Latest Ubuntu related questions

Score: 0
spiderman101 avatar
boot loop & hardware errors
ma flag

I'm currently struggling with the boot loop on my pc. I tried installing gpu, psu and even hdd from a working pc, but it didn't solve the problem. Hoping that it will help or at least provide me with some additional logs, I tried installing Ubuntu. Right before another reboot I was able to catch a few hardware errors saying:

[0.535784] mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 0: fea04000 ...
Score: 0
multiple MAAS regions
cn flag

Say we have many datacenters across the globe. we want to manage all of them with MAAS.

MAAS rack controllers are installed 1 per datacenter, where nodes can reach them for DHCP etc..

Now should we connect all rack controllers to the same region controller? same database?

Or should we install a region controller with an independent database per "region"? like north america, europe, asia etc... and in t ...

Score: 1
nrvale0 avatar
Visual artifacts in x2go XFCE4 sessions after upgrade from 20.04 to 21.04
sh flag

folks.

I've been using x2go XFCE4 sessions on a box for ages with no problems but after an upgrade to 21.04 (from 20.04) I'm now getting strange visual artifacts: black boxes around windows, ghosting, etc. (See screenshot below.)

If I login to the box regularly -- meaning not via x2go -- everything is fine.

Anybody have any ideas as to what might be happening?

screenshot

Score: 0
Techno world avatar
Parallel starting of services at the time of boot
in flag

I am having a bit slow boot because of many services. Services listed below (Output for sudo ls -l /etc/rc$(sudo runlevel| awk '{print $2}').d):

lrwxrwxrwx 1 root root 18 Mar 21  2020 K01whoopsie -> ../init.d/whoopsie
lrwxrwxrwx 1 root root 15 Mar 21  2020 S01acpid -> ../init.d/acpid
lrwxrwxrwx 1 root root 17 Mar 21  2020 S01anacron -> ../init.d/anacron
lrwxrwxrwx 1 root root 16 Mar 21  2020 S01a ...
Score: 0
sai avatar
Capture a string from JSON response
jp flag
sai

I have below Json response for POST method in bash and would like to capture value after sessionId":" and assign it to variable session_ID.

{"changeId":"79911476-53a4-46e1-8ffd-422436b51ad1","changeType":"created","record":{"key":"159.65.198.219"}},{"changeId":"bd52dcbd-a5ab-4557-b2b8-88793c2d2964","changeType":"created","record":{"key":"161.35.111.167"}},{"changeId":"f4f5c94e-6c06-473c-b810-b7bbd69c71 ...

Score: 1
anton-tsyganenko avatar
Unable to boot with newer kernel: no working init found
es flag

Ubuntu does not boot with kernel 5.11.0-18-generic: if I just boot as usual, I get just a blank screen (with motherboard logo, if there was no grub menu), if I remove options quite splash or boot in recovery mode, I get Kernel panic - not syncing: No working init found. error (boot log).

I can boot with older kernel: 5.11.0-17-generic (both in normal and recovery modes). Almost sure, that I could  ...

Score: 1
Unnamed avatar
Calibre not working in Ubuntu 20.04 LTS
in flag

I tried to install calibre in Ubuntu 20.04 and it won't launch. I followed the instructions from another question (Calibre No Longer Working) but it didn't work. This is how I installed (version 5.20.0):

sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin

I'm getting this error:

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even th ...
Score: 0
Thiago Oliveira avatar
My touchpad doesn't work perfectly after upgrade of Ubuntu
cn flag

I used all the options on my touchpad (two fingers to scroll the page, two fingers to direct-click, etc) and after I updated Ubuntu today, it just stopped. The touchpad works, but only normal click and double click; the other options are somehow no longer available. Before, in Settings, when I went to the touchpad section, there were several options to configure regarding its features, but now when I op ...

Score: 0
Ruchika avatar
Uninstall IntelliJ idea from Ubuntu
dz flag

I have deleted all files of IntelliJ-idea community edition from my laptop, and when I search on terminal for delete, it shows not installed, but on my laptop it is available, help me to delete the IntelliJ idea completely.

Ubuntu menu

How can I remove the IntelliJ-idea from here?

privacy policy

I have deleted all files of Jetbrains then Why I am getting this page i.e. Jetbrains privacy policy.

Score: 0
anonhekel007 avatar
WRF real.exe error and rsl.error.0000
us flag

i was trying to do command

./real.exe

on my WRF-ARW terminal but this is what i got

-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE:  <stdin>  LINE:     401
error opening met_em.d01.2021-02-18_00:00:00.nc for input; bad date in namelist or file not in directory

please help me what should i do. i will give some links of my full namelist wps and namelist input

[1]: https://b ...

Score: 1
janh avatar
Why is Konsole hanging when I switch to it?
ec flag

I'm on Kubuntu 20.04 with Plasma 5.18.5 (running Kwin), Qt 5.12.8 and Kernel 5.4.0.74-generic with an AMD Ryzen 9 3900x, 64GB RAM and an AMD Radeon PRO WX 2100 on an SSD.

After some time of my machine running, some Konsole processes start to hang when I switch to them. I will see the window decoration of Konsole, but not the window content. If I wait for 10-30 seconds, it'll come back to live and ...

Score: 0
Hossein Shojaeifar avatar
Brightness not changing and desktop icons not showing randomly
ng flag

Sometimes after I login, brightness controls don't work neither on keyboard nor from settings and notification area; but I can change it using xbacklight.

I've noticed every time this happens, desktop icons also don't show up. Changed desktop icons to nemo, still have the problem, but icons load after changing displays (external only, built-in only, ...)


Notice that this does not happen all the time, ...

Score: 0
sivasdpi avatar
How to create an Ibus keyboard layout
ru flag

I want to create a new input method for iBus in (ibus-m17n).

Language for Tamil.

Score: 0
Adam Abdallah avatar
Kernel Error When I Start Dell Computer
cn flag

When I turn on my dell computer I get an option for Ubuntu. I click it. (I am currently running Ubuntu 21.04.) Anyways, I click the option for Ubuntu but then I get a list of stuff but the first line is [ 0.334034] Kernel panic - not syncing: VFS: Unable to mount roof fs on unknown-block(0,0)

It stays on that screen and I can’t get to Ubuntu!

I would show a picture but it says the image is too  ...

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