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51 votes
1 answer
7k views

Playing iPhone (iOS10) music in Rhythmbox on Ubuntu 14.04

I have been using Rhythmbox on Ubuntu 14.04 to play music from my iPhone for a while now. Sometimes I get the annoying "initialize your iPhone" dialog box, but I just cancel it, unmount and reconnect ...
  • 801
28 votes
2 answers
3k views

systemd-journald crashed with SIGABRT in pthread_sigmask()

Fresh install of Ubuntu 18.04 on a new Lenovo x1c6, I'm getting this error sometimes after resuming from suspend. I have no idea what it means, and search online leads to a bug report that doesn't ...
24 votes
1 answer
35k views

Failed to start Snappy Daemon

Tried restarting my computer and while it's booting Ubuntu 18.04, it gets hung up after: [FAILED] Failed to start Snappy daemon, See 'systemct1 status snapd.service' for details,
  • 241
21 votes
2 answers
3k views

Window manager warning: Overwriting existing binding of keysym XXX with keysym XXX (keycode XX)

I performed a fresh install of Ubuntu 18.04 LTS on my desktop that I've been using Ubuntu on since Ubuntu 11.04. As I'm setting everything back up and installing all of the 3rd party software I ...
  • 321
21 votes
4 answers
6k views

Libre office font spacing (kerning) issue

On every operating system whenever I install LibreOffice it always seems to have an issue with properly spacing characters. Here are some examples: The first word is the exact same word in the same ...
  • 1,167
21 votes
3 answers
4k views

Get binary delta-encoded recursive diff of two directories as single patch file in CLI (and online use)

Essentially, I am looking for a GNU/Linux tool, that could recursively iterate through two directories, find file changes/additions/deletions; and for all changed files, output a diff. This can ...
  • 2,948
20 votes
2 answers
6k views

Does Wayland have an equivalent of xrandr for changing brightness and color temperature?

xrandr can be used to change the display brightness using the command line. For example, xrandr --output VGA-1 --brightness 0.4 Wayland does not support xrandr. Is there any similar tool in Wayland ...
20 votes
4 answers
6k views

Ubuntu 20.04 LTS: Screen freezes after login when waking laptop up from suspend

I have got a new Entroware Apollo with Ubuntu 20.04 pre-installed. I have had an occasional but not infrequent issue of my computer screen freezing after login when it is woken up but have no issues ...
20 votes
2 answers
4k views

CRITICAL: Unable to create a DBus proxy for GnomeScreensaver

I received this critical error in my logs, but I haven't had any problems so far. If anyone knows why I get this error and what it means, I'd really appreciate an answer from you. CRITICAL: ...
17 votes
1 answer
6k views

List and remove unofficially installed CA certificates

This article expose how around 18% of HTTPS connections are being detected as intercepted by MITM proxies. As the great related paper states: To circumvent this validation, local software injects a ...
17 votes
1 answer
1k views

How to disable mouse interference with Alt+Tab?

I want to be able to use Alt+Tab or Alt+` to switch back to a previous window AND at the same time start moving the mouse to where I will be clicking, without it all switching to the wrong window just ...
  • 271
17 votes
3 answers
983 views

How can I automatically hibernate cloud storage servers?

I have cloud storage data centers running Ubuntu 16.04 LTS and NextCloud/OwnCloud that have no need to be available 24/7 and need power management solutions. Servers are Dell PowerEdge 1950 Gen II and ...
  • 375
17 votes
4 answers
6k views

Ubuntu 15.10 randomly crashing back to login screen

fresh install of Ubuntu 15.10 here. Everything works fine, but I'm getting random crashes back to the login screen. I pasted my syslog here: http://paste.ubuntu.com/12989589/ Edit: Confirmed bug on ...
  • 170
16 votes
0 answers
16k views

How to List Installed Packages Using Snap

I'd like to get a list of packages installed manually by snap and be able to find out whether a foobar package was installed manually by system installer. For example: $ snap list Name ...
  • 315
16 votes
3 answers
9k views

text highlighting (select to copy) stopped working in the terminal

I have a weird effect in one workstation: suddenly, the system does not allow me to copy text from a terminal to paste it somewhere else by simpling selecting it. I can still paste into the terminal ...
  • 161
16 votes
1 answer
6k views

Gradle or Android Studio freezes Ubuntu

I've got a problem with my Android Studio/Gradle regularly freezing my entire system. What happens? I work on my Android Studio and at first, everything is ok. For approx 5 - 10 builds/deploys ...
  • 261
16 votes
3 answers
2k views

No HDMI video after suspend on Intel NUC6i7KYK

I have the latest Intel NUC, NUC6i7KYK (specs here), running close to stock Ubuntu 16.04. Its monitor is hooked up via HDMI. When it wakes up from suspend (S3), it never wakes up the display. The ...
  • 1,207
16 votes
2 answers
13k views

How do I configure spice with KVM?

I'm trying to install and configure spice. However, I cannot find a source on how to do this.
16 votes
3 answers
3k views

Why ISO master (editor) does not read Windows images

I have the followjng problem with ISO master software: I try to edit WIndows 7 ISO image $ isomaster windows7.iso The file does open, unfortunately all I get is README with message: This disc ...
15 votes
2 answers
3k views

How to disable mouse scrolltabs ubuntu chrome

When I hover on tabs in chrome and scroll the mouse wheel, the tabs are changing focus. This feature is really annoying for me and i want to turn it off. Any ideas? P.S. The way I usually close an ...
15 votes
4 answers
16k views

Enable Dolby 5.1 or at least subwoofer on Acer laptop?

I have Dolby Virtual Surround Sound 5.1 speakers with Tuba CineBass Subwoofer on Acer laptop (mine is 5951G but there is also bunch of models with similar configuration of speakers with/without ...
15 votes
2 answers
14k views

Access terminal from login screen on Ubuntu 18.04

I would like to open the terminal from the login screen. In previous Ubuntu releases I just used Ctrl+Alt+F1. However, when I press Ctrl+Alt+F1 in 18.04, nothing happens, the login screen just stays ...
  • 466
14 votes
1 answer
5k views

No microphone in Ubuntu 18.04 on HP elitebook

I installed Ubuntu 18.04 on my new HP elitebook 850 G6 after erasing windows. I could not get audio input part working though.. Fn F8 key is orange all the time and this is how settings looks like. I ...
  • 240
14 votes
1 answer
3k views

Configure Xorg to work from integrated GPU

I am using Ubuntu 14.04LTS, with an Intel CPU + integrated graphics, with a GTX650 GPU. I asked this question on SO but they said it was offtopic. I want to use my GPU for debugging CUDA code and for ...
  • 251
13 votes
1 answer
3k views

Ubuntu 18.04 -> 20.04 alt-tab gets slow / laggy after a while

I recently updated to 20.04 LTS from 18.04 LTS. When my system is up for like a day, alt-tab starts to lag. Not the window switcher panel, but when I select the window I want and release keys, it ...
  • 596
13 votes
3 answers
3k views

Enable Sticky Edges Ubuntu 20.04

I recently upgraded to Ubuntu 20.04 and i can't find any way to enable Sticky Edges, what i want is for the cursor to briefly stop on the edge before crossing over to the second monitor i don't know ...
13 votes
1 answer
2k views

How to set default browser on Ubuntu Touch?

I want to set Firefox as the default browser on Ubuntu Touch so that links in Dekko, RSS reader, etc. open in Firefox instead of the Ubuntu touch browser. I can't find a "default browser" setting in ...
13 votes
5 answers
4k views

Problem with USB mouse in Ubuntu 16.04

Since I have Ubuntu 16.04 have not had any problems with the PS2 mouse, but a week ago I placed a new mouse USB. This mouse freezes randomly (Sometimes while I am using the PC and sometimes this ...
  • 141
13 votes
2 answers
2k views

Disable automatic brightness according to content in Ubuntu 14.04

I am running Ubuntu 14.04 LTS on a Dell Latitude E3440 laptop. My problem is that screen brightness automatically changes depending on content. This means that the screen gets brighter when the ...
13 votes
0 answers
478 views

Shutter very slow and laggy?

Shutter is very slow and laggy and I'm not sure why. I've tried to change settings to "Do not save file automatically" and "Do not copy anything to clipboard" but it's still incredibly slow. I have it ...
13 votes
1 answer
577 views

Prevent light-locker from setting volume to 100%

I'm on 14.04 with XFCE. When I lock the screen it appears to mute the system volume (or perhaps just mute anything from the locked session?). When I log back in the volume is reset to 100%. This ...
13 votes
4 answers
3k views

Evince ignores page margins when printing

I'd like to print a PDF with custom page margin settings. So I opened the PDF with Evince (standard document viewer) and added a new page size in the print dialog: It has a bigger margin on the ...
  • 141
13 votes
2 answers
6k views

Error during mysql-server installation

I was trying re-installing mysql-server, but I am getting some sort of warning during installation. It got installed but it's not working. Setting up mysql-client-core-5.7 (5.7.23-0ubuntu0.18.04.1) .....
13 votes
2 answers
2k views

Can't use bluetooth audio device despite Pulseaudio modules loaded and device connected

I already spent hours and hours to get my bluetooth audio device running. System: Ubuntu 16.04 LTS Xenial, all updates installed, running on a Lenovo Y50 Notebook Device: Bluetooth receiver MR230, ...
  • 131
13 votes
1 answer
13k views

How do I configure a vnc server which supports xkeyboard extention?

I am logging into an Ubuntu 14.04 remote machine with a VNC server. I am using some Python IDE programs which use Qt, but while running them I am getting the error: Qt: XKEYBOARD extension not present ...
  • 131
12 votes
1 answer
426 views

How do I enable scrolling with a mouse in a TTY in Ubuntu?

When I use gpm with a mouse in a TTY (ctrl+alt+f1), it allows mouse movements with a blinking cursor and such but scrolling with my mouse wheel doesn't cause any visible changes. How do I enable ...
12 votes
0 answers
849 views

Adding a Plug or Interface to Existing Snap

I read through this, and it seems for a given snap (e.g. xournalpp), you can check it's snap connections, existing interfaces, etc with snap connections [snap_name] but is there no way of adding a ...
  • 1,246
12 votes
1 answer
305 views

Does Gnome3 have a method to filter desktop notifications?

Does Gnome3 have a method to filter desktop notifications based on notification content? If so, how? Desktop notifications are useful, and I know that it's possible to turn them off per-application. ...
12 votes
0 answers
7k views

"upowerd[4116]: unhandled action 'bind'" messages filling up syslog

On a laptop with Ubuntu 18.04, /var/log/syslog gets new block of the four following messages about 5 times per second: Aug 29 19:17:17 my_hostname systemd-udevd[336]: Process 'hid2hci --method=dell --...
12 votes
1 answer
11k views

rdesktop gives ERROR: Failed to open display:

I have a .bash_aliases file with several aliases which I use to connect to Windows machines. The aliases are set up like this: rdesktop -d domain -u username -p password -k fr-be -g 1920x1024 -T ...
  • 2,024
12 votes
1 answer
2k views

Slack flickering and Rendering issue

We have graphical glitches on slack client on our Ubuntu 16.04.3 LTS like screen flickering and rendering issues. We have tried to disable acceleration and to resize slack window but it does not work ...
12 votes
1 answer
4k views

USB-C to HDMI Cable issues in Ubuntu 16.10 and 17.04

I'm trying to use a USB-C to HDMI cable (not adapter) to connect to an external monitor with no luck. The display is detected, can be selected, and displays video but the video is not displayed ...
  • 131
12 votes
0 answers
2k views

pam_mount often unable to mount and hangs for minutes

I have some centrally managed Ubuntu workstations that authenticate users against Active Directory and mount user home folders on logon with pam_mount. This usually works as expected, but sometimes ...
  • 141
12 votes
2 answers
527 views

Get Windows Back After Waking Up On 16.04 LTS

On my dual-monitor setup some windows get off screen after the sleep (suspend) mode. I have to manually Alt+Space to move them back. How can this be accomplished automatically after the sleep?
12 votes
0 answers
917 views

Per-application xfwm theme

I want to run separate applications with different themes, the only solution for this that I could find was to use bash -c 'GTK2_RC_FILES=/path/to/gtkrc program'; however, I currently am using a XFCE4 ...
  • 395
12 votes
2 answers
1k views

How to display characters in (virtualbox) TTY?

I'm running Ubuntu 12.04 in VirtualBox, but can't get Chinese chars to display correctly. Here's what chars that should be Chinese look like: I've done everything I could, including: sudo apt-get -y ...
  • 221
12 votes
2 answers
14k views

Getting openconnect vpn to work through network-manager

This is the same issue as here: Getting openconnect vpn to work through gui , but my additions to it were deleted and I was asked to create a new question. In fact, there are a number of folks asking ...
  • 121
12 votes
0 answers
9k views

Unable to find an initial ram disk that I know how to handle

After upgrading to the next linux image, aptitude has outputted the following lines: Setting up linux-image-3.16.0-38-generic (3.16.0-38.52~14.04.1) ... Running depmod. update-initramfs: deferring ...
  • 711
12 votes
1 answer
683 views

How do I use non-regular variant of a font in Ubuntu?

How do I use non-regular variant of a font in Ubuntu? Simply stating, I was trying to use light variant of a font. However, I couldn't. Every time I select those light variant, Ubuntu reluctantly ...
  • 74.1k
12 votes
2 answers
2k views

How to resolve my "loading icons" in compizconfig while loading Ubuntu 14.04 on Virtualbox?

I'm running through the post about unity-doesnt-load-no-launcher-no-dash-appears to get my 14.04.1 loaded on VirtualBox. I've gotten to the step where I run ccsm, but it hangs at "Loading Icons...", ...
  • 121

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