docs(agent): #95 is two Ghostty failures, not one OpenGL floor

Photo A (Acer): OpenGL 4.2 → OpenGLOutdated / SurfaceError.
Photo B (XPS): silent exit after GDK_DISABLE=gles-api,vulkan with no
OpenGL line — different machine, different root cause. A fix for only
one is not done.

agent/BACKLOG.md

@@ -144,13 +144,14 @@ template source. Pass = Chromium launches after installation and HTTP/HTTPS
 mime defaults resolve to `chromium-browser.desktop` (and the intended live-ISO
 browser posture is explicit).
 
-### 95. Live ISO/install: Ghostty does not open on old OpenGL
+### 95. Live ISO/install: Ghostty does not open — **two distinct failures**
 
-**Diagnosed 2026-07-14 on Acer Aspire M5-481T** (Dell XPS 9350 starts Ghostty
+Two photos, two machines, **two different Ghostty death modes**. Do not
-fine — machine-specific). From a working shell:
+collapse them into one "old GPU" fix; a fix for (A) can leave (B) broken.
+
+**A — Acer Aspire M5-481T: OpenGL too old (explicit)**
 
 ```
-info: renderer=renderer.generic.Renderer(renderer.OpenGL)
 info(opengl): loaded OpenGL 4.2
 warning(opengl): OpenGL version is too old. Ghostty requires OpenGL 4.3
 warning(gtk_ghostty_surface): failed to initialize surface
@@ -159,20 +160,41 @@ warning(gtk_ghostty_surface): surface failed to initialize
   err=error.SurfaceError
 ```
 
-Not a packaging/missing-binary bug: Ghostty 1.3.1 runs, reads config, then
+Ghostty 1.3.1 starts, loads config, hits the GPU floor, prints the reason,
-refuses the GPU. Default terminal is Ghostty (`nomarchy.terminal`), so
+returns to the shell (~2s). Anything ≤ GL 4.2 (Ivy Bridge era) is dead for
-SUPER+Return and the launcher entry are dead on anything ≤ GL 4.2 (Ivy Bridge
+the default terminal.
-era and similar).
 
-**Fix direction:** detect/soft-fallback — e.g. Ghostty config for a software
+**B — Dell XPS 9350 (photo without Acer bezel): silent exit after GDK_DISABLE**
-GL path if one exists and works; or auto-pick a second terminal (kitty is what
-Bernardo added by hand on the Acer) when `glxinfo`/EGL reports < 4.3; or
-document + installer/hardware probe that swaps the default. Do not silently
-leave SUPER+Return bound to a terminal that cannot map a surface.
 
-**Pass:** on a GL 4.2 (or softGL) guest/host, SUPER+Return opens a usable
+```
-terminal; on modern GL, Ghostty remains default and themed. V2 softGL/QEMU is
+warning(gtk_ghostty_application): setting GDK_DEBUG=
-acceptable for the fallback path; V3 on the Acer confirms the real iGPU.
+warning(gtk_ghostty_application): setting GDK_DISABLE=gles-api,vulkan
+~ 9s )
+```
+
+Same Ghostty 1.3.1 / GTK path / config read — but **no** `info(opengl):`
+line, **no** OpenGLOutdated, **no** SurfaceError. Process ends after ~9s
+and leaves only the two `GDK_*` warnings. XPS Skylake iGPU is not a GL-4.2
+floor machine; this is a different surface/backend failure (forced desktop
+OpenGL after disabling GLES+Vulkan, Wayland/EGL context, incomplete first
+session after #123, …). Capture a second run with `GDK_DEBUG` / Ghostty
+`-e` verbosity or `WAYLAND_DEBUG=1` before guessing the patch.
+
+**Shared product impact:** default terminal is Ghostty (`nomarchy.terminal`),
+so SUPER+Return and the launcher entry are dead when either mode hits.
+Bernardo worked around on the Acer by adding `kitty` to `home.packages`.
+
+**Fix direction (likely two slices):**
+1. **(A)** soft-fallback or alternate default when GL < 4.3 (probe, or
+   ship a second terminal and bind/fallback).
+2. **(B)** reproduce on XPS-class hardware or QEMU with a capable GL stack;
+   fix the silent path (must never exit without a user-visible error or a
+   working window). May interact with #123 if the first session is half-baked.
+
+**Pass:** SUPER+Return opens a usable terminal on **both** the Acer (A) and
+the XPS (B); modern-GL machines still get themed Ghostty by default; a
+regression that only fixes A or only B is not done. V2 may cover (A) via
+softGL version pinning; (B) needs the XPS or a faithful GL/Wayland guest.
 
 ### 98. Boreal: button text renders black and is difficult to read
 

agent/HARDWARE-QUEUE.md

@@ -436,10 +436,13 @@ the **T14s** (webcam case).
       **without** running `home-manager switch` by hand. **Fail** = still
       need the recovery one-liner, or GTK/nm-applet still wrong until a
       manual switch (then the bake is still incomplete).
-- [ ] **#95 Ghostty on Acer M5-481T (OpenGL 4.2)** — after a software-GL
+- [ ] **#95 Ghostty — two machines, two failure modes** — after the fix(es):
-      or alternate-terminal fallback ships: SUPER+Return opens a usable
+      **(A) Acer M5-481T:** SUPER+Return opens a usable terminal (today:
-      terminal on the Acer. On a modern-GL machine Ghostty remains the
+      OpenGL 4.2 → `OpenGLOutdated` / `SurfaceError`). **(B) Dell XPS 9350:**
-      default. Capture one screenshot of the open terminal on the Acer.
+      SUPER+Return opens a usable terminal (today: silent exit after
+      `GDK_DISABLE=gles-api,vulkan`, no OpenGL line). A modern-GL box still
+      gets themed Ghostty by default. **Both** A and B required — fixing only
+      the GL floor is not done.
 - [ ] **#124 flake pin after main-ISO install** — on a machine installed
       from a **main-built** ISO (post-fix): `~/.nomarchy/flake.nix`
       nomarchy input must not re-resolve to a lagging `v1` that lacks

agent/JOURNAL.md

@@ -31,14 +31,24 @@ Template:
   2. **#124** — seeded flake hardcodes `?ref=v1` while installer writes
      main-era `nomarchy.hardware.*`; v1 lags (~hundreds of commits) →
      `nomarchy.hardware does not exist` on Acer rebuild/pull.
-  3. **#95** enriched — Ghostty on Acer is OpenGL 4.2 < required 4.3
+  3. **#95** — Ghostty fails on **both** machines for **different** reasons
-     (`error.OpenGLOutdated`); XPS starts Ghostty fine.
+     (corrected after Bernardo: two photos ≠ one diagnosis). **(A) Acer:**
+     OpenGL 4.2 → `OpenGLOutdated`. **(B) XPS:** silent exit after
+     `GDK_DISABLE=gles-api,vulkan` with no OpenGL line — not a GL-floor bug.
   HARDWARE-QUEUE V3 rows for all three. Photos stay local (not committed).
 - **Verified:** V0 (docs/agent only).
 - **Pending:** implement #123 first (unblocks first-boot polish); then
-  #124; #95 is independent (old-GPU floor).
+  #124; #95 is independent and likely **two slices** (A vs B).
 - **Next suggestion:** #123 (installer bake) — highest blast radius.
 
+## 2026-07-15 — Correct #95: two Ghostty photos, two causes
+- **Task:** Bernardo noted two Ghostty-fail photos with different reasons.
+- **Did:** #95 + HARDWARE-QUEUE rewritten: (A) Acer OpenGLOutdated explicit;
+  (B) XPS silent exit after GDK_DISABLE — must not be folded into one fix.
+- **Verified:** V0 (docs only).
+- **Pending:** —
+- **Next suggestion:** still #123.
+
 ## 2026-07-15 — #119: mime defaults must name a present .desktop (this commit)
 - **Task:** BACKLOG #119 — `text/plain` named vscode, which the live ISO never
   ships (same GIO-skip trap as #94, one key over).