Left 4 Dead 2

What works

Game works perfectly including intro video, Steam Community Workshop and Steam In-game Overlay. Also mouse options like Raw Mouse Input will work. Sending voice chat was not tested as microphone was not detected by Steam, but it's possible to hear others.

What does not

All game features are working.

Workarounds

What was not tested

• Any microphone related options (Steam does not detect microphone)
• Other sound output options than stereo audio (2 channels)
  
  

Hardware tested

Graphics:

• GPU:
• Driver:

Additional Comments

Rating as Platinum as game works out of box and microphone problem is related to Steam parent application. Wine was compiled using 32-bit libs. Testing system: AMD Phenom II x4 B55 800MHz fourth core unlocked, 8GB, NVidia 275GTX 896MB, using NVidia 304.88 driver. Using ALSA with SB Audigy 2. Some test results related to rendering: About 30-35 frames per second using 1920x1080, 4xMSAA, 8xAnisotrophy, film grain off, double buffered v-sync, high shader detail, very high effect detail, high model/texture detail, multicore rendering enabled. About 50-60 frames per second using 2xMSAA, 2xAnisotrophy, medium shader, v-sync off About 120-135 frames per second using No anti-aliasing, triple buffer, medium shader, v-sync off

- To get past the "Incomplete Installation" error:

Use Wine-1.1.35 or later

- To get past crashing at the MOTD display when joining a multiplayer game:

Either: Use native urlmon.dll (can be limited to just left4dead2.exe),
Or: Use wine-1.1.27 or earlier.

- To improve the performance

1. Enable multicore rendering.  This increases performance by 10-15 fps in most places for me.
2. Use the following patch:
http://bugs.winehq.org/attachment.cgi?id=24812
   This increases performance by 50-60 fps in most places for me.  Note that you may need to minimise/restore or otherwise lose and regain focus of the game to fix the flashlight and some textures if using this patch.
   The performance is so much better in wine-1.1.33 that this doesn't seem to be needed any more.  The framerate with this in wine-1.1.32 was still higher than the framerate without this in wine-1.1.33 though.

- To get past the crashing/restarting/broken game files which occurs every few minutes during gameplay

Add -lv to the launch options in Steam.  This enables low gore mode, which for some reason fixes the problem.  Low gore mode doesn't look as great, but it's worth it for the stability.