Hey there, I have installed Lutris on my Steam Deck, then have installed EA games client as well as Ubisoft launcher.
BUT, when I try to log in to my accounts I am not able to type / write any letter into the credentials box.
The keyboard pops up (Steam + X of course) but no letters are typed at all.
Is there any trick or workaround for that strange behavior?
try change Wine version to Proton Experimental
Where exactly please? Where do I change Wine to PE?
In Lutris, RIght click on your app ,configure, runner configuration, change Wine version.
I did this - I changed Wine to Proton Experimental. I restarted the Deck but nothing changed - the keyboard is inactive although is popped up. Cannot write on it.
This is happening exclusively in Lutris when trying to login to EA and Ubisoft.
Otherwise, the keyboard is working without any issue.
What is your Lutris version?
0.5.19 downloaded directly from Discover app in SD
I have just reinstalled Lutris but it seems I am out of luck here.
Changed runner option to Proton Experimental even before the first launch of EA App but the keyboard is not responding to my input.
I’m giving up, am uninstalling Lutris… 
Mod can close this one off.
Did you try in desktop mode?
I tried only in Desktop mode on Steam Deck, never was in the Gaming mode for this.