Questions tagged [debug]

Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program

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XCrySDen is not working [closed]

i have installed Ubuntu 22.04. XCrySDen is not working on my laptop and in terminal User. XCrySDen is a crystalline and molecular structure visualisation program aiming at display of isosurfaces and ...
Swarnim Shrestha's user avatar
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Roslaunch not found error when executing ros noetic project built and installed with custom snap (using snapcraft tool)

So I have this multi-package ros project that I want to build with snapcraft so I can distribute it to client and update it easier. However, I managed to build it but for some reason the app cannot ...
Christopher Lajoie's user avatar
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why bashdb step+ command not found?

Ubuntu 20.04.6 bash debugger, bashdb, release 4.2-0.8 When I used step+ command, 'not found' occured. /usr/share/bashdb/lib/processor.sh: line 286: _Dbg_do_step-: command not found step works fine.
tyroc's user avatar
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why no source code info for system libraries in debug symbols from Debuginfod of 22.04

I'm debugging my app in a 22.04 system(with WSL2), using vscode and gdb. I've setup the debuginfod services according to the official docs already, everything goes well. the debug console output and ...
JC_Yang's user avatar
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I cant export to .apk file my python program usin buildozer and Kivy

I was following this tutorial to learn how to export my project (wrote in python) to an .apk file. (https://www.youtube.com/watch?v=pzsvN3fuBA0&t=4s) but I get this error while I was running ...
KevinPerezAliaga's user avatar
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76 views

gnome-screenshot does not work from VS Code debugger, but works fine without debugger

Fresh Ubuntu 22.04.3 LTS installation, VS Code, python 3.10.12. The following python script: tmpFilename = '.screenshot%s.png' % (datetime.datetime.now().strftime('%Y-%m%d_%H-%M-%S-%f')) subprocess....
MiLa's user avatar
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2 votes
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Debugging Kernel Module with dynamic debug

My system: mik@michaelUbuntu:~$ cat /etc/os-release NAME="Ubuntu" VERSION="20.04.6 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04.6 LTS" ...
Bil_Bomba's user avatar
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310 views

Linux kernel debug symbols missing for some kernel builds

I am trying to install debug symbols for the kernel to get SystemTap working. I am getting the below error when I try to install debug symbols: $ sudo apt-get install linux-image-$(uname -r)-dbgsym ...
sammy17's user avatar
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VLC - specifying debugging option and log file doesn't work

I am trying to display an mp4-file using vlc. I have specified the verbosity level as 2 (debug) and a log file name of ~/vlc.log. When I run vlc, it does NOT display my slideshow. Nevertheless, I ...
hstoellinger's user avatar
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How to enable debug keys/ mode in LE Secure connection journey

Test bed setup Master device - ubuntu 22.04 with BLE5.0 dongle Slave device - Custom Bluetooth 5.2 device with BLE application running Sniffer device - nrf52840 dongle with ...
user1696265's user avatar
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How to provide stackstrace with debug symbols for gimp3?

I reported a bug with GIMP3, and I was asked, Please install or compile debug packages for glib2, gtk3, and gimp, and provide a stacktrace with debug symbols. Which all packages are these? How to ...
Archisman Panigrahi's user avatar
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66 views

Logout on Wacom/Intuos 4D Mouse Use - how to figure out reason?

EDITED: I have a newly installed Ubuntu (Ubuntu 22.04.1 LTS Desktop, x86_64, X11) and connected an old Wacom USB tablet (gd-1218-u , 'Wacom Intuos 12x18' - Intuos(1)) - it worked great, out of the box ...
loonquawl's user avatar
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Where can I find debug symbols for KDE Discover

I am trying to provide a backtrace for repeated crashes of KDE Discover, but cannot find (much less install) the needed debug files. I have attempted to find debugging symbols for Discover by adding ...
R B's user avatar
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How to install OpenJDK-19 debug symbols on Ubuntu 20.04?

I've installed OpenJDK-19 on Ubuntu 20.04 using snap. However, I'm not able to find the package in snap which corresponds to openjdk-19-dbg in apt, and I can't find OpenJDK-19 in apt at all. Could you ...
Serge Rogatch's user avatar
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503 views

Unable to find /usr/lib/debug/modules/...vmlinux file for debugging dump file with crash utility

I need to debug a vmcore dump file using crash utility, but i don't see a debug vmlinux in my /usr/lib/debug/modules/ path. Actually in my system, the modules directory is not present under /usr/lib/...
akumar's user avatar
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Google chrome only runs in debug mode

Today I updated my Ubuntu distribution to the latest available, from 20.04 to 22.04. During this update, everything went great, but at the time that I opened chrome browser, I noticed that this is a ...
Asier Callejo's user avatar
2 votes
0 answers
101 views

Unable to get Gnu C Library debug symbols

I have two machines. One is Intel x86_64, the other is aarch64 (although I doubt the architecture variation is the problem). Both are Ubuntu. I compile the same program on each of the machines, with ...
whoami's user avatar
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Need to debug postfix service for slow bootup

I had slow bootup recently and found using systemd-analyze that postfix-service is taking almost 25 s to start, critical-chain told me it was specifically postfix@-service. PS: I also do not know what ...
Aaryan BHAGAT's user avatar
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1 answer
67 views

Source for ccnet-dbg and libccnet-dbg

I am trying to install SeaFile server on Lubuntu 20.04.3. So that I can report any errors, I ran the command in the documentation and tried to install ccnet-dbg and libccnet-dbg. I got the error "...
JimH44's user avatar
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2 votes
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228 views

How to disable the splash screen on Ubuntu 20.04 on shutdown (not on power on)

I want to turn off the splash screen when shutting down, but I can't find anything that talks about disabling the splash screen when shutting down. Does anybody know how I can achieve this?
Farel Reski Aditiya's user avatar
3 votes
1 answer
381 views

Compiling the source code creates bigger files comparing w/ Ubuntu prebuilt packages, why?

Am I doing anything wrong? I'm building some libraries from the source code, but the file sizes are much much bigger comparing w/ Ubuntu packages. Here is an example. https://github.com/linuxwacom/...
Fantastic Mr. Fox's user avatar
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1 answer
64 views

How to trouble shoot arbitrary Linux programs

Currently I am trying to become better at using Linux and therefore I would like to know how Linux experts troubleshoot arbitrary programs. On my new laptop I could not burn a cd via k3b. It just got ...
Mister X's user avatar
1 vote
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312 views

Weird hibernation behavior with systemctl hibernate

I've followed this tutorial to enable hibernation on my ubuntu device: Anthony O.'s answer to Hibernate and resume from a swap file When I hibernate using sudo s2disk, everything works fine and there ...
Mahan Lamee's user avatar
2 votes
0 answers
697 views

Ubuntu Desktop 20.04 sudden random turn off

I'm on Ubuntu Desktop 20.04 with a LENOVO ThinkPad L13 Yoga. Since a few days ago, Ubuntu randomly suddenly turns off. No Shut down just an immediate turn off. It looks like a power loss. It sometimes ...
sash_wash's user avatar
  • 111
4 votes
1 answer
2k views

Kubuntu: Using Wayland / Nvidia / KDE on 21.04

I've just updated Kubuntu from 20.10 to 21.04. When trying to start a new session with Wayland it freezes at the vendor splash screen. How would I go about it to debug this? Suspecting it might has to ...
Johan N's user avatar
  • 41
3 votes
2 answers
2k views

What is wrong with ddebs.ubuntu.com

Did something expire that should not have? I am using debug symbols on my Ubuntu 20.10 install, and now I get this when I run the apt-get update command. W: An error occurred during the signature ...
Bram's user avatar
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1 vote
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touchpad stops working intermittently, help discovering packeg or kernal issue to troubleshoot or file bug report

So, New thinkpad T14s AMD, Kubuntu 20.10. the touchpad will sometimes stop working. Sometimes I turn on the laptop and the touchpad works, other times no. The output of "cat /proc/bus/input/...
nevermore's user avatar
6 votes
1 answer
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Missing fonts cause LibreOffice Impress to mess up the layout of the slides

I have reported a LibreOffice Impress bug here. In that bug, the text of a slide went beyond the page margin Although it looked fine in Microsoft PowerPoint Now I cannot reproduce the bug anymore. ...
robertspierre's user avatar
2 votes
0 answers
144 views

Ubuntu preset the letter ‘e’ to all entries I make

I am a new Ubuntu user. I have an odd problem, namely that the letter ‘e’ is added to the beginning of all entries I make. I recently added a keyboard short cut (ctrl + f) but following the problem ...
MinaThuma's user avatar
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4 votes
2 answers
5k views

Trying to install KDbg debugger

I'm trying to install KDbg debugger to use while I code in C and have some problems in figuring out what to do. As suggested in this other similar question: How to install software provided in ...
Spyromancer's user avatar
0 votes
1 answer
2k views

Update to 20.04 VSCode debugger "Attach by Process ID" do not see process

I updated Ubuntu to 20.04, after this VSCode debugger "Attach by Process ID" do not see processes run with nodejs. I tried reinstall other versions from Ubuntu Software, and also from website, but it ...
Nikita Mankovskii's user avatar
1 vote
0 answers
136 views

19.10: `curecoin-qt` wallet installation fails on the last two steps

In order to make the most of the Folding@Home project (https://foldingathome.org/covid19/) and fight COVID-19 from our homelabs — tokenwise — I've tried to install the curecoin-qt wallet (https://...
Jayaguru-Shishya's user avatar
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0 answers
1k views

FAHClient cannot connect on Ubuntu 19.10

I've been running FAHClient successfully for one day now, and hence been contributing to the protein folding project. ... Well, I was until I recently booted my system. Now, the client won't connect, ...
Jayaguru-Shishya's user avatar
2 votes
1 answer
644 views

How to serve ddeb files with reprepro?

I maintain our internal apt repo of Ceph, its build script generations some ddeb files, which is the debug symbol file. But reprepro cannot add those ddeb files, with errors like: Unknown file type:...
can.'s user avatar
  • 181
1 vote
0 answers
47 views

computer goes back to sleep after a few seconds without any error message

I encounter a problem with my ubuntu 19.10 with gnome install on a laptop(razor blade from 2017). As quite unexperienced with the linux architecture, I failed fixing it by myself; the main reason ...
NRagot's user avatar
  • 91
2 votes
0 answers
1k views

Unable to find debug symbols for Ubuntu 18.04 Kernel 5.4.13

I am trying to get the debug symbols for Ubuntu 18.04 bionic, kernel 5.4.13. I followed the below steps: uname -r # 5.4.13 uname -v # #1 SMP Sun Jan 26 17:18:26 UTC 2020 ...
ubuntuuser's user avatar
1 vote
1 answer
796 views

Is Ubuntu LTS running a DEBUG kernel?

I found this in my system log: [ 14.845195] ********************************************************** [ 14.845196] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 14.845196] ** ...
Bram's user avatar
  • 2,429
2 votes
1 answer
1k views

dynamic debug permission issue (k5.0.0)

When I attempt to read or modify the kernel dynamic_debug settings, I encounter a permissions issue. root@roberto:/sys/kernel/debug/dynamic_debug# cat control cat: control: Operation not permitted I'...
Chris Baker's user avatar
2 votes
0 answers
3k views

How to enable IPTABLES tracing on ubuntu 18.04 server

Ive found this simple straightforward way to trace what Iptables is doing on my kubernetes/calico cluster https://www.opsist.com/blog/2015/08/11/how-do-i-see-what-iptables-is-doing.html Nor ipt_LOG, ...
Alexandre Hadjinlian Guerra's user avatar
1 vote
0 answers
164 views

My session automatically closes when starting a certain type of App

I am new to Ubuntu. I just did an install of Ubuntu alongside Windows. Everything works perfectly except for one thing: Ubuntu crashes. It's not a regular event, but it happens when I open ...
Jay's user avatar
  • 11
5 votes
2 answers
834 views

Where are the debug symbols for plasmashell (Kubuntu 19.04)?

I'm having an issue with plasmashell crashing anytime I leave the computer alone for more than an hour or two. I've tried installing debugging symbols to generate a useful crash report, but keep ...
Jonathan Watts's user avatar
1 vote
0 answers
4k views

How to solve warnings from GDB?

I need help about debugging GIMP 2.10.10 O.S. Ubuntu 18.04.2 LTS GDB Version (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git I get this message from GDB when i try to generate a backtrace inside flatpak ...
Jorge Paralisis's user avatar
0 votes
0 answers
485 views

Reset debug/verbose mode logging in bash script

I use a cronjob as root to check via lsof if some remote machines have established an ssh tunnel to the main server (root, otherwise lsof and netstat won't show the username and sshd pid). Then for ...
Cris's user avatar
  • 1
2 votes
0 answers
1k views

Stop the "System program problem detected." pop-up without disabling error reporting

everytime I login on my computer, a pop-up appear containing: System program problem detected. And no further informations, I mean I don't have any clues on what's wrong I can just report it or ...
Ced's user avatar
  • 813
4 votes
0 answers
990 views

PlayOnLinux: Microsoft Office 2013 Please wait while the virtual drive is being created

I recently faced a bug while trying to install Microsoft Office 2013 though PlayOnLinux on Ubuntu 18.04. The installation did a kind of infinite loop during the following step: Please wait while ...
Ced's user avatar
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1 vote
2 answers
5k views

Ubuntu 18.04 on Acer Spin 5 with \EFI\BOOT\mmx64.efi not found

I attempted to reinstall Ubuntu 18.04.1 on my Acer Spin 5. Installation appeared to go fine, but then when I restarted: Failed to open \EFI\BOOT\mmx64.efi - Not Found Failed to load image \EFI\BOOT\...
Joshua Gander's user avatar
1 vote
2 answers
4k views

Slack 3.3.3 crash on Ubuntu 18.10

I have installed the latest Slack 3.3.3 from the official website. Downloaded the deb package, but when i start it, it simply crash and nothing happens. It was working fine on Ubuntu 18.04. Is there a ...
Dimitar's user avatar
  • 474
0 votes
0 answers
577 views

How to troubleshoot application crashes (find a minidump or stacktrace)

I just installed Ubuntu 18.04.1 on a server, and compiled Povray v3.8.0-alpha.9861167+av620. It works nicely with some test scenes, but it seems to have a memory leak when rendering my particular ...
Louis Somers's user avatar
6 votes
1 answer
1k views

Kernel custom building not working due to missing "binary-generic" recipe

I am on Ubuntu 18.04 and I am trying to build my own kernel by this guide and this guide. Unfortunately the command: AUTOBUILD=1 fakeroot debian/rules binary-headers binary-generic binary-perarch ...
Antonio Petricca's user avatar
2 votes
0 answers
3k views

How to have logs from a Lutris launched game?

I am trying to play fortnite with wine, but I have disconnection issues so I would like to have a closer look at what is happening. I have already tried to launch the launcher exe from the terminal ...
Pilou's user avatar
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