xcffib VS X11

#!/bin/bash # last updated July 4, 2023... “We will not go quietly into the night..."" # Update system sudo apt-get update # Install core dependencies sudo apt-get install -y python3-cffi libpangocairo-1.0-0 --reinstall # Install xcffib with pip # pinning to this version since newer versions don't have ffi_build (I think renamed to just ffi): # https://github.com/tych0/xcffib/tree/v0.12.1/module pip3 install xcffib==0.12.1 # Install cairocffi with pip # The order of xcffib and cairocffi is important and the flags are important: # https://github.com/qtile/qtile/issues/994#issuecomment-497984551 pip3 install --no-cache-dir --no-build-isolation cairocffi==1.4.0 # Install Qtile pip3 install qtile==0.22.1 --force-reinstall # Create a desktop entry for Qtile echo "[Desktop Entry] Name=Qtile Comment=Qtile Session Exec=qtile start Type=Application Keywords=wm;tiling" | sudo tee /usr/share/xsessions/qtile.desktop echo "Qtile installation completed successfully. You can select Qtile from your session manager."

The instructions on https://github.com/xmonad/X11 seem fairly straightforward, so I could update. But dealing with this library is not something I remember ever doing explicitly and is not mentioned (explicitly, at least) in the instructions have followed lately for (re)installing XMonad via stack (e.g., https://github.com/xmonad/xmonad/blob/master/INSTALL.md, https://github.com/slotThe/xmonad/blob/new-tutorial/INSTALL.md or https://brianbuccola.com/how-to-install-xmonad-and-xmobar-via-stack/). In fact, for Debian systems all that is suggested is an apt install of several packages. So I'd rather not try this experiment on my own right now since, in the past, I've sometimes been left with a mess that took me a while to get out from.

Looks like your xmonad (or, more specifically, https://hackage.haskell.org/package/X11) is built without xinerama. Check if you have libxinerama-dev and then make sure X11 and xmonad are rebuilt.