Latest Ubuntu related questions

Score: 0
Andrew avatar
How can I start the vino-server service with the monitor unconnected?
fo flag

I installed vino-server on ubuntu 18.04, I dialed off the monitor from the machine and restarted it. Then I ssh and cannot start the vino-server service with the command /usr/lib/vino/vino-server, how can I start the vino-server service with the monitor unconnected ?

Score: 0
Andrzej Więcławski avatar
PostgresSQL dump version recognition Bash script
de flag

I often recreate variuos customer databases on local dockers to test new ERP functionalities in the development environment So, PostgreSQL dump file usually starts with:

--
-- PostgreSQL database dump
--

-- Dumped from database version 13.3 (Ubuntu 13.3-1.pgdg20.04+1)
-- Dumped by pg_dump version 13.3 (Debian 13.3-1.pgdg100+1)
...

Thats why my bash script 'restorefromdump.sh' (building temporary dock ...

Score: 0
kanishk avatar
Microphone slider missing in top right panel after update. 20.04
id flag

After updating nvidia driver, Microphone Slider in top right panel is missing. It shows and works fine in the settings app but lacks the easy access.

I've tried re-installing utility software, indicators package, missing packages but no luck.

This also happened in my kali installation. No luck there.

this is how it looks now

Score: 0
M U avatar
Failed: Installing Ubuntu 20.04.2.0 LTS on External SSD
au flag
M U

I am experiencing a problem when trying to install Ubuntu 20.04.2.0 LTS onto an external SSD. I hope to get help with the following errors:

Thank you.


Mission: To install Ubuntu 20.04.2.0 LTS on an External SSD

Hardware to be installed on: Sabrent USB Type-C Enclosure Crucial 1TB NVMe M.2 SSD

Installation media: Sandisk dual USB-C Go flash drive


Partitioning scheme as per installation process: /Boo ...

Score: 1
Janchi Garcia avatar
How to find and rename files with different extensions
cn flag

I have some files inside a folder like this:

DUMAK011.618
DUMAK011.619
DUMAK011.620

I would like to rename them to:

DUMAI011.618
DUMAI011.619
DUMAI011.620
Score: 0
Akshay Deshmukh avatar
After power off in Ubuntu when i start it again-> Grub Menu appears-> Purple login screen appears-> after login blank screen appears!! Why?
cn flag

All was going fine but when i power off the ubuntu after work and tried to restart it after login the screen goes into blank.(after hitting the shutdown button and again when i start sometimes it works). I have heard this issue is for NVIDIA Graphics. My Acer predator Helios 300 uses GeForce GTX 1660Ti. I Have done no updates recently which could cause such issue.

System currently using a manuall ...

Score: 0
Dylan Verallo avatar
How do i change the current Display Settings to use my nvidia GPU rather than my intel integrated graphics?
ng flag

I'm running on a laptop with a gtx 1650 mobile but Ubuntu seems to want to use the integrated graphics instead. As shown here. Game using Integrated graphics

I've tried to go into my Nvidia X server settings but it already says that I'm using the Nvidia Profile as shown here. Nvidia X Server Settings Image

What should I do here to fix this? Thank you.

Score: 1
Ubuntu Dual Boot fails with loading UEFI:db X.509 certificate (-65) error
in flag

I have a dual boot (Windows 8.1 & Ubuntu 18.04) Toshiba Satellite C55-A5310 laptop which this morning gave the following errors

Problem loading UEFI:db X.509 certificate (-65) 
Superblock last mount time is in the future.  
(by less than a day, probably due to the hardware clock being incorrectly set)

Note: System has been working without issue for a long time, and I regularly install the recomme ...

Score: 3
HippoMan avatar
apt forgot about more than 1,000 packages, and I'm unable to reinstall
us flag

I'm running 20.04.2 LTS (Focal Fossa)

I hadn't run aptitude for a couple days. It always worked fine, but when I tried it now, it started giving me the "e Examine" dialog each time I run it. When I type "e", it goes into a 10-20 minute run with the following showing at the top of the page:

open: aaa; closed: bbb; defer: ccc; conflict: ddd

Where 'aaa', 'bbb', 'ccc', 'ddd' are increasing numeric val ...

Score: 1
apt update error: Conflicting values set for option ALLOW_INSECURE regarding source
ng flag

As subject, today when I tried to apt update, my ubuntu server throw error message that

E: Conflicting values set for option ALLOW_INSECURE regarding source <set> <unset> 
E: The list of sources could not be read. 

How to detect what make this problem and how to fix it?

Score: 1
ssh: Could not resolve hostname foo: Temporary failure in name resolution
co flag

There are three Ubuntu machines (20.04, 21.04) that are accessible from my workstation via their hostnames foo, bar, baz.

However, after a power outage that affects only the network router (Unifi Dream Machine), all 3 systems can no longer be reached by their hostnames

~$ ssh x@foo
ssh: Could not resolve hostname foo: Temporary failure in name resolution

Restarting machines bar and baz allowed them  ...

Score: 0
Steven avatar
Deleted boot partiton to extend another partition
gb flag

stupidly my disk setup was set up as sda1 as root, sda2 as boot, and sda3 as additional storage. I wanted to merge sda1 and sda3 partitions.

What I did was make a image of sda2 (boot), deleted it and merged sda1 and 3, assuming I could make another sda2 partition and just restore the image. Obviously this did not work. Is there any way I can make this bootable again?

Thanks

Score: 0
Sun Jar avatar
Ubuntu 20.04 no purple login screen
in flag

I am using ubuntu 20.04 LTS been a year. Yesterday I wanted to change the color of the top bar. I tried to install ‘dconf-editor’ but I had got some error and the installation failed, so I uninstalled it. Then I tried to use these two commands to install gnome-tweak:

gnome-shell-extension-autohidetopbar
gnome-tweak-tool

I installed them successfully, but when I restarted, The familiar purple login ...

Score: 2
Permission denied to a file in ~/.cache directory
de flag

When I set an output file in the home directory, the following curl command works. But when I use ~/.cache/mydir, it returns "Permission error".

$ ls -al ~/.cache/tera
drwxrwxr-x  2 shinichi shinichi 4096 Jul 28 09:04 .
drwx------ 16 shinichi shinichi 4096 Jul 27 20:52 ..
-rw-rw-r--  1 shinichi shinichi    0 Jul 28 09:04 radio_searches.json


$ curl -X POST -d tag=smooth http://all.api.radio-browser.in ...
Score: 0
Kong avatar
jobs shows nothing even with processes running in the background
jp flag

I ran this script that runs several processes in parallel

./train-eyecnn.sh 9 0.1 0 "key_relative_gaze" | tee "../tmp/9_0.1_0.txt" & 
./train-eyecnn.sh 9 0 0 "key_relative_gaze" | tee "../tmp/9_0_0.txt" &
./train-eyecnn.sh 9 0.1 1 "key_relative_gaze" | tee "../tmp/9_0.1_1.txt" &
./train-eyecnn.sh 9 0 1 "key_relative_gaze" | tee "../tmp/9_0_1.txt" &

wait
echo "All complete"

However, ty ...

Score: 0
Problem with wifi, after seconds lose internet
us flag

I have problems with some networks in Ubuntu 18.04 When I connect to the network, everything is fine. A few seconds later (5/10 seconds) it stops working, from the browser I get DNS_PROBE_FINISHED_NO_INTERNET

If I execute ping 8.8.8.8 I get a similar result, the first few seconds works fine and then I stop getting a response.

  • This started to happen to me when I changed the router. The router I bou ...

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