docs: record the Linux hardware sign-off

README.md

@@ -6,7 +6,7 @@ An open-source game recorder for Windows and Linux, inspired by Plays.tv. Rust a
 
 ## Current state
 
-The recording foundation is being validated (see [docs/validation.md](docs/validation.md)). `clipbin-obs` records official OBS capture sources through one hardware encoder into keyframe-aligned segments and reports honest status; `clipbin-probe` exercises it. It passes the Linux headless rig; hardware sign-off on Hyprland and all Windows validation are still to do.
+The recording foundation is being validated (see [docs/validation.md](docs/validation.md)). `clipbin-obs` records official OBS capture sources through one hardware encoder into keyframe-aligned segments and reports honest status; `clipbin-probe` exercises it. It passes the Linux headless rig and the hardware sign-off on CachyOS/Hyprland/RX 9070 XT; all Windows validation is still to do.
 
 The desktop app is still the initial shell: it opens a GPUI window, displays the agreed recording defaults, and always reports **Not recording**. Steam detection, the recorder in the app, playback, clipping, bookmarks, persistence, global hotkeys, autostart, and background recording are not implemented yet.
 
@@ -95,9 +95,9 @@ cargo check --locked -p clipbin-core
 
 ## First recording milestone
 
-1. Validate official OBS capture and recording-health signals on CachyOS, Hyprland and the RX 9070 XT at 1440p60. *Rig validated; hardware sign-off pending.*
+1. Validate official OBS capture and recording-health signals on CachyOS, Hyprland and the RX 9070 XT at 1440p60. *Passed on CachyOS/Hyprland/RX 9070 XT (H.264, HEVC, AV1).*
 2. Select and pin a tested OBS runtime, Rust bindings, and official plugin set together. Preserve the original signed Windows capture-hook binaries. *Pinned to OBS 32.0.4 and libobs crate 5.0.1; Windows runtime unvalidated.*
-3. Prove one continuous hardware encoder can produce short keyframe-aligned segments and remux clips across their boundaries while recording continues. *Proven in the rig with VA-API H.264 and HEVC.*
+3. Prove one continuous hardware encoder can produce short keyframe-aligned segments and remux clips across their boundaries while recording continues. *Proven in the rig and on the RX 9070 XT with VA-API H.264, HEVC and AV1.*
 4. Integrate the recorder without blocking GPUI, then add native playback and seeking.
 
 The capture integration uses official OBS components only: Windows Game Capture/Window Capture, X11 Xcomposite, and Wayland PipeWire/desktop-portal capture. Third-party game hooks are excluded.

docs/validation.md

@@ -9,7 +9,7 @@ pass/fail results.
 | Where | Script | Status |
 | --- | --- | --- |
 | Linux, headless rig (Wayland portal + Xwayland) | `scripts/validate/linux-rig.sh` | All 9 scenarios pass on devbox (Intel UHD 770, VA-API) |
-| Linux, real session (CachyOS, Hyprland, RX 9070 XT, 1440p60) | `scripts/validate/linux-hardware.sh` | 2026-10-08: H.264, HEVC and AV1 usable; restore token works |
+| Linux, real session (CachyOS, Hyprland, RX 9070 XT, 1440p60) | `scripts/validate/linux-hardware.sh` | Passed 2026-10-08 (run 4, dc9cbd6) |
 | Windows (Game Capture, NVENC/AMF/QSV) | `scripts/validate/windows.ps1` | Not run yet; script untested |
 
 ## Probe commands
@@ -94,6 +94,14 @@ CachyOS 7.2.9, Hyprland, RX 9070 XT, 1440p60, OBS 32.0.4:
 - A portrait monitor (Hyprland transform 3) is captured as 1440x2560 and
   pillarboxed in the 2560x1440 canvas.
 
+### Fourth hardware run: pass (2026-10-08, dc9cbd6)
+
+After restarting xdg-desktop-portal-hyprland, every step passed: H.264, HEVC
+and AV1 through VA-API at 1440p60, monitor and window capture with motion,
+keyframe-aligned segments that remux across boundaries, and a restored
+selection that skipped the picker. Closing a window was again not detected
+(informational, see findings).
+
 ## Windows
 
 Run `scripts/validate/windows.ps1 -GameWindow "<title>:<class>:<exe>"` with a