Questions tagged [troubleshooting]

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Trouble reinstalling Ubuntu 16.04

I reached a point with my trouble shooting in Ubuntu that I decided my time be better spent re-setting up ubuntu than trying to solve whatever was wrong with it. I downloaded 16.04 on a live USB and ...
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14 views

16.04 Ubuntu terminal not working

I believe that my issue has to do with me installing python 3. I currently cannot access my main terminal and have been trying to do commands in the xterm. I have tried the following commands and ...
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21 views

Ubuntu is lagging even on decent enough hardware

I dual boot Ubuntu 20.04 and Windows 10 on my new laptop which I bought just a month ago. Windows 10 works perfectly fine with no lag at all but when I boot into Ubuntu, I have faced several issues ...
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18 views

Ubuntu 18.04 monitor issues

My monitor has two issues which I was once able to sort out by simply rebooting my system, though that is no longer the case. Last time it took over a month to get my computer running properly as I ...
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20 views

Every game is glitchy

I honestly have no I idea what to do. Every game I open is very glitchy, I think its screen tearing but every guide I followed did not work. Specs\ Memory 5.7 GiB Processor AMD® Ryzen 3 3200u with ...
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1answer
402 views

PuTTY: unable to load font in ubuntu 20.04

I have installed PuTTY on ubuntu 20.04 LTS . But after entering IP address and clicking on Open button ,Putty gets closed automatically. The error message is PuTTY: unable to load font "server:...
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29 views

file icones all turned grey

For some reasons all icons and file turned grey. also terminal page has become white and so on. what is the reason and how can i fix it?
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0answers
35 views

Sudo stopped working after a failed dependency update

Sudo stopped working after I have tried to update a dependency from libc6XXXX to libc6YYYY, required by an experimental text editor. On the first try, it didn't work and apt-get suggested me to use ...
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44 views

How do I purge disk IO on a defective drive

So I think one of my drives is defective. My problem is that when I tried to mount it and read from it the operations failed and now I can't get programs like caja and dolphin to work because of ...
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2answers
623 views

Understanding: “error while loading shared libraries: libicui18n.so.63”

In this specific situation I'm trying to install the latest version of SecureCRT (made by VanDyke). I get this type of issue every time I update to a new release of Ubuntu. That said, I've seen this ...
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1answer
61 views

ufw NO ipv6 after enabling firewall - Essential Rules

There is a loss of ipv6 connectivity as soon as I enable ufw I am behind a 6router using dhcpv6 and need global connectivity. It uses 6to4 to acquire its 6ip. I DONT want to allow IN/OUT ALL from ...
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43 views

All system text is covered by white boxes

Pretty much the title. I was normally using Ubuntu the other day and I tried to launch Firefox. It gave me a crash report which I closed, and then it refused to launch. I then restarted my computer ...
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1answer
52 views

Laptop with Ubuntu not turning on after mok managment screen appeared

So I recently installed Ubuntu into a Lenovo yoga 520 because I started learning Linux, everything was okay for a few days, but then a mok management screen showed up (I never seen this screen before)....
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2answers
356 views

How do I troubleshoot a slow boot?

I'm getting very slow boot, can't find out the exact reason but on dmesg exec it shows apparmor profile loading are eating most of the times. I'm not sure its really making it or something else are ...
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24 views

Ubuntu wake-up fails, if on battery power (but it's OK on AC)

My Ubuntu 18.04 suspends flawlessly as long as I'm connected to the AC power. If I wake-up from the battery, it might fail, about 1/6 times don't work. The battery is new-ish, and I don't assume it ...
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1answer
162 views

internal microphone not showing up on Lenovo Yoga S740-14IIL (18.04)

I followed the advice options here: Internal microphone not working pavucontrol settings tail /etc/modprobe.d/alsa-base.conf options snd-cmipci mpu_port=0x330 fm_port=0x388 # Keep snd-pcsp from ...
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81 views

Wifi stopped working after ubuntu update

i am running Ubuntu 18.04.4 LTS for quite a time on my HP pavilion au111tx , recently some update came which looked like a regular update which i installed and after restarting iam facing wifi issues....
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2answers
3k views

Trouble: No space left on device

I run into serious problem this morning. I remotely connect to my Ubuntu desktop in the lab via Teamviewer to finish training a machine learning model and present some results to my supervisor in the ...
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1answer
136 views

Unexpected Rebooting of Ubuntu [duplicate]

An unscheduled system reboot occurred on an Ubuntu environment and the only access you have to this system is via Remote Terminal. • What are some of things you would look at to determine the root ...
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1answer
276 views

Ubuntu blank screen after software update 18.04

I originally had a stretched screen so I updated Nvidia drivers and a system update as well. Then I rebooted and I just got a black screen. Following what what was said from years ago I pressed ‘e’ ...
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64 views

Kubuntu freezes at KDE Plasma logo splash screen

I tried to create a global rule through the system settings GUI to force all windows to open at the center of the screen at 1440x810 (1920x1080 monitor). Ignored the warning pop-up like the dumb noob ...
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2answers
517 views

NTFS partition can't be mounted in either Windows or Ubuntu

A few days ago I decided to backup important files and pictures from my old laptop. After failing to boot Windows several times, I decided to transfer the pictures using an Ubuntu live USB, because ...
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83 views

Surface Pro 3 Type Cover not working ubuntu 19.10

I recently found my old Surface Pro 3 and I wanted to put Ubuntu on it. Ubuntu runs without issue, but the Type Cover isn't being detected. The Type Cover lights up, but nothing happens when I type on ...
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36 views

GRUB not available on boot

I've spent the day trying to install Ubuntu, but there are a number of issues. First, the background - I'm using an Acer E15 Aspire laptop. It has two drives built in - a 250gb SSD and a 1TB HDD. I ...
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1answer
1k views

SSH Issue with Ubuntu 19.10 client and server?

first post in this community! I'm having a couple issues with SSH on a newly installed Ubuntu 19.10 desktop: When SSHing to this machine on my local network I occasionally have hangs in ...
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253 views

Trouble connecting to wifi with RTL8822BE

Both on 18.04 and 19.10 (just installed the latter) I'm having trouble connecting to wifi with this chip. After a reboot it takes me a few attempts to get a connection such as turning on airplane mode ...
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143 views

KGPG will not start after first install

I installed and exported my keys into KGPG yesterday. Since I unpinned it to the start menu it will not start. Have tried removing the package and reinstalling it multiple times. Also have tried ...
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1answer
241 views

Installing Ubuntu on Dell Inspiron 5585

I've been struggling getting Ubuntu on my laptop for a few days now. When I load up the install disk it flashes "error file /boot/ not found" then shows me the boot options (Try Ubuntu or Install). ...
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2answers
7k views

phpmyadmin has no installation candidate

I have updated and add repositories to sourcelist , but still doesn't work. cyan@cyanonvo:~$ sudo apt install phpmyadmin [sudo] password for cyan: Reading package lists... Done Building dependency ...
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1answer
353 views

TroubleShooting, SimpleScreenRecorder Error: Can't write header!

When I want to make a video, I prefer to use a Uncompressed method but it seems to fail. I'm on Ubuntu 18.04.3 LTS Here is what I'm using: ogg container H.264 Video Codec Constant rate factor of 0 ...
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1answer
303 views

19.10 hangs for a few seconds every minute or so

System just hangs (freezes) for a few seconds. Mouse cursor does not move, and display does not update. keyboard buffer fills though. Then things are fine again for a minute Top does not show ...
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172 views

Trouble Installing Ubuntu (AMD)

I've been trying to install Ubuntu 19.10 and 19.04 but neither of those have worked. I have used both GPT and MBR on both flash drives for both versions. I have also tried both UEFI and Legacy boot ...
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1answer
2k views

Unable to run EAGLE 9.5.1 on Ubuntu 18.04

I'm on Ubuntu 18.04. I'm trying to install EAGLE as instructed here. I've downloaded and unzipped the package and placed it in my home directory. In the eagle folder, I run ./eagle run and got the ...
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2answers
83 views

Problem running ubuntu alongside windows 10

Yesterday I installed Ubuntu onto my 2nd drive(the main drive has W10 on it) but there is no way for me to boot it from it. I tried changing the boot order but that didn't work then i tried unplugging ...
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1answer
154 views

help troubleshooting high cpu

I'm looking for some advice on how to troubleshoot a Dell E6400 running xubuntu 18.04. For some weeks I've run into high CPU in certain circumstances. After watching video for around 5 minutes (in ...
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1answer
144 views

Ubuntu not accepting my arduino

I am relatively new to ubuntu, and have been enjoying it. I currently have this issue. I get the error message shown below. It detects my Arduino Mega 2560, but it instead decides to give these error ...
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1answer
2k views

Keyboard and touchpad freeze after suspend

I run Ubuntu 19.04 on a VAIO VJF153F11X and have one single issue ever since I started using Linux: everytime the system returns from suspend, either built in keyboard and touchpad won't work until I ...
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1answer
113 views

Can't connect to wireless on 16.04

I am not able to connect to wifi on my Ubuntu 16.04 When I run the command: sudo lshw -C network This gives me the output: *-network description: Ethernet interface product: ...
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1answer
59 views

how are modules assigned? and how would you troubleshoot modules?

recently, I had a problem with my wifi addapter, where the solution was to blacklist ideapad_laptop in the file /etc/modprobe.d/blacklist.conf. That got me wondering how the modules are assinged. My ...
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1answer
324 views

Need expert advice.Keyboard pressing multiple characters for a single key stroke

When I try to type a single character it prints multiple characters . For example If I try to type Hello it will show as Hhhhhelloooo. I am using a desktop with intel core i3 processor. Initially I ...
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65 views

Filesystem sometimes gets corrupted

I have installation of Ubuntu 18.04 64 bit on my laptop. Now this is second time that my filesystem got corrupted. System boots into initramfs command line and I have to run fsck on the Ubuntu ...
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1answer
1k views

Wine apps crashed after update

Today after I logged in, I got a message to update Line. I clicked OK and it seemed to start updating, but after a while, it crashed. I tried to remove Wine and Winetricks, and reinstall them to no ...
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3answers
2k views

18.04 and Brother MFC-7420 USB printer - doesn't print

I did setup my printer successfully on 10.04, 12.04, 14.04 and 16.04, there were various troubles, but I still could manage to resolve it in the end. It's 18.04 (64 bit, after upgrading from 16.04 64 ...
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0answers
607 views

Purple screen when booting Ubuntu 18.04 after grub edition

I have a dual boot system with Ubuntu 17.10 and Windows 10 that's been working perfectly. Yesterday, I updated my system from Ubuntu 17.10 to Ubuntu 18.04. The process went ok and I had no problems ...
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1answer
118 views

My system is slow. What commands can I use to help determine what the problem is?

My system is considerably slow and I have no idea why and no idea what information I can provide to help determine the cause. What basic trouble shooting can I do to obtain and provide useful ...
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0answers
85 views

Not starting up [duplicate]

Every time I try to open Ubuntu I get this message [ 0.000000] [Firmware Bug]: TSC_DEADLINE disabled due ro Errata; please update to microcode to version: 0x22 (or later) Then I restarted my PC ...
2
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1answer
626 views

Ubuntu 16.04 SMPlayer theme problem

I try to change SMPlayer theme but nothing happens. I installed via official PPA. I installed SMPlayer another Ubuntu machine too but still cant change theme. Is there a dependency for Ubuntu or ...
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2answers
5k views

The program Anki won't start

Here is the output: Traceback (most recent call last): File "/usr/bin/anki", line 6, in <module> import aqt File "/usr/share/anki/aqt/__init__.py", line 4, in <module> from anki import ...
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1answer
57 views

Ubuntu freeze up after a while

I've installed Ubuntu Bionic Beaver like 70 minutes ago, but I'm having a problem I've never had before, after some minutes of using, the system simply freezes, nothing works at all. I've tested and ...
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3answers
9k views

How do I know if WINE is installed? [duplicate]

The store says WINE is installed, but I don't see it in my apps, or an option to use WINE to open a .exe file.