Latest Ubuntu related questions

Score: 0
SusetStar avatar
I deleted Xorg and now I have Lag
cn flag

I was following the steps in a tutorial and using this command

sudo apt purge xserver-xorg-video-intel

and now the interface and web pages are lagging

I already tried using the opposite command (sudo apt-get install xserver-xorg-video-all ) But it does not work

Score: 0
How to get newer ssl certificats
br flag

My browser is returning a cognito-idp.<region>.amazonaws.com/:1 Failed to load resource: net::ERR_CERT_COMMON_NAME_INVALID error when i try to reach my company site. My co-workers on mac have no such issue, which leads me to believe this is related to my OS and computer.

if i visit the cognito-idp URL and look at the URL I'm told it's invalid and that tit was issued on October 21 2021, which would ...

Score: 0
Firewall monitoring and notification
cn flag

On windows platform I always use netpeeker for having an eye on my network activity. It allows to see any process that have outbound connection or listening on any port plus each process bandwidth usage. Another feature is when I double click on any process it shows which port(s) the process using and what address/port is connected and finally the most interesting part for me is ability to define rule t ...

Score: 5
Libreoffice broke after updating to Ubuntu 21.10
jp flag

When I first updated to Ubuntu 21.10, LibreOffice just stopped working. However, I found out that some java dependencies where missing. After downloading them, LibreOffice worked again. The only problem is... It takes over 5 minutes to open anything (even a blank document), but after some research I found this:

https://ask.libreoffice.org/t/libre-office-is-slow/1789

The only problem is that it see ...

Score: 0
shimx64.efi missing on ubuntu live usb
mn flag

Every time I create my ubuntu live USB I do NOT see shimx64.efi available. I only see grubx64.efi . How do I fix this?

I have created USBs using unetbootin, rufus, and startup disk creator on ubuntu, and none of them work as I still don't see shimx64.efi. And I used a GPT partition table with UEFI like everyone suggested. It still doesn't work.

Does anyone know why this is happening?

Score: 1
jurosik5000 avatar
Having a problem with installation of a package that has the architecture of (any) on Ubuntu and also on Raspbian
md flag

The output is:

dpkg: error processing archive /tmp/apt-dpkg-install-v4lZRv/5-hashcatch_1.2_any.deb 
(--unpack):
package architecture (any) does not match system (amd64)
Selecting previously unselected package libhwloc-plugins:amd64.
Preparing to unpack .../6-libhwloc-plugins_2.4.1+dfsg-1_amd64.deb ...
Unpacking libhwloc-plugins:amd64 (2.4.1+dfsg-1) ...
Errors were encountered while processing:
/tmp ...
Score: 0
LoremIpsum avatar
Toolbars and their icons are too large
my flag

I'm not sure when this started, but now the toolbars and icons of GTK applications are embarassingly large. For example, below are Xournalpp and Abiword:

That is in a clean environment (test user without any configuration whatsoever, so default GTK theme, etc.).

I have found How do I force a 16x16 icon size for toolbar icons in GTK 3?, which suggests putting

gtk-icon-sizes = panel-menu=16,16:panel=16, ...
Score: 0
Installing ubuntu with secure boot disabled?
mn flag

Since my Ubuntu Live USB does not have shimx64.efi files, I'm installing Ubuntu with Secure Boot disabled. I have no choice.

Can I just enable secure boot later on my computer? Will that break anything like kernel modules that weren't signed before?

Score: 0
al ness avatar
Iwant to upgrade my 16.04
pk flag

Since my 16.04LTS has expired, in upgrading 16.04 to 20.04 is it better to upgrade one year at a time or all 4 years at once? I've not ever upgraded before so I'm not sure how it works.

Score: 0
Grumpy ol' Bear avatar
Where are the 'sudo crontab -e' entries stored?
cn flag

I want to backup my extensive crontab -e entries, where are those stored when I access them as user with sudo crontab -e ?

Score: 2
pheidrias avatar
fastboot doesn't work anymore in Ubuntu 21.10?
in flag

I'm having trouble flashing my smartphone via fastboot.

The smartphone in fastboot-mode is recognized:

sudo fastboot devices
BH905FBU9E  fastboot

but flashing results in no reaction until the usb cable is pulled :-(.

sudo fastboot flash recovery twrp-3.5.0-0-20210117-lilac.img 

with no output until after pulling the cable:

Sending 'recovery' (33824 KB)                      FAILED (Write to device  ...
Score: 0
zewill avatar
Is there a good Linux diagnotic tool to check laptop slowness?
in flag

I bought a Samsung laptop (NP770Z7E) with Windows 10 but it was running too slow. So I installed a Linux OS but it still slow. It seems some problem with memory but I would to see if some tool can test and report the problem.

Score: 1
Sayak Mukhopadhyay avatar
What is the purpose of cgroup_enable=cpuset cgroup_enable=memory cgroup_memory=1 swapaccount=1
ua flag

I am trying to setup a kubernetes cluster on a raspberry pi cluster using Ubuntu 20.04.3. In many online guides available, one of the steps is mentioned as follows:

Edit the /boot/firmware/cmdline.txt and add cgroup_enable=cpuset cgroup_enable=memory cgroup_memory=1 swapaccount=1 at the end.

The above step is mentioned without any explanation. So, to check my current configuration (without applying the  ...

Score: 1
VirtualBox giving "kernel driver not installed" error
cn flag

I'm a complete newcomer to Linux, and I want to install a couple of distributions in VirtualBox so I can see what they're like. I've installed the program and followed various tutorials online but every time I try to create a machine I get the following error:

Kernel driver not installed (rc=-1908)

The VirtualBox Linux kernel driver is either not loaded or not set up correctly. Please try setting ...

Score: 2
Saeven avatar
Why does attempting to remove certain kernels, reinstall them?
sb flag

I've never run across this issue, but was hopeful to get a bit of guidance before I dig in.

This is occurring on Ubuntu 18.04.6 LTS.

$ uname -r
4.15.0-161-generic
$ dpkg --list | grep linux-image
ii  linux-image-4.15.0-153-generic         4.15.0-153.160                                                     amd64        Signed kernel image generic
ii  linux-image-4.15.0-156-generic         4.15.0-15 ...

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