http://bugs.winehq.org/show_bug.cgi?id=26862
Summary: Portal 2 crashes at various points of game with disabled GLSL Product: Wine Version: 1.3.18 Platform: x86-64 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown AssignedTo: wine-bugs@winehq.org ReportedBy: NightNord@gmail.com
Tested on both fglrx and mesa drivers, so that's probably not a driver bug.
When GLSL _disabled_ game crashes at any loading screen, with only possible exception of new-game loading screen. When GLSL enabled, mesa driver locks up, but fglrx goes though and loads the game.
(Steam version, with cracks applied to make game running)