Whenever I try to run tetris, or snake, or pong, I get "arithmetic overflow error". After digging a bit, I found where the issue lies. This function: (defun gamegrid-calculate-glyph-size () "Calculate appropriate glyph size in pixels based on display resolution. Return a multiple of 8 no less than 16." (let ((atts (frame-monitor-attributes)) y-pitch) (setq y-pitch (cond (atts (/ (nth 4 (assq 'geometry atts)) (nth 2 (assq 'mm-size atts)) (or (cdr (assq 'scale-factor atts)) 1.0))) ((and (display-pixel-height) (display-mm-height)) (/ (display-pixel-height) (float (display-mm-height)))))) (if y-pitch (let* ((pixels (* y-pitch gamegrid-glyph-height-mm)) (rounded (* (floor (/ (+ pixels 4) 8)) 8))) (max 16 rounded)) 16))) Is the one causing the error. Where in particular? This section: (/ (nth 4 (assq 'geometry atts)) (nth 2 (assq 'mm-size atts)) What's the issue here? `(assq 'mm-size atts)` returns 0. For some reason, emacs can't seem to get my monitor size in milimeters. I have tried this on two different laptops, they both return proper values. This is happening on my desktop, where it fails. I am using Wayland (with Hyprland) and the PGTK version of emacs, which likely has something to do with this. This is what `frame-monitor-attributes` returns for me: ((name . "HDMI") (geometry 0 0 1920 1080) (workarea 0 0 1920 1080) (mm-size 0 0) (scale-factor . 1.0) (frames # #) (source . "Gdk")) As you can see, the `mm-size` is 0, so emacs divides by zero. Amazingly, this is not what causes the error, the variable simply gets set to infinity. The error comes later, when it tries to multiply by infinity. Oh lord. This is what emacs outputs on my laptop for the same `frame-monitor-attributes`. Note that my laptop runs the exact same setup, it also runs Hyprland, it also runs emacs with PGTK, it uses the same config for everything since I have the same dotifles repo cloned in both systems: ((name . "0x0335") (geometry 0 0 1366 768) (workarea 0 0 1366 768) (mm-size 310 170) (scale-factor . 1.0) (frames # #) (source . "Gdk")) This time, the `mm-size` gets properly calculated. So something is funky with `frame-monitor-attributes`. Any direction on how I can further debug this would be appreciated. In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.37, cairo version 1.17.8) of 2023-03-21 built on Rainbow Repository revision: 42fba8f36b19536964d6deb6a34f3fd1c02b43dd Repository branch: makepkg System Description: Arch Linux Configured using: 'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib --localstatedir=/var --mandir=/usr/share/man --with-gameuser=:games --with-modules --without-libotf --without-m17n-flt --without-gconf --with-native-compilation=yes --with-native-compilation=aot --with-xinput2 --with-pgtk --without-xaw3d --with-sound=alsa --with-tree-sitter --without-gpm --without-compress-install '--program-transform-name=s/([ec]tags)/1.emacs/' 'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fno-plt -fexceptions -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fstack-clash-protection -fcf-protection' LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PGTK PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XIM GTK3 ZLIB Important settings: value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: Lisp Interaction Minor modes in effect: which-key-mode: t recentf-mode: t global-git-commit-mode: t magit-auto-revert-mode: t shell-dirtrack-mode: t override-global-mode: t vertico-mouse-mode: t vertico-mode: t corfu-popupinfo-mode: t global-corfu-mode: t corfu-mode: t pixel-scroll-precision-mode: t global-display-line-numbers-mode: t display-line-numbers-mode: t tooltip-mode: t global-eldoc-mode: t eldoc-mode: t show-paren-mode: t electric-indent-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t line-number-mode: t transient-mark-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t Load-path shadows: 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cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads dbusbind inotify dynamic-setting system-font-setting font-render-setting cairo gtk pgtk lcms2 multi-tty make-network-process native-compile emacs) Memory information: ((conses 16 319167 94405) (symbols 48 21107 3) (strings 32 87375 4726) (string-bytes 1 3487955) (vectors 16 53395) (vector-slots 8 1061140 40998) (floats 8 774 1186) (intervals 56 2980 534) (buffers 984 30))