OK @elcste you are right, I discover that on some of the system this setting is as you say , bring issues
- On my main system with Quadro 2000 (installed proprietary nvidia driver - WebGL frame rate is 4 times faster) I observe issue on running Caja (not tested with nouveau), sometime is fast, sometime loading a folder it take couple of seconds, and selecting with mouse sometime is slower or selecting something up or down from mouse position, bot on the other side the entire desktop is a little bit slow in a positive sense, everything run “smoother”.
- On a intel on cpu video this setting can render sometime the entire PC unresponsive if using the browser so you can’t do anything couple of seconds because nothing works.
Changing mentioned setting on some other system with AMD video card or on intel cpu video there is no difference, or just different but same issue.
Using Cromium is better on system where I tested, as tearing on scrolling does not exist because no “smooth scrolling” on system with smooth scrolling mouse ,and youtube video the tearing is in same place somewhere on top of the screen, visible only if I switch to full screen playing.
I observe that on my main system switching back and forth from GPU to adaptive and back to GPU will solve the issue par example in Caja, so for now I use the GPU mode to further testing, to see if I can leave it as my main setting…