From 41cbc1dd6fd9da9196912b5017642ab69f42cd98 Mon Sep 17 00:00:00 2001
From: rope <fredrik@nordhammer.it>
Date: Sat, 25 Jul 2026 08:54:10 +0100
Subject: [PATCH] macbook: patch aquamarine legacy-iface cursor null bug

---
 hosts/hardware/FredOS-Macbook.nix | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/hosts/hardware/FredOS-Macbook.nix b/hosts/hardware/FredOS-Macbook.nix
index f5656eb..c1cc68c 100644
--- a/hosts/hardware/FredOS-Macbook.nix
+++ b/hosts/hardware/FredOS-Macbook.nix
@@ -54,6 +54,19 @@
 
   # wait_prepare/wait_finish were removed from struct vb2_ops in Linux 6.8
   nixpkgs.overlays = [
+    # Legacy DRM iface (AQ_NO_ATOMIC): every commit without cursor flags
+    # hits the else-branch and nulls the cursor plane → cursor vanishes
+    # whenever it isn't moving (vfr=false commits every frame). Only null
+    # it when the cursor is actually meant to be hidden. Bug present
+    # upstream as of aquamarine 0.11.0 / main (July 2026).
+    (final: prev: {
+      aquamarine = prev.aquamarine.overrideAttrs (old: {
+        postPatch = (old.postPatch or "") + ''
+          sed -i 's|} else if (drmModeSetCursor(|} else if (!connector->output->cursorVisible \&\& drmModeSetCursor(|' \
+            src/backend/drm/impl/Legacy.cpp
+        '';
+      });
+    })
     (final: prev: {
       linuxPackages_6_12 = prev.linuxPackages_6_12.extend (lpFinal: lpPrev: {
         facetimehd = lpPrev.facetimehd.overrideAttrs (old: {