Questions tagged [ubuntu]
Free, open-source operating system based on Debian GNU/Linux. Ubuntu questions are on topic here, but if you prefer an Ubuntu-only audience there is Ask Ubuntu (https://askubuntu.com/).
7,936
questions with no upvoted or accepted answers
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answer
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Sierra Wireless AirCard 313U (AT&T Momentum 4G) on Ubuntu Linux
I'm trying to get a Sierra Wireless AirCard 313U (more specifically, the AT&T Momentum 4G) working under Ubuntu Linux.
I've looked at a number of pages so far:
How to connect internet using AT&...
10
votes
1
answer
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How to tell what HDMI version my system supports - Ubuntu Linux (10.10)
Looking to see if the HDMI output of my machine (with an nVIDIA GeForce 460M card) is HDMI 1.3 compatible or not. Not sure what the command is to tell that.
Thanks in advance!
9
votes
0
answers
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jenkins:Broken AVD system path. Check your ANDROID_SDK_ROOT value
I have docker-image of jenkins.
Home directory of jenkins is: /var/jenkins_home wich mapped to /home/user
So, i install android-sdk wich mapped to:
/home/user/tools/android-sdk/
When i install ...
9
votes
1
answer
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wifi p2p between ubuntu 14.04 and android
I attempted to make a wifi p2p connection between Ubuntu 14.04(kernel 3.13) and Android 4.4 Kitkat(Samsung Galaxy Note 2)
In Ubuntu
I use wpa_supplicant v2.1 which is built in to Ubuntu 14.04(/sbin/...
9
votes
1
answer
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Is Xfce supposed to run slowly on Virtualbox?
I'm having problems getting Xfce systems on VirtualBox to run smoothly. What I mean by slow is that moving or resizing windows looks very "laggy" (basically just windows jumping from one ...
9
votes
2
answers
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Cannot make mobile broadband Vodafone USB connection Ubuntu 13.04
I have Ubuntu 13.04 and I bought yesterday a Vodafone USB stick for internet connection. I am located in Romania.
This is what I've did:
First Thing
Network Connections, added connection.
Selected ...
8
votes
0
answers
5k
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Slack app crashes Ubuntu desktop
I am using the Slack app on Ubuntu 22.04. I find that if I right click and paste the app stops running immediately. Otherwise, at random times I lose all USB input and the screen goes black for about ...
8
votes
0
answers
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Ubuntu unattended upgrades stops Docker
This is my current 50-unattended-upgrades file:
Unattended-Upgrade::Automatic-Reboot "false";
Unattended-Upgrade::Allowed-Origins {
"${distro_id}:${distro_codename}";
"${distro_id}:${...
8
votes
0
answers
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HTOP shows massive memory usage but proceslist shows otherwise
I'm running htop on my Ubuntu 16.04LTS server to monitor my CPU and RAM usage. I'm aware of the color indications used by htop as outlined below:
So, when I look at my htop-overview, it shows me the ...
8
votes
3
answers
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Google chrome logs out from every webpage after system user has logged out
So I've got a really annoying problem and Google Chrome isn't providing me any information on what's causing it.
Every time I log into my account I have to again, and again, and again log into every ...
8
votes
1
answer
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Samba execute permission is always set
I have a Ubuntu 14.04 server that exposes a samba share to Windows machine.
When I connect to the share and create files with notepad, permissions are respected and files don't become executable. ...
8
votes
1
answer
1k
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Keys interpreted by host computer (TeamViewer on Ubuntu)
What I want to do: I am trying to remotely control another Windows 8 x64 computer using the latest version of TeamViewer on Ubuntu 13.10 x64. I installed the latest 32-bit version DEB of TeamViewer ...
7
votes
0
answers
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netplan configuration not active -- ubuntu 18.04
trying to set up a fixed IP address on one of two NIC. I try using netplan. Not working at all.
Not an expert on this, I am out of my wits and ready to roll back to some other way (networkd). Maybe ...
7
votes
0
answers
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How to utilize all cores on high-end CPUs using ffmpeg
I have a high-end HPE ProLiant DL325 G10 server with an AMD EPYC 7401P 24-core/48-thread CPU, 128GB DDR4 RAM, and a Intel P4800x PCIe NVMe. I tried to run ffmpeg to convert a video (MKV) to MP4 for ...
7
votes
0
answers
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Debian/Ubuntu preseed generator?
All of these questions are related to the preseed support in the Debian
Installer: https://wiki.debian.org/DebianInstaller/Preseed
Is there a means, perhaps a .ubeb Debian-Installer extension, by ...
7
votes
0
answers
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How to increase the scrolling speed in Google Chrome without using a plugin on Ubuntu?
I am using Google Chrome on Ubuntu but Ubuntu does not provide any setting for setting the scrolling speed. I know there is a plugin for solving this, Chromium Wheel Smooth Scroller. However, its ...
7
votes
1
answer
3k
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Best way to share guest folder with host computer
I am running a Ubuntu VM on my MacOS X (host) using VMWare Fusion. I have found a lot of information about sharing the host partition with the guest VM but not much on sharing the guest folder/...
7
votes
1
answer
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locked Ubuntu screen - apps do not detect locked status
I use Ubuntu 12.10 (happens also in 14.04) but I did not really like Unity GUI because of performance issues and total inability to easily customize launcher. So I switched to Xubuntu, which is much ...
6
votes
3
answers
2k
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All video players (including browsers) fail to play any videos until reboot [Ubuntu 20.04]
After some uptime (quite randomly, it can happen after 2 days or an hour), videos on my computer start to freeze. There's no error messages, any video playback just stops like its on pause, though you ...
6
votes
0
answers
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Telnet connect to localhost failed on windows subsystem WSL2 Ubuntu
I'm using Windows Subsystem (WSL2) Ubuntu 20.04, trying to run command telnet localhost 2181, but only got error message saying
telnet: Unable to connect to remote host: Connection refused
Tried the ...
6
votes
0
answers
3k
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How to debug tick_sched_timer high power usage?
My tick_sched_timer is using a lot of power, this is the output of powertop:
The battery reports a discharge rate of 24.7 W
The power consumed was 516 J
The estimated remaining time is 3 ...
6
votes
0
answers
912
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Want unchanged HDMI output when lid closed (Linux)
My question is similar to a couple of other questions except I need a Linux/Ubuntu solution.
When I plug a HDMI cable into my laptop, I automatically get a second desktop on the second screen. This ...
6
votes
0
answers
517
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Removing stale xrandr entries
I recently switched video cards under Kubuntu 16.04.1 LTS and the xrandr command has cached many of the old settings.
$ xrandr | grep "connected"
DVI-D-0 disconnected (normal left inverted right x ...
6
votes
1
answer
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Can't scroll back after cat with mosh, tmux and iterm2 setup
My setup is the following: https://filippo.io/my-remote-shell-session-setup
When I do apt-get update on my server I can see all the output and am also able to scroll back as I expect. When I do cat ...
6
votes
1
answer
5k
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Differences in nc (netcat) options on Ubuntu vs RedHat
nc -q -1 local host ${PORT} ${CMD}
In Ubuntu, nc may be used as above, with the -q option. See manpage.
-q after EOF on stdin, wait the specified number of seconds and then quit. If seconds is ...
6
votes
0
answers
593
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arrow keys not working in Java application when using xmodmap
I've defined my keyboard mapping using xmodmap and it works beautifully with my browser and the rest of my software except java applications.
I tried switching the AWT_TOOLKIT to Mtoolkit instead but ...
6
votes
1
answer
1k
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Is shred single pass less secure than srm?
i compared shred -n 1 -v --random-source=/dev/zero file.txt and srm -llvzd file.txt on 16gb file on hdd. ubuntu 14.04. both commands do single pass with zeros.
'srm' needed more than whole night ...
6
votes
1
answer
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bash autocompletion is slow, freezing my desktop
sometimes when working with a custom kernel, pressing tab in the bash autocompletes at a horrible pace. It freezes the whole desktop. Then comes back after awhile.
This is the only quirk that I've ...
5
votes
0
answers
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GPG Error on APT-GET docker container (Ubuntu 22.04)
I am trying to just apt-get update on a ubuntu:22.04 docker container. On my local machine, when I spin up a new ubuntu:22.04 docker container and run apt-get update, no error occurs. However, on my ...
5
votes
2
answers
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Ubuntu VM hangs in VirtualBox under Window 10: "watchdog BUG: soft lockup - CPU#0 stuck for 23s"
This is Windows 10 with VirtualBox installed and Ubuntu virtual machine with Apache server.
Often CPU hangs on the Ubuntu virtual machine, taking up to 50% host CPU usage with no response at all, when ...
5
votes
2
answers
6k
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Trying to ssh into IPv6 address, getting "no route to host"
I have a home computer that uses Ubuntu 22.04, that I'd likely to remotely SSH into, from the internet. I'm trying to do this through its public IPv6 address. The address doesn't begin with fe80::, so ...
5
votes
0
answers
303
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Ctrl+F (find) is not working as expected on certain websites in Firefox
I'm (now) using Firefox 89.0 (64-bit) for Ubuntu, but this issue has existed for a long time when using Firefox on Ubuntu.
I'm having an issue with Ctrl+F (the find feature) in Firefox. Mostly it ...
5
votes
0
answers
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GRUB boot detection failed
I updated my image to ubuntu 20.04 from 16.04 and as a part of it upgraded grub to grub2. From the syslog, I am observing the following errors:
Oct 19 10:30:10 host-1 systemd[1]: Starting GRUB failed ...
5
votes
0
answers
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How to disable Ctrl+Shift+U in Ubuntu 20.04?
ctrl+shift+u is a change case, to set lowercase, but it conflicts with annother command, that produces a underlined ''u'', which produces an emoji when combined with a number.
It annoyed me so much ...
5
votes
1
answer
2k
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How can I emulate Ubuntu 18.04 on MacOS using qemu?
How can I run Ubuntu 18.04 on my MacBook Air (Mojave) using QEMU? (yes I have to use QEMU for now.) I got QEMU from here. But also got it from Homebrew as well.
I've tried looking at the QEMU's ...
5
votes
1
answer
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views
Install Python 3.7.3 from source with SSL failed
I am having troubles installing Python 3.7.3 with SSL.
All my compilations are successful, but the final install of module _ssl is failed.
Step 1: Install OpenSSL:
git clone https://github.com/openssl/...
5
votes
0
answers
4k
views
xrandr doesn't detect HDMI monitor
My second monitor has suddenly stopped working after a reboot.
I'm on Ubuntu 18.04 with an OpenBox desktop and an nVidia 1060, using the nVidia 396 driver. I've been fiddling with my display settings ...
5
votes
0
answers
2k
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How to get dhclient and/or NetworkManager to remove old client lease files?
My company produces IoT devices attached via USB, which contain a cell modem module, which contains a DHCP server. We have a production testing server running Ubuntu 14.04 and another server running ...
5
votes
0
answers
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KDE 5 panel doesn't show pager widget although I've added it (twice)
I've clicked Add Widgets in the panel context menu, and the "pager" widget there shows the number "2" in the corner (it was 1 before). Which I think means the number of pagers I have. But there is a ...
5
votes
1
answer
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VNC from MacOS screen sharing to linux Ubuntu
I’m trying to screen share from a MacBook to a VM running Ubuntu on Parallels on a MacBook Pro on the same network. I can ssh to it fine, but using the same account and IP address in MacOS screen ...
5
votes
0
answers
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git difftool doesn't open meld
I have the below in my .gitconfig. For some reason git difftool doesn't open up meld. It only works with meld. I'm using Ubuntu.
How can I fix it so that meld is opened?
[diff]
tool = meld [...
5
votes
2
answers
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Windows 10 fail to boot with 0xc0000001 error code
Introduction
Hello, I'm running multiboot installation on machine with UEFI. I have Windows 10 and Ubuntu installed, managed by Grub at startup and I have laptop working like this for about half a ...
5
votes
1
answer
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Reset android studio appearance settings to default
Suddenly the UI texts of Android studio became bold (maybe after an inappropriate shutdown). I didn't change font settings for android studio appearance myself. This is how it looks like:
Before:
...
5
votes
0
answers
791
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Ubuntu Trickle Will Not Open Chrome
I'm trying to open Chrome with trickle to throttle the upload speed so I can test a sites image uploading progress display, but the build in dev tools for chrome only allow throttling for downloads. ...
5
votes
0
answers
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virtualbox windows 10 guest stuck at low resolution on ubuntu host
I am running Ubuntu 14.04 as a host and Windows 10 as a guest in Virtual Box. I used Windows 8.1 as the operating system type when I set up the box. Windows 10 runs fine. I was able to install Guest ...
5
votes
2
answers
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Ubuntu 14.04 hangs intermittently under Hyper-V
I have Ubuntu Server 14.04.1 LTS running in a Hyper-V virtual machine on a Windows 2012 R2 host.
After running for some time, the Ubuntu server seems to freeze up (at least partially). A website it'...
5
votes
0
answers
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Pidgin auto-reconnect
Using Pidgin 2.10.6 (libpurple 2.10.6) 4cfe697ea3ae39a4fb3dad8e3ed1c70855901095
On Ubuntu 12.10 (yes I know this is out of support)
From time to time Pidgin will disconnect from a network. This ...
5
votes
1
answer
619
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Can I configure GNOME 3 to move a window to it's own workspace when maximized?
I'm using GNOME Shell 3.10 and would like to have each maximized window moved to its own workspace automatically. Ideally I'd also like GNOME to prevent any workspace from having more than one ...
5
votes
0
answers
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How to change 'timeout' of the UEFI boot manager from Windows 8?
How can I change the 'timeout' setting of the EFI boot manager from within Windows 8? I am trying to dual-boot Windows 8 and Ubuntu and I would like to be able to choose one or the other OS at boot ...
5
votes
0
answers
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Is it possible to run Corona SDK on ReactOS or Wine?
I dumped Windows, I'm now using Xubuntu. Is it possible to run Corona SDK on Wine? On Corona forums, they say no, but I wounder how this guy did it? Is ZeroBrane a solution?
What about ReactOS (or ...