🔹 Environment
OS: Windows 11
CPU: Intel Core i5-13600KF
GPU: Intel Arc A770
Driver: 32.0.101.8626
Game: League of Legends
Platform: WeGame
🔹 Summary
The automatic highlight recording feature (a.k.a. “Hero Moments”) in League of Legends is completely non-functional on Arc A770.
This is not an intermittent failure — the feature never works.
🔹 Observed Behavior
No highlight capture during gameplay
Post-match highlight generation always fails
Error message shown:
“Failed to generate highlight video… (disk / cmd.exe / service checks)”
These generic checks are not relevant to the actual failure condition.
🔹 Expected Behavior
Event-based recording (kills, assists, etc.) should trigger capture
Highlight video should be generated post-match
🔹 What’s Already Ruled Out
This is not a basic system misconfiguration:
Disk space ✔ sufficient
C:\Windows\System32\cmd.exe✔ present and functionalSystem integrity ✔ verified via SFC / DISM
Background services ✔ normal
Game client ✔ reinstalled
Driver ✔ clean installed
🔹 Key Observation (Important)
Manual recording via OBS Studio works fine
Encoding pipeline (QSV / AV1 / HEVC) is clearly functional
👉 So this is NOT an encoding failure
🔹 Likely Failure Point
This strongly points to a capture trigger / hook failure, not encoding:
Possible areas:
DX11 hook compatibility (LoL is DX11-based)
Event-triggered capture pipeline not firing on Arc
Incompatibility with legacy highlight system (likely built around NVENC assumptions)
Arc driver not exposing expected interfaces for “instant replay”-style capture
🔹 Repro Steps
Launch League of Legends
Play any match
Finish match
Observe: no highlight generated
Repro rate: 100%
🔹 Impact
Feature is effectively dead on Arc platform
No fallback, no partial functionality
User-facing error message is misleading and wastes debugging time
🔹 Additional Notes (Blunt but Useful)
This looks like a systematic compatibility gap, not a one-off bug
The error message suggests generic Windows issues, but the actual failure is likely in:
GPU capture API compatibility
or driver-level support for event-based recording
👉 From a user perspective, this comes across as:
“Feature exists, but silently unsupported on Arc”
🔹 Request
Confirm whether automatic highlight capture is officially supported on Intel Arc GPUs
If supported:
Identify why event-triggered capture fails
If not supported:
This should be explicitly documented (currently it is not)
🔹 Suggested Direction
Validate Arc behavior against:
DX11 hook-based capture
Instant replay / rolling buffer triggers
Compare with NVIDIA NVENC-based workflows (likely baseline assumption in LoL ecosystem)
連結已複製
Hi
May I know if this thread is a duplicate of https://community.intel.com/t5/Graphics/League-of-Legends-Highlight-Capture-Fails-on-Intel-Arc-A770/m-p/1743315#M150652
If it is a duplicate, kindly advise which thread should we focus our support?
Regards,
Ernesto C.
Intel Customer Support Engineer
