Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

High iGPU load when watching streams in firefox.

  • 3 replies
  • 0 have this problem
  • 13 views
  • Last reply by EBK21

more options

System:

Windows 10 pro 22h2 19045.3516

Intel i5-10200h with UHD 620

Driver 31.0.101.2125

Firefox ESR 115.3.0


When watching streams in firefox, I noticed that overall iGPU load is very high, up to 70%, a lot higher than watching 1080p movie with dedicated player.

I found that the firefox actually only shares 10~20 iGPU load, the rest are from DWM, which load is up to 40% sometimes.

Also found if I switch from the tab with streaming page to another normal webpage, DWM immediately drops its usage to about 2%, firefox still uses some load as it's still decoding. DWM usage rises if I switch back.

I tried force firefox to use nvidia dGPU, firefox does use nvidia card to decode, but the DWM problem said above still apply.


See attatched image as prove.


Cross reference to intel community thread: https://community.intel.com/t5/Graphics/High-iGPU-load-when-watching-streams-in-firefox/m-p/1528571#M123027

System: Windows 10 pro 22h2 19045.3516 Intel i5-10200h with UHD 620 Driver 31.0.101.2125 Firefox ESR 115.3.0 When watching streams in firefox, I noticed that overall iGPU load is very high, up to 70%, a lot higher than watching 1080p movie with dedicated player. I found that the firefox actually only shares 10~20 iGPU load, the rest are from DWM, which load is up to 40% sometimes. Also found if I switch from the tab with streaming page to another normal webpage, DWM immediately drops its usage to about 2%, firefox still uses some load as it's still decoding. DWM usage rises if I switch back. I tried force firefox to use nvidia dGPU, firefox does use nvidia card to decode, but the DWM problem said above still apply. See attatched image as prove. Cross reference to intel community thread: https://community.intel.com/t5/Graphics/High-iGPU-load-when-watching-streams-in-firefox/m-p/1528571#M123027
Attached screenshots

All Replies (3)

more options

@EBK21, Why are you using Firefox ESR 115.3.0 on Windows 10? Did you update?

more options

Rapha-L Pherdiux said

@EBK21, Why are you using Firefox ESR 115.3.0 on Windows 10? Did you update?

I need to use addons not in the addons workshop. But developer editions updates too frequently for me.

more options

Looks like a driver bug. It's even worse with chrome..