My quick notes

Got the keyboard and pretty happy with it, except one thing: capslock/numlock led doesn’t light up in wireless mode, although their functions work fine. In USB mode, the leds light up normally.

• Update Fedora 36:

  sudo dnf upgrade --refresh
  

• Reboot.

• Install dnf-plugin-system-upgrade if not installed:

  sudo dnf install dnf-plugin-system-upgrade
  

• Download Fedora 37 packages:

  sudo dnf system-upgrade download --releasever=37
  

• Start upgrading. This will reboot machine:

  sudo dnf system-upgrade reboot
  

• Wait until upgrading finish.

References

https://docs.fedoraproject.org/en-US/quick-docs/dnf-system-upgrade/

Install ciopfs

1. Get source code from https://github.com/martanne/ciopfs.

2. Install dependencies.
   Fedora:

   $ sudo dnf install make gcc fuse-devel glib2-devel libattr-devel
   

   Debian:

   $ sudo apt install make gcc libfuse-dev libglib2.0-dev libattr1-dev
   

3. Build and install.

   $ make && make install
   

1. amdgpu installer can be get from https://www.amd.com/en/support. Just select your right card.

2. Download Radeon™ Software for Linux® installer version … for RHEL/CentOS 9.0.
   You will get a rpm file: amdgpu-install-....el9.noarch.rpm.

#include <chrono>

int main() {
	std::chrono::time_point <std::chrono::system_clock, std::chrono::duration<double, std::milli>> then = std::chrono::high_resolution_clock::now();;

	// ... do something ...

	std::chrono::time_point <std::chrono::system_clock, std::chrono::duration<double, std::milli>> now = std::chrono::high_resolution_clock::now();;
	double elapseTimeInMS = (now - then).count();

	return 0;
}

Shorter:

#include <chrono>

using namespace std;

int main() {
	auto then = chrono::high_resolution_clock::now();

	// ... do something ...

	auto now = chrono::high_resolution_clock::now();
	double elapseTimeInMS = chrono::duration<double, milli>(now - then).count();

	return 0;
}

This is about GStreamer on Linux.

Note: You will lose all the links (hyperlink, internal-link) in PDF with this way

Create latex file numbered.tex:

1. Go to about:config, enable config toolkit.legacyUserProfileCustomizations.stylesheets.
2. Go to about:support > Profile Directory > Open Directory. Firefox profile directory will be openned in new window.
3. In your profile directory, create folder chrome if not exist.
4. Go to folder chrome, create file userChrome.css.
5. Copy content from multi-row_tabs.css into userChrome.css.
6. Restart Firefox.

• Right click on the dock > Layouts > Configure…
• In Settings window, go to Preferences tab
• In Actions section > Tick Press ⌘ to activate Application Launcher

Or

• Open ~/.config/kwinrc, then add:

  ...
  [ModifierOnlyShortcuts]
  Meta=org.kde.lattedock,/Latte,org.kde.LatteDock,activateLauncherMenu
  ...
  

• Reload KWin:

  $ qdbus org.kde.KWin /KWin reconfigure
  

  Github QA