Latest Ubuntu related questions

Score: 0
JonBelanger avatar
xscreensaver not working after upgrade to 21.04
pk flag

I recently upgraded from Ubuntu 20.04 to 21.04 (using gnome). When I run the command to startup the xscreensaver process I get the following:

xscreensaver: 16:32:30: locking is disabled (Cannot lock securely under Wayland).

When I attempt to lock the screen with xscreensaver-command -lock, I get the following:

xscreensaver-command: locking not enabled.

This all worked under 20.04, but does not u ...

Score: 0
Sedat3D avatar
Ubuntu 20.04+ distorted sound - Sounds like listening in a tunnel
cn flag

All of a sudden my audio on all devices (Bluetooth headphones, speakers, etc) sounds like everything is played at the end of a tunnel.

I have done all the steps included in:

Nothing I do gets my sound back to normal. Please help me.

Alsamixer displaying all 00 but I have sound

aplay -l output

Score: 0
ZFS Create, Export, Reimport by disk ID
cn flag

I have created a raidz2 pool consisting of 8 physical drives using device files /dev/sda through /dev/sdh and I then exported and reimported the pool to convert the pool to using disk serials instead of device files.

root@fs:/home/ubuntu# zpool create pool1 raidz2 /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh
root@fs:/home/ubuntu# zpool export pool1
root@fs:/home/ubuntu# z ...
Score: 2
Alexander Bartl avatar
Wifi and Bluetooth not working on Acer Nitro 5 AN515-45-R715 clean install of 21.04 and 20.04
ve flag

I installed first Ubuntu 20.04 and later tried Ubuntu 21.04. Both times, no wifi adapter were found and Bluetooth wasn't working either. Same story after updating packages. Wifi works on Windows. SecureBoot disabled.

To my understanding the wifi card is a Mediatek mt7961

lspci -nnk | grep 0280

05:00.0 Network controller [0280]: MEDIATEK Corp. Device [14c3:7961]

No drivers for it:

inxi -nz

Network: ...
Score: 1
Dev Kathrecha avatar
OnePlus Bullets Wireless Z Bass Edition Mic not working in Ubuntu 20.04
ne flag

I am unable to switch to HSP/HFP mode, it works only in A2DP (only speaker works). And i have already tried this solution and it got mic working, but when i selected HSP/HFP, i got too much noise in speaker (A2DP Sink gives clear sound).

It works fine on windows 10 (Same PC) and my android phone. And i checked on OnePlus site, and i can't find whether it supports HSP/HFP or not.

Score: 1
haro avatar
how can I modify the screen resolution of Ubuntu 21.04 non LTS stable version?
in flag

I recently upgrade to Ubuntu 21, but something wrong happend, because now the desk does not have the optimal screen resolution, I mean, the desk only use a small region of the whole region, then I have a black rectangle around of the desk.

I try to change the resolution using the Configuration menu, but there is not any option to change, as you can see in the image

enter image description here

I tr ...

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


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?


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

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":""}},{"changeId":"bd52dcbd-a5ab-4557-b2b8-88793c2d2964","changeType":"created","record":{"key":""}},{"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- | 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


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

-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE:  <stdin>  LINE:     401
error opening 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 ...

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