Working log (with a wad in a spaceless path, "/home/user/doom_wads/AAK_WAQ.WAD")
------------------------------------------------------------------------------
 
                         Chocolate Doom 2.3.0
Z_Init: Init zone memory allocation daemon.
zone memory: 0x7f9fa35e4010, 1000000 allocated for zone
Using /home/user/.chocolate-doom/ for configuration and saves
V_Init: allocate screens.
M_LoadDefaults: Load system defaults.
saving config in /home/user/.chocolate-doom/default.cfg
W_Init: Init WADfiles.
 adding /home/user/.config/gzdoom/DOOM2.WAD
 adding /home/user/doom_wads/AAK_WAQ.WAD
===========================================================================
                         DOOM 2: Hell on Earth
===========================================================================
 Chocolate Doom is free software, covered by the GNU General Public
 License.  There is NO warranty; not even for MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE. You are welcome to change and distribute
 copies under certain conditions. See the source for more information.
===========================================================================
I_Init: Setting up machine state.
Failed to get I/O port permissions for 0x388: Operation not permitted
    You may need to run the program as root in order
    to acquire I/O port permissions for OPL MIDI playback.
OPL_Init: Using driver 'SDL'.
NET_Init: Init network subsystem.
M_Init: Init miscellaneous info.
R_Init: Init DOOM refresh daemon - [......................................]
P_Init: Init Playloop state.
S_Init: Setting up sound.
D_CheckNetGame: Checking network game status.
startskill 2  deathmatch: 0  startmap: 1  startepisode: 1
player 1 of 1 (1 nodes)
Emulating the behavior of the 'Doom 1.9' executable.
HU_Init: Setting up heads up display.
ST_Init: Init status bar.
I_InitGraphics: Windowboxed (960x720 within 1366x768)
I_InitStretchTables: Generating lookup tables....
-------------------------------------------------------------------------------
 
The not working one (with a wad in a path that has space, "/home/user/doom wads/AAK_WAQ.WAD")
----------------------------------------------------------------------------------------------
                         Chocolate Doom 2.3.0
Z_Init: Init zone memory allocation daemon.
zone memory: 0x7fd447aee010, 1000000 allocated for zone
Using /home/user/.chocolate-doom/ for configuration and saves
V_Init: allocate screens.
M_LoadDefaults: Load system defaults.
saving config in /home/user/.chocolate-doom/default.cfg
W_Init: Init WADfiles.
 adding /home/user/.config/gzdoom/DOOM2.WAD
 adding "/home/user/doom wads/AAK_WAQ.WAD"
 couldn't open "/home/user/doom wads/AAK_WAQ.WAD"
===========================================================================
                         DOOM 2: Hell on Earth
===========================================================================
 Chocolate Doom is free software, covered by the GNU General Public
 License.  There is NO warranty; not even for MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE. You are welcome to change and distribute
 copies under certain conditions. See the source for more information.
===========================================================================
I_Init: Setting up machine state.
Failed to get I/O port permissions for 0x388: Operation not permitted
    You may need to run the program as root in order
    to acquire I/O port permissions for OPL MIDI playback.
OPL_Init: Using driver 'SDL'.
NET_Init: Init network subsystem.
M_Init: Init miscellaneous info.
R_Init: Init DOOM refresh daemon - [......................................]
P_Init: Init Playloop state.
S_Init: Setting up sound.
D_CheckNetGame: Checking network game status.
startskill 2  deathmatch: 0  startmap: 1  startepisode: 1
player 1 of 1 (1 nodes)
Emulating the behavior of the 'Doom 1.9' executable.
HU_Init: Setting up heads up display.
ST_Init: Init status bar.
I_InitGraphics: Windowboxed (960x720 within 1366x768)
I_InitStretchTables: Generating lookup tables....