[BUG] XeSS Frame Generation Fails in Hybrid Mode (Arc A530M + UHD 710) - Works in dGPU Mode

[deimosdimo]

System Configuration:

Laptop Model: Lenovo LOQ 15IAX9I

CPU: Intel Core i5-12450HX

Discrete GPU (dGPU): Intel Arc A530M (4GB)

Integrated GPU (iGPU): Intel UHD Graphics

RAM: 32 GB Skhynix 4800mhz

OS: Windows 11 Home 25H2 26200.7462

Graphics Driver Version: Arc 8331, Intel UHD 7082

Game: Cyberpunk 2077 (Latest Patch, legal)

Issue Description: I am experiencing a critical issue with XeSS Frame Generation functionality depending on the GPU Working Mode (MUX Switch status).

Scenario A (dGPU Only Mode): When I switch my laptop to "Discrete Graphics" mode via the BIOS/Lenovo Vantage (bypassing the iGPU), XeSS Frame Generation works perfectly. I see a significant FPS boost and smooth frame pacing.

Scenario B (Hybrid / MSHybrid Mode): When I switch back to standard "Hybrid Mode" (where the dGPU renders but the iGPU handles the display output), Frame Generation fails to function correctly.

Symptom: The option enables but provides 0 FPS gain / The game becomes stuttery despite high FPS counter.

Technical Observation: It appears that the presentation path through the Intel UHD iGPU in Hybrid mode is acting as a bottleneck or is incompatible with the generated frames from the Arc A530M. The frames generated by XeSS on the A530M do not seem to be passing through the iGPU's copy engine correctly, leading to the feature failing or causing severe pacing issues.

**Steps to Reproduce:

Set laptop to "Hybrid Mode" (MSHybrid).

Launch Cyberpunk 2077.

Enable XeSS "Ultra Quality", "Quality" or "Balanced" etc.

Enable "XESS Frame Generation".

Observe performance (Stuttering and lack of FPS increase).

Restart laptop in "dGPU Mode" and repeat -> feature works as intended.**

Request: Please investigate the interaction between Arc Mobile dGPUs and Intel iGPUs regarding Frame Generation presentation in Hybrid configurations.

[mike-intel]

@deimosdimo thank you for reporting the problem!

We'll see what we can do on our end.

In the meantime, please try enabling vsync in the game settings - it might help with the stutter in hybrid mode.

[deimosdimo]

Thanks for the suggestion. I tested enabling VSync in Hybrid Mode.

Results:

Visuals: It did help with frame pacing. The severe stuttering and tearing are reduced, making the image look smoother.

Performance: However, the performance penalty is significant. There is a visible FPS drop and increased input latency compared to running the same settings in Discrete (dGPU) Mode. Since the goal of Frame Generation is to maximize performance, losing FPS to stabilize the image defeats the purpose of the feature in this mode.

In Discrete Mode, I get both high FPS and smooth frame delivery without needing VSync.