Bugzilla

I'll note that MOZ_GFX_SPOOF_DRIVER_VERSION appears to be broken, I used it to try and test this following some documentation [1] and while the browser sees the env var and the spoofed version shows up in about:support, it doesn't actually do anything. So this may mean that your testing procedures for the driver blocklist are broken:

GPU #1
Active	Yes
Description	NVIDIA GeForce RTX 2080 Ti
Vendor ID	0x10de
Device ID	0x1e04
Driver Version	26.21.14.4575
Driver Date	3-17-2020


HW_COMPOSITING	
force_enabled by user: Force-enabled by pref
D3D11_COMPOSITING	
Blocklisted; failure code BLOCKLIST_NVIDIA driver != 26.21.14.4575
DIRECT2D	
unavailable by default: Direct2D requires Direct3D 11 compositing


[1] https://wiki.mozilla.org/Blocklisting/Testing#Spoofing_Hardware_Details_for_Blocklist_Testing

EDIT: Ignore me. I misread the blocklist error messages (they should probably show 'version == x' to make it clear what the failure condition is)