Latest Ubuntu related questions

Score: 3
John Lo avatar
Ubuntu 21.10 - GDM problem - login screen
bg flag

I just upgrade my desktop from Ubuntu 21.04 to 21.10. Everything works fine! I was happy.

But after that, I run a wrong program that will change the background of the graphical login screen to another picture.

Mostly likely the Script that I run: I downloaded the following program during 21.04 and install and run it.

 github.com/thiggy01/gdm-background

 gdm-background/gdm-background-helper /


#!/usr/b ...
Score: 1
How to check if Bluetooth is discoverable?
in flag

I know I can make Bluetooth discoverable or undiscoverable with hciconfig hci<X> piscan and hciconfig hci<X> noscan, but how can I check whether it is currently discoverable or not?

Score: 2
user31708 avatar
"Files" application says "Unable to access location, mount point does not exist" when clicking on NFS server in "Other Locations"
ph flag

I am on Ubuntu 20.04 LTS. I click on the "Files" application, and then I click on "Other Locations" at the bottom of the sidebar. Among other things, it shows an NFS server on my network:

Other Locations

I click on "WhiteAndNerdy (nfs)", and this message pops up:

Mount point does not exist

What exactly does that mean, and how do I fix it?

Updates:

Here is what I get when I right click on "WhiteAndNerdy (nfs)":

right-click menu

Here is what I get when I run

Score: 0
UCYT5040 avatar
Cinnamon: Xlib: extension "RANDR" missing on display ":1"
cn flag

I'm using Cinnamon on my VNC server. Whenever I run it, with cinnamon -d :1, I get this outputted.

Xlib:  extension "RANDR" missing on display ":1".
Xlib:  extension "RANDR" missing on display ":1".
Xlib:  extension "RANDR" missing on display ":1".
Xlib:  extension "RANDR" missing on display ":1".
Cinnamon warning: Software rendering detected: llvmpipe (LLVM 11.0.0, 256 bits)
Cinnamon warning: Log level 1 ...
Score: 0
Installation Ubuntu server on top of an existing one
hk flag

Actually I'm developing a web application using PHP and realtime Chat application and notications using NodeJs.

In a Local network There is an ubuntu server to connect some windows machines to make a Local network and a sharing some files.

There is any possibility to install another server on top of this server and allow connections ONLY and STRCLTY ONLY from the local machines? Those machines chang ...

Score: 0
Phaedr-os avatar
Uefi boot problems
pe flag

OK. I like to install linux distro on separate usb HDD disk and set the bios to boot from that. Now if I install ubuntu, the entry ubuntu will appear in the bios so that can be selected and booted from BUT two problems. If you delete that entry in the bios, even though usb disk unplugged (ie you've deleted NOTHING from the disk itself) you won't be able to boot from that disk again. Your installation is ...

Score: 1
Manicore avatar
Unable to do-release-upgrade because which python point to env/bin/python
gb flag

I would like to upgrade my Ubuntu to 20.04.3 LTS from 18.04.6 LTS but I have an error when running do-release-upgrade :

Cannot upgrade 

Your python3 install is corrupted. Please fix the '/usr/bin/python3' 
symlink.

I noticed that python point to my virtual environement even when it's not activated.

user@abc-lenovo-ideapad-710s-13isk$ which python
/home/user/python/env/bin/python

My question is h ...

Score: 0
trionghost avatar
Error upgrading linux-firmware and initramfs-tools (ubuntu 20.04 LTS, secure-boot enabled)
cn flag

Got error running apt full-upgrade today:

sudo dpkg --configure -a
Setting up initramfs-tools (0.136ubuntu6.6) ...
update-initramfs: deferring update (trigger activated)
Setting up linux-firmware (1.187.19) ...
update-initramfs: Generating /boot/initrd.img-5.11.0-27-lowlatency
W: Possible missing firmware /lib/firmware/i915/skl_guc_49.0.1.bin for module i915
W: Possible missing firmware /lib/firmwa ...
Score: 0
Maheswar KARAKKATTU KISHOR KUM avatar
My nVidia drivers wont update in Ubuntu 20.04.3. How can I fix this? (I will put the screenshot in the description)

I just installed Ubuntu 20.04.3 on a Dell XPS M1730. It works, its really good. But the problem is that whatever video I try to play (local or on the internet) it lags real hard.

I can hear the sound, but the video lags. My current nVidia driver is the 8800GTX. I thought the driver wasn't updated so I tried to update it. I keep getting this message:

Screensjot

If its not a driver problem, please let me know. ...

Score: -1
tucomax avatar
How to filter rows in a csv file with bash based in two conditions?
br flag

I'm doing a project in which I have to parse a csv file (indian liver patient dataset) and I'm trying to change the position of one column. The second to last must be the last column. I'm following these approach but I don't know if It is the right one:

while IFS="," read -r col1 col2 col9 col8 col

do

echo "$col1, $col2, $col9, $col8"

done < <(cut -d "," --fields=1,2,9,8 csvfile)

Also I ne ...

Score: 1
Lenovo T14 AMD microphone/output device gives weird echoing/crackling noises
cn flag

this is my first question so please be kind regarding any mistakes, etc.

So, I've got a problem with my lenovo t14 amd laptop. From time to time, the output device makes weird echoing/crackling noises while playing videos or other people's talk from discord etc. The weird noises stay for some time (usually a few minutes, I think) and then disappear again. Turning the device off and on again can h ...

Score: 0
Mr Spoony avatar
Touchpad not working but showing up
gd flag

I know there are multiple questions like this but there was none that helped me till now. I have a Dell XPS 15 (the 2021 one)

I had the problem on Ubuntu 21.04 then I thought I'd update to 21.10 to fix everything but the problem is still there.

My touchpad isn't recognizing my touches, presses, moves, scrolls, etc. ... But if I input an external mouse, this mouse is working(but the touchpad obviousl ...

Score: 1
me2017 avatar
Why does systemd-resolved stop resolving with Ubuntu 18.04.6?
in flag

Host lulu has rebooted. It is the DNS server (lulu, bind9). From another machine (ppr01), I do the following. It seems I have to do this every time the DNS server, lulu, restarts. I could do away with sytemd-resolved and return to the traditional use of /etc/resolv.conf but I'd like to give this new implementation a chance.

ppr01# host lulu
Host lulu not found: 2(SERVFAIL)

ppr01# systemctl restart syst ...
Score: 1
Upgrade a working 21.04 installation to 21.10 resulted in a useless purple screen
in flag

I upgraded my fully functional ubuntu 21.04 installation to 21.10, and the result was a useless blank purple Ubuntu screen. Rebooting just results in the same thing. There is nothing I can do, not even getting into the bios when rebooting. Is there some way past this problem that doesn't cause all my previous settings to be lost? It's become apparent that I can't preserve anything. When I reboot the ...

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