Month: July 2021

Qt6 QtCreator Crash After Install on Ubuntu 21.04

Robert Lohr1 Comment

Hopping Linux distributions, I came to Ubuntu 21.04, and one of the first things I do is install Qt manually. I have described the process in a previous blog post on Linux Mint, and it is the same for Ubuntu. Except for a tiny detail. On Ubuntu, the bundled QtCreator immediately crashes and triggers a "Send Diagnostic" dialog.

$ /opt/Qt/Tools/QtCreator/bin/qtcreator
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was 
found. This application failed to start because no Qt platform plugin could be 
initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, 
xcb.

The fix is simple.

sudo apt install libxcb-xinerama0

I hope this helps. Thank you for reading.

Customize Nautilus Default Bookmarks

Robert Lohr1 Comment

Nautilus is the default file manager in basically all Gnome-based distributions. I wonder why I cannot configure the default Bookmarks in the left panel through a context menu with that wide adoption. Is there no demand?

I managed to achieve my goal by editing two files. One is for the user, and the other one is a system file. I have not tried multiple user accounts, but I assume it affects everyone that uses the computer.

I wanted to remove "Desktop", "Public", "Templates", and "Video" because I never need that. What I ended up doing was to also change the location of "Documents", "Music", and "Pictures" to point to their respective OneDrive equivalents. That saves me from creating symbolic links, as I have explained in one of my OneDrive posts.

First, the user file.

vim ~/.config/user-dirs.dirs

#XDG_DESKTOP_DIR="$HOME/Desktop"
XDG_DOWNLOAD_DIR="$HOME/Downloads"
#XDG_TEMPLATES_DIR="$HOME/Templates"
#XDG_PUBLICSHARE_DIR="$HOME/Public"
XDG_DOCUMENTS_DIR="$HOME/OneDrive/Files"
XDG_MUSIC_DIR="$HOME/OneDrive/Music"
XDG_PICTURES_DIR="$HOME/OneDrive/Pictures"
#XDG_VIDEOS_DIR="$HOME/Videos"

Next, the system file. If you only remove entries from the user file, they will be added again the next time you log in. My tests showed that it is enough to customize the location in the user file. The other way around does not work, however.

sudo vim /etc/xdg/user-dirs.defaults

#DESKTOP=Desktop
DOWNLOAD=Downloads
#TEMPLATES=Templates
#PUBLICSHARE=Public
DOCUMENTS=Files
MUSIC=Music
PICTURES=Pictures
#VIDEOS=Videos
# Another alternative is:
#MUSIC=Documents/Music
#PICTURES=Documents/Pictures
#VIDEOS=Documents/Videos

Finally, you need to log out and log in again for this change to take effect.

I hope this helps. Thank you for reading.

OneDrive Sync On Linux Part 3, With abraunegg/onedrive As Daemon

Robert Lohr3 Comments

In a previous blog post, I showed another way of syncing OneDrive folders on Linux as an alternative to using RCLONE. It was the Open-Source project “onedrive” by Github user “abraunegg” (a fork of an abandoned project by user “skilion”). One thing I was having trouble with was the installation as a daemon. I used an @reboot crontab workaround to achieve my goal instead. However, I was not satisfied, so I went back to the documentation to see if I missed something. And miss I did. To my defense, other steps I had tried are omitting a necessary detail required to make it work.

I have mentioned the installation in the other post, but I also left out a thing or two that I came across. That is why I will include the setup process again, this time in more detail, and refer you to the other blog post for configuration tips. That is the part I will skip here.

My test system is the same Fedora 34 distribution, and I have also tested the steps on Pop!_OS, which means it should work on the other Ubuntu derivates.

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