Issues

Issues

• Cinnamon segfault in _cogl_pipeline_free from _cogl_journal_discard during cogl_onscreen_swap_buffers_with_damage

  linuxmint/muffin#891 · opened on Nov 12, 2026

• X11: every keyboard layout switch freezes the compositor for up to ~1 s (reload_keybindings regrabs per-window keybindings on every window)

  linuxmint/muffin#886 · opened on Nov 8, 2026
  2

• Duplicate XRandR mode (user-added, identical to EDID mode) makes output invisible to DisplayConfig state — Display panel shows it disabled, "Set as Primary" ignored

  linuxmint/muffin#881 · opened on Nov 1, 2026

• Add hover transition CSS support for title bar buttons

  linuxmint/muffin#880 · opened on Oct 26, 2026

• llvmpipe is reported as hardware accelerated since 5.4, so software rendering is never detected

  linuxmint/muffin#879 · opened on Oct 25, 2026

• Mouse cursor shape fails to update when moving between widgets (X11, Muffin 6.6.3)

  linuxmint/muffin#870 · opened on Oct 8, 2026

• Disable window resize dimension overlay

  linuxmint/muffin#864 · opened on Sep 19, 2026

• Make Shift-driven legacy window snapping configurable

  linuxmint/muffin#863 · opened on Sep 19, 2026
  2

• SIGSEGV in meta_window_unmaximize when restarting Cinnamon on X11

  linuxmint/muffin#862 · opened on Sep 19, 2026

• X11 audible bell is disabled by muffin, but nothing replaces it when audible-bell is false

  linuxmint/muffin#858 · opened on Aug 30, 2026
  4

• Bug: Maximized always-on-top window is incorrectly stacked below another monitor's window

  linuxmint/muffin#855 · opened on Aug 19, 2026
  2

• Fullscreen windows are not unredirected on NVIDIA X11 even with unredirect-fullscreen-windows enabled, preventing G-SYNC/VRR

  linuxmint/muffin#847 · opened on Jul 30, 2026
  2

• WM_TRANSIENT_FOR resolved only once at manage time — transient never follows its parent to another workspace if it was mapped first

  linuxmint/muffin#846 · opened on Jul 26, 2026

• SIGSEGV in meta_x11_display_logical_monitor_to_xinerama_index — race condition between monitor hotplug and GetMonitors DBus call

  linuxmint/muffin#825 · opened on May 29, 2026
  2

• Muffin loses keyboard focus after IBus restart (triggered by cache reset) until Cinnamon is restarted

  linuxmint/muffin#824 · opened on May 25, 2026

• Regression in 6.6.3: GTK3/GTK4 clients SIGABRT with "xcb_xlib_extra_reply_data_left" under muffin (Mint 22.3 Zena)

  linuxmint/muffin#818 · opened on Apr 23, 2026
  3

• NULL deref in meta_x11_display_logical_monitor_to_xinerama_index

  linuxmint/muffin#817 · opened on Apr 21, 2026
  4

• muffin leaks (interns unbound number of) atoms

  linuxmint/muffin#816 · opened on Apr 12, 2026
  1

• Crash: XDamageCreate on already-destroyed window causes BadDrawable fatal error

  linuxmint/muffin#807 · opened on Mar 4, 2026
  3

• Muffin compositor leaks memory at ~100-140KB/s on X11 with dual monitors

  linuxmint/muffin#806 · opened on Mar 4, 2026

• Error resizing applications when there is one application in each corner of the screen.

  linuxmint/muffin#800 · opened on Feb 18, 2026

• Segfault in _clutter_actor_queue_only_relayout during window icon update

  linuxmint/muffin#789 · opened on Jan 28, 2026
  1

• Cursor not autohiding with MPV when starting in full screen

  linuxmint/muffin#783 · opened on Jan 13, 2026

• Turning on or off second monitor with the screensaver on exposes open windows

  linuxmint/muffin#775 · opened on Dec 20, 2025

• alacritty doesn't takes focus

  linuxmint/muffin#772 · opened on Dec 15, 2025
  15