Over the past few days, I’ve been trying out picom on Zorin 17 Lite and Zorin 18 with the Xfce desktop. I haven’t been able to enable the blur effect, even after checking the box for it in the picom-conf configurator. Since I wasn’t sure if I needed to adjust any other settings, I also set the backend from xrenderer to glx, but that didn’t help either.
I’d just like to see what the windows would look like with the blur effect, even though I probably wouldn’t leave it permanently enabled on my old hardware.
So here’s the question:
Is it because of my hardware? Can the Dell E6430 with the Nouveau driver not display blur effects?
Or is this effect so minimal that you can't even see it?! Unfortunately, I don't know what it would look like if it worked.
I'll try it. I had set Gaussian in one of my first attempts with picom, but not in the config file of the picom configurator.
Edit: On my newer Dell laptop the blur effect works now by adding dual_kawase, gaussian doesn't work. I'll test later on the older laptop.
Gnome apps don´t use picom. When I install gtk3-nocsd the gnome apps lose their window buttons to hide, maximize, close the windows.
What are the drawbacks of using picom instead of xfwm?
I've noticed that the Picom Configurator's GUI doesn't offer certain options at all, such as the window radius.
Is that also the case with the compositor for Xfwm? Does it offer even more options for customizing windows than what’s available in Window Manager Tweaks at tab compositor? For example, shadow color, different shadow colors and opacities for active and inactive windows, window corner radius, dimming rate for inactive windows?
Now I got the blur effect to work on my older Dell and Zorin 17 Lite.
It wasn't enough to just set dual_kawase as blur-method and glx as the backend.
I needed to add --experimental-backends to the autostart command:
Maybe the blur effect is implemented by default only in later versions of picom.
The Zorin theme works well, but with the Jade-1-red theme the corners at the bottom of the windows don´t look good. How can I solve that not only the frame has rounded corners but also the windows, so that there are no light points in the corners? Many apps don't have bottom rounded corners at all.
When I enable CSD in the .profile's file, the theme works normal and all apps look good, but there are no rounded corners at the buttom then (but other effects of picom like transparency and blur are right).