Wow, vEX, it works!!! Thank you!
Well, sort of... Now everything is properly rendered, but during the initial cut-scene, more or less when Morgan reveals herself, the game freezes
The result is the same both in fullscreen and virtual desktop.
I'm using graphic level 1.
When it freezes, it keeps repeating the last syllable or few syllables of dialog, so I tried muting the system, setting music/dialog/sounds to 0, turning off subtitles and pop-up text, selecting none of the audio drivers in the audio tab of Configure Wine: the result is the same. I tried with both pulseaudio on and killed.
On the terminal, the last messages are a few repetitions (it doesn't keep scrolling, just a few repetitions) of:
fixme:d3d:debug_d3dformat Unrecognized 909200449 (as fourcc: AL16) WINED3DFORMAT!
fixme:d3d:getFormatDescEntry Can't find format unrecognized(909200449) in the format lookup table
fixme:d3d:debug_d3dformat Unrecognized 909201952 (as fourcc: R16) WINED3DFORMAT!
fixme:d3d:getFormatDescEntry Can't find format unrecognized(909201952) in the format lookup table
Any further ideas?