Linux speakers hum after no audio

 Linux (Artix / Arch) is putting my speakers to sleep after a few seconds of no audio activity and the speakers hum because of it.  Found the fix on reddit

# echo 0 > /sys/module/snd_hda_intel/parameters/power_save

Set KDE to use X11 instead of Wayland

 I use Artix Linux and by default it uses Wayland.  Some programs I have don't support that yet so I need to switch to X11 permanently.  If you are in KDE you can log out and change the session to X11 but this doesn't "stick" long term.  The fix is 

- Open KDE start menu

- Search for Login and pick Login Screen (SDDM)

- In the top menu click Behavior

- At the top change it to X11 where it says "Automatically login with session"

- Click Apply

KDE Halloween color scheme

 Put the color file in the following path then go to Settings > Colors

/home/[username]/.local/share/color-schemes/

Color file here : https://github.com/htx80nerd/kde-halloween-colors/tree/main

KDE System Settings crashes opening

I use KDE Systems Settings often sometimes, especially when changing fonts or color themes I might end up inside of it several times in 1 hr.  Sometimes when I open it crashes straight away.

The cause is there is some 'systemsettings' process running in the background.  So the fix here is to open a terminal and kill it then try to open again.

$killall systemsettings

Geany in dark mode on KDE

 This is how to get Geany into light mode using KDE.  My KDE is already in light mode so I am unsure why Geany opens in dark mode.  Open the KDE menu and go to geany then right click > edit.  Then click Applications tab at the top.  In the line 'Environmental variables' add this

GTK_THEME=Breeze

LibreOffice Writer stuck in dark mode

I was able to force LibreOffice Writer into light mode by editing this line to the libreoffice-writer.desktop file found here

/home/USERNAME/.local/share/applications/

You can see your available theme names here

/usr/share/themes/

Orig : 

Exec=libreoffice --writer %U

Edit :

Exec=env GTK_THEME=Breeze libreoffice --writer %U

NOTE THIS HAD TO BE CHANGED ON 2 DIFFERENT LINES

KDE custom keyboard shortcuts using kdotool

For my job I have many windows open across multiple desktops and I often need to get back to a window on a different desktop quickly, or pressing ALT+Tab isnt a good option because I have 5+ windows open.

In KDE system settings search for 'shortcut' then click Add New button > 'Command or Script' and use a command like this

kdotool search --name slack windowactivate

After that click 'add custom shortcut' button and press the keyboard combo you want.

Brave browser and Vivaldi won't open in KDE

 Ran into a weird issue today - suddenly Brave and Vivaldi refuse to open.  Same for Brave Beta.  Running from the command line I see something like this

[15524:15524:0724/100844.416388:ERROR:process_singleton_posix.cc(226)]
read() failed: Connection reset by peer (104)
[15524:15524:0724/100844.550935:ERROR:browser_main_loop.cc(278)]
GLib-GObject: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed
[15524:15524:0724/100844.550956:ERROR:browser_main_loop.cc(278)]
GLib-GObject: g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE (interface_type)' failed
[15524:15524:0724/100844.550963:ERROR:browser_main_loop.cc(278)]
GLib: g_once_init_leave: assertion 'result != 0' failed
[15524:15524:0724/100844.550966:ERROR:browser_main_loop.cc(278)]
GLib-GObject: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed
[15524:15524:0724/100844.550969:ERROR:browser_main_loop.cc(278)]
GLib-GObject: g_type_register_static: assertion 'parent_type > 0' failed

I fixed this by chance by going into the KDE settings > Appearance and changing everything back to Breeze.  And under 'Application Style' on the bottom right I clicked 'Configure GNOME/GTK Application Style' and changed that to Breeze (it was blank before).  Did not have to reboot and all browsers launch ok now.  Did have a slight delay with Vivaldi but it seems ok.