Hi, thanks replying and letting me know that v21 is still having the same problem, sounds like someone in "Development" needs to get involved.Please don't close it out.
I'm having this same problem on new Mint 21 install, and hoping there will be a proper solution...soon. Not much info out there, that's how I found this thread. It's why I joined.
Well thanks to this thread my screensaver issue seems to be solved, adding the "--display=:0" bit did the trick.I have a satellite decoder, a HP printer and a lex mark printer on my bench at the moment, when i get a spare space I will run up my test rig with M21-mate and see what happens
Ha, I spoke too soon, that fix did work...once via terminal,