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EdgeChromium Video Acceleration not properly utilised compared to EdgeHTML -iGPU Intel HD 3000

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Highlighted
VonCrisp
Occasional Contributor
Reposting since last thread was mistakenly swept up by forum filter.
Version 76.0.146.0 (Official build) canary (64-bit)
Specs: iGPU: Intel HD 3000, dGPU: ATI 6850m
 
Issue: Livestream playback is not as smooth and lags behind EdgeHTML by 4 seconds when compared side by side between EdgeChromium and EdgeHTML.
 
Background: A general issue on Chromium exists concerning accelerated video on switchable graphics devices causing an internal blacklist to be employed for these systems resulting in the blocking of video hardware acceleration for the iGPU and instead utilising software rendering. dGPU is not used at all. This being not optimal itself.
 
Hence for this test the blacklist resulting in software rendering in EdgeChromium was disabled (#ignore-gpu-denylist was set to Enabled under ://flags) to enable Hardware Accelerated Video decode on the iGPU. All other flags relating to acceleration were unaltered.
 
The situation revolves around the iGPU not being utilised as well on EdgeChromium compared to EdgeHTML. It is questionable if video decode is really being utilised at all with the blacklist disabled.
 

A Live Stream was started at the same time and compared side by side.

 

MSI Afterburner/ Sysinternal Process Explorer were used to see the utilisation of the iGPU (noted as GPU2 on afterburner) between EdgeHTML and EdgeChromium.

 

EdgeHTML utilises the iGPU at 14%-20% 

iGPU usage EdgeHTML TaskManager.JPGiGPU 14-20% usage on EdgeHTML

EdgeChromium hovers around 8-9% (blacklist disabled - supposed hardware video acceleration)

iGPU usage EdgeChromium.JPGiGPU 8-9% usage on EdgeChromium - Blacklist disabled

EdgeChromium hovers around 8-10% (blacklist enabled/software rendering- default setting)

 

iGPU usage EdgeChromium no flags blacklist.JPGiGPU 8-10% usage EdgeChromium default Blacklist enabled

 

Playback on EdgeHTML is smoother/faster at the moment for this older device.

Better utilisation of the iGPU in EdgeChromium would be very welcome.

 

Attached are 2 ://gpu reports.

 

  1. One with with #ignore-gpu-denylist set to disabled (default EdgeChromium setting) that shows that Video Decode is Unavailable / Disabled Features: accelerated_video_decode 
  2. The other html report showing the GPU state with the software rendering blacklist disabled
1 Reply

Thank you @VonCrisp.  I will make the video team aware of this thread.

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