Here is the code around that XSetInputFocus(): https://salsa.debian.org/gnome-team/gtk3/-/blob/debian/master/gdk/x11/gdkdisplay-x11.c#L1473
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Simon McVittie
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Tormod Volden
- Bug#1030909: Unable to run xscreensaver-demo or xscreensave... Jamie Zawinski