Category Archives: GNU/Linux

Debian, Free and Open Source software, Arduino

How to set up default browser in LXQt?

Click the application menu icon at the left bottom corner. Click the submenus in following order. Preferences > LXQt Settings > Session Settings Click Environment (Advanced) menu Set BROWSER variable to brave-browser (the execute file of Brave browser in my … Continue reading

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How to turn off desktop switching by Alt + mouse wheel

I’m running LXQt Desktop Environment. And I use openbox as the window manager. I ran into a problem. When I press Alt key and turning mouse wheel in Blender to execute a function of an addon, Alt + mouse wheel … Continue reading

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APC UPS

Source: https://wiki.archlinux.org/title/APC_UPS The APC UPS can communicate with the Linux system through either a RS-232 or USB serial connection. Debian packages: apcupsd – APC UPS Power Management (daemon)apcupsd-cgi – APC UPS Power Management (web interface)

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Android mail app for mail.riseup.net server

https://riseup.net/en/email/clients/k9

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Unable to locate theme engine in module_path: “pixmap”

Gimp complains about missing pixmap as below. (file-jpeg:2725): Gtk-WARNING **: 18:02:52.746: Unable to locate theme engine in module_path: “pixmap”, Install gtk2-engines-pixbuf package.

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Install Telegram Desktop Version 3.1.1

Telegram Desktop in stable repository of Devuan is outdated. Add backports repository in /etc/apt/sources.list deb http://deb.devuan.org/merged chimaera-backports main contrib non-freedeb-src http://deb.devuan.org/merged chimaera-backports main contrib non-free $ sudo apt install -t chimaera-backports telegram-desktop

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How to remove downloaded package files of APT

Debian package management system stores downloaded package files on /var/cache/apt directory. To remove all the package files, run the following commands.

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Install Libreoffice Writer from backports repository

Add the backports repositories in /etc/apt/sources.list deb http://deb.devuan.org/merged chimaera-backports main contrib non-freedeb-src http://deb.devuan.org/merged chimaera-backports main contrib non-free $ sudo apt install -t chimaera-backports libreoffice-writer

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How to setup Libreoffice Writer to use Korean

It needs to install libreoffice-gnome package to use Korean. Set the environment variables for IM program. Here I use uim as IM program in Xorg.   My .xinitrc file is as below. IM=’uim’export GTK_IM_MODULE=$IMexport XMODIFIERS=’@im=$IM’export QT_IM_MODULE=$IMexport XIM=$IM exec startxfce4

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How to remove the site redirection exploitation in Brave browser?

Brave version I’m using is 1.26.67 Chromium: 91.0.4472.114. Cleaning the cache and cookies does not remove the site redirection exploitation code once it’s installed. You need to wipe out all files in Brave folder. In Devuan Linux, the fold is … Continue reading

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