fix(gui): show the real reason an Environment Apply/Install failed — 0.10.2

Thread the command output through to the status line and classify it: cancelled
at the password prompt vs. the system rejecting the change (e.g. a BIOS/kernel-
locked PCIe ASPM policy), instead of a vague "cancelled, or needs privileges".

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to RigDoctor are recorded here. Format follows
 (`MAJOR.MINOR.PATCH`, pre-1.0). `__version__` and `pyproject.toml` must match the git
 release tag (so the auto-updater, D18, can compare versions).
 
+## [0.10.2] - 2026-05-22
+### Changed
+- When an Environment **Apply**/**Install** fails, the status now shows the **real reason**
+  (cancelled at the password prompt vs. the system rejecting the change, e.g. a BIOS/kernel-
+  locked PCIe ASPM policy) instead of a vague "cancelled, or needs privileges".
+
 ## [0.10.1] - 2026-05-22
 ### Fixed
 - **Environment-page contrast.** The combo-box **drop-down list** was rendering light-on-light

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "rigdoctor"
-version = "0.10.1"
+version = "0.10.2"
 description = "Modular hardware monitoring & crash diagnostics for Linux gamers."
 readme = "README.md"
 requires-python = ">=3.11"

src/rigdoctor/__init__.py

@@ -1,3 +1,3 @@
 """RigDoctor — modular hardware monitoring & crash diagnostics for Linux gamers."""
 
-__version__ = "0.10.1"
+__version__ = "0.10.2"

src/rigdoctor/gui/environment_page.py

@@ -19,9 +19,20 @@ from PySide6.QtWidgets import (
 from .widgets import finding_card
 
 
+def _fail_reason(out: str) -> str:
+    """Turn the failed command's output into a short, human reason."""
+    low = (out or "").lower()
+    if "not authorized" in low or "dismissed" in low or "authentication" in low:
+        return "cancelled at the password prompt"
+    if "operation not permitted" in low or "invalid argument" in low or "permission denied" in low:
+        return "the system rejected the change (it may be locked by BIOS/kernel)"
+    last = next((ln.strip() for ln in reversed((out or "").splitlines()) if ln.strip()), "")
+    return (last[:80] or "no privileges, or cancelled")
+
+
 class EnvironmentPage(QWidget):
     _result = Signal(object)       # list[Finding]
-    _action_done = Signal(object)  # (label, rc) — install or apply finished
+    _action_done = Signal(object)  # (label, rc, output) — install or apply finished
 
     def __init__(self) -> None:
         super().__init__()
@@ -117,8 +128,8 @@ class EnvironmentPage(QWidget):
     def _work_install(self, component) -> None:
         from ..core import installer
 
-        rc, _out = installer.install_packages(list(component.apt))
+        rc, out = installer.install_packages(list(component.apt))
-        self._action_done.emit((component.name, rc))
+        self._action_done.emit((component.name, rc, out))
 
     def _apply(self, fix_id: str, value: str) -> None:
         if self._busy:
@@ -131,15 +142,15 @@ class EnvironmentPage(QWidget):
     def _work_apply(self, fix_id: str, value: str) -> None:
         from ..core import fixes
 
-        rc, _out = fixes.apply(fix_id, value)
+        rc, out = fixes.apply(fix_id, value)
-        self._action_done.emit((value, rc))
+        self._action_done.emit((value, rc, out))
 
     def _on_action_done(self, result) -> None:
-        label, rc = result
+        label, rc, out = result
         self._busy = False
         if rc == 0:
             self._status.setText(f"{label} applied — re-checking…")
             self._run()  # re-run so the finding reflects the new state
         else:
             self._run_btn.setEnabled(True)
-            self._status.setText(f"'{label}' failed (cancelled, or needs privileges)")
+            self._status.setText(f"'{label}' failed — {_fail_reason(out)}")