Picom blur setting not working

Help
1

here is my picom config…

services.picom = {
		enable = true;
		backend = "glx";
		fade = true;
		settings = {
			blur = { 
				method = "dual_kawase";
    			        size = 20;
   			 	deviation = 5.0;
  			};
		};
		inactiveOpacity = 0.8;
	};

fade is ok, opacity is ok…but no blur. i check that picom in nixos using yshui fork. yshui fork support kawase blur…why i dont get blur on my laptop??

2

you got glx enabled and working?

glxgears glxinfo?

maybe a screenshot would help?