Same thing has happened to me. Ubuntu 19.10 upgrade with all updates installed. Game shows black screen with mouse control, but the game doesn't start. After a minute I get the opening screen with the man in yellow suit, but no mouse controls at all. I can alt-tab and try to switch to other screens, but that doesn't work. I stay locked in the game screen with no way out. I can CTL-ALT-F3 and open a terminal session and restart the computer. I have Nvidia card that has always worked before.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1849217 Title: Steam game freezes on startup (only on Xorg session) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/steam/+bug/1849217/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs