diff --git a/arch/libva-v4l2-request-fourier/PKGBUILD b/arch/libva-v4l2-request-fourier/PKGBUILD
index 32bdcc016..56a1772c8 100644
--- a/arch/libva-v4l2-request-fourier/PKGBUILD
+++ b/arch/libva-v4l2-request-fourier/PKGBUILD
@@ -23,20 +23,26 @@
 pkgname=libva-v4l2-request-fourier
 _upstreampkg=libva-v4l2-request
 
-# Pin the fork tip. 7ac934e = "iter38b: bounds check uses MAX_PROFILES
-# (11), not MAX_CONFIG_ATTRIBUTES (10)" — fresnel-fourier campaign
-# production tip 2026-05-14, sibling iter38 added multi-device probe so
-# a single libva session serves rkvdec + hantro without requiring
-# LIBVA_V4L2_REQUEST_VIDEO_PATH overrides. Promote to a later pin only
-# after a future iteration closes cleanly.
-_commit=7ac934e0c5420814c7a5fc3e2a2f08251d590d9e
+# Pin the fork tip. de27e95 = "v4l2: log error_idx + failing ctrl id
+# on S_EXT_CTRLS failure" — Phase 8.13 diagnostic that surfaced the
+# real root cause of the libva→daedalus_v4l2 request-completion
+# timeout (turned out the EINVAL libva was logging was a harmless
+# H264/HEVC probe; actual VP9 stateless control SET worked all along).
+#
+# Prior pin (7ac934e) was iter38b — fresnel-fourier multi-device probe
+# + MAX_PROFILES bounds-check fix. de27e95 adds the daedalus_v4l2
+# probe slot (b5b3acf), the meson option gate (2146341), and the
+# S_EXT_CTRLS diagnostic (de27e95 itself). Backward-compatible on
+# rkvdec / hantro / cedrus / rpi-hevc-dec hosts — daedalus probe is
+# off by default unless the kernel module is present.
+_commit=de27e95571b67ef34619c23a12db4698f9b3454e
 
 # Project version from meson.build (1.0.0) + commit count + short sha,
 # matching the ffmpeg-v4l2-request-fourier convention. Recomputed at
 # build time by pkgver() below; the static value here is a placeholder
 # so AUR-style consumers see something coherent before src/ exists.
-pkgver=1.0.0.r348.7ac934e
-pkgrel=2
+pkgver=1.0.0.r376.de27e95
+pkgrel=1
 pkgdesc="VA-API backend for V4L2 stateless decoders (multiplanar fork — fourier umbrella)"
 arch=('aarch64')
 url="https://git.reauktion.de/marfrit/libva-v4l2-request-fourier"