEFAULT variable to point to your desired kernel version in submenu. However, I was unable to find whether it would be possible to change the Ubuntu kernel in the main menu of grub i.e. replacing where the Ubuntu OS in the menu points towards? So I do not have to go to the sub menu of the grub every ti ...

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Strange randomized colored pixels and dots on my display in Ubuntu 20.04
de flag

it is about a month that i see randomized colored pixels(dots) while working on my desktop PC, i have Ubuntu 20.04 and my graphic card is an onboard Intel UHD Graphics 630 on Gigabyte H510M S2H Motherboard, i tried X11 and Wayland, different desktops with no success!

any workaround ?

enter image description here enter image description here

Regards.

Score: 0
thewhite avatar
Python error on installing or updating
bf flag

when i typed the command: sudo apt update then its showing the problem listed below:

tom@boy:~$ sudo apt update
[sudo] password for tom: 
Hit:1 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu focal InRelease
Hit:2 http://packages.microsoft.com/repos/code stable InRelease                                                                                                                                    ...
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Mahdi Mirzadeh avatar
Problem on screen
kz flag

I just installed Ubuntu. When something is moving fast on the screen, such as when I scroll through a browser or watch a movie. It is as if the computer can not process. The problem is not the refresh rate because it is set to 60, but I think it is set to 20. My monitor supports a rate of 60 and this problem did not exist when I had Windows. The screen acts like a very old monitor. My computer does not  ...

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WIll Ubuntu 20.04.3 LTS work on my Dell Vostro 14-3468 Machine?
in flag

I want to install Ubuntu 20.04.3 LTS. But the minimum Processor required is 2GHz while my processor shows Processor : Intel(R) Celeron(R) CPU 3865U @ 1.80GHz, 1800 Mhz, 2 Core(s), 2 Logical Processor(s)

I want to know if I can install Ubuntu 20.04.3 LTS and if not any other alternatives?

Edit: Seeing my Processor Specification can I say It is 1.80 GHz which is less than what is required (2 GHz)

Score: 0
CIFS mount as user : locked file messages on applications
jp flag

I have a samba share on a Windows machine that I want to mount to my Kubuntu 21.10 machine.

Here is the line i put in my fstab :

//XX.XX.XX.XX/Folder /mnt/VM-Folder/ cifs credentials=/home/username/.smbcredentials,uid=1000,gid=1000,forceuid,forcegid,users,noauto,rw,file_mode=0777,dir_mode=0777,noperm,iocharset=utf8 0 0

I have tried several versions of this line and this is the best I got.

The issue ...

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Macintosh Keyboard — how to switch keys
tr flag

I am on ubuntu 20.04 and I have attached a Logitech Keyboard with Macintosh Layout. Withing settings I was able to add this Layout and viewing it from the Settings yields that image:

German Macintosh layout

The Keyboard itself does exactly look like the one on the image, but two keys are swapped when pressing them.

These are: ^ and <. In other words »caret key and greater key« need to be remapped.

How can I do that? ...

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Muftahu Abdulrahman avatar
Error installing pgadmin
tr flag

I want to install postgres on my ubuntu environment, i run the sudo apt-get update which i beleive is the first step of the installation. I keep getting the below error output

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8881B2A8210976F2 Reading package lists... Done

N: **Skipping acquire of configured file 'main/binary-i386/Packages' as reposito ...
Score: 1
snowest avatar
no Wifi adapter card after Update to 21.10 - XPS 13 7390
br flag

After updateing to 21.10, my wifi card is not working anymore.

sudo lshw -C network

  *-network DEAKTIVIERT     
       Beschreibung: Ethernet interface
       Produkt: Wi-Fi 6 AX200
       Hersteller: Intel Corporation
       Physische ID: 0
       Bus-Informationen: pci@0000:02:00.0
       Logischer Name: wlp2s0
       Version: 1a
       Seriennummer: 68:54:5a:b2:e7:b0
       Breite: 64 bits
     ...
Score: 0
xgeek652 avatar
IPtables firewall rules - Ubuntu
ng flag

Can you please explain to me the difference between this 2 IPtables rules, there were implemented to transfer packets from external internet users to a local server :

iptables -t nat -A PREROUTING -p tcp -d $IFACE_INTERNET --dport 443 -j DNAT --to-destination $WEB_SERVER

iptables -A FORWARD -p TCP -i $IFACE_INTERNET -d $WEB_SERVER --dport 443 -j ACCEPT

If only "NAT" rule is implemented we won't be ab ...

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