If the settings are unchanged and it's still not working, open your windows event viewer, on the left list click on Windows Logs, then double click on Application, this contains the error logs of your windows applications, the recent red 'Error' entry at the top should contain a log of left4dead2.exe, copy that log and paste it here please.įaulting application name: left4dead2.exe, version: 0.0.0.0, time stamp: 0x5f86244cįaulting module name: shaderapidx9.dll, version: 0.0.0.0, time stamp: 0x5f8624ccįaulting application start time: 0x01d6c92cdb292bbcįaulting application path: D:\SteamLibrary\steamapps\common\Left 4 Dead 2\left4dead2.exeįaulting module path: D:\SteamLibrary\steamapps\common\Left 4 Dead 2\bin\shaderapidx9.dll Can you try running Left 4 Dead 2 from /steamapps/common/Left 4 Dead 2/ directly and make sure left4dead2.exe isn't set to any compatibility mode or custom settings?