gistfile1.txt

$ optirun steam
double click W2
...
ERROR: ld.so: object '/home/me/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/me/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/me/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
** Message: window size should be 487x713
ERROR: ld.so: object '/home/me/.local/share/Steam/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
Setting breakpad minidump AppID = 20920
Steam_SetMinidumpSteamID: Caching Steam ID: 76561197982870345 [API loaded no]
X Error of failed request: BadWindow (invalid Window parameter)
Major opcode of failed request: 15 (X_QueryTree)
Resource id in failed request: 0x40000e
Serial number of failed request: 508
Current serial number in output stream: 508
witcher2: /home/jc/Development/Projects/eon2-witcher2/src/dlls/win32/kernel32/synchronisationPrimitives.cpp:700: void SignalObject(eON_HandleData*, DWORD): Assertion `twi->WaitResult == (HRESULT)(((DWORD)0xFFFFFFFF)-1)' failed.
Game removed: AppID 20920 "The Witcher 2: Assassins of Kings Enhanced Edition", ProcID 15011
...