localhost sdlmame # cat /etc/games/sdlmame/mame.ini
#
# CORE CONFIGURATION OPTIONS
#
readconfig                1
writeconfig               0

#
# CORE SEARCH PATH OPTIONS
#
rompath                   /mnt/music/roms/mame

four@localhost ~ $ lr /mnt/music/roms/mame
total 4.9G
drwxr-xr-x 2 root root  4.0K Mar 28 22:17 .
drwxrwxr-x 6 root users 4.0K Apr  6 20:54 ..
-rw-r----- 1 four users 1.8G Mar 28 02:50 MAME_0.149_ROMs.zip
-rw-r----- 1 four users 417M Mar 28 15:07 MESS-0.149.BIOS.ROMs.zip
-rw-r----- 1 four users 2.8G Mar 28 17:39 MESS_0.149_EXTRAs.zip
-rw-r----- 1 four users 3.9M Mar 27 22:32 cybsled.zip
-rw-r----- 1 four users 5.1M Mar 28 22:12 miexchng.zip
-rw-r----- 1 four users 1.4M Mar 28 22:12 neogeo.zip
-rw-r----- 1 four users 469K Mar 28 22:11 offroad.zip
four@localhost ~ $ 

four@localhost ~/.sdlmame/cfg $ sdlmame -v
Available videodrivers: x11 dummy 
Current Videodriver: x11
	Display #0
		Renderdrivers:
			    opengl (0x0)
			  software (0x0)
Available audio drivers: 
	alsa                
	disk                
	dummy               
Build version:      0.159 (Apr  7 2015)
Build architecure:  SDLMAME_ARCH= 
Build defines 1:    SDLMAME_UNIX=1 SDLMAME_X11=1 SDLMAME_LINUX=1 
Build defines 1:    LSB_FIRST=1 PTR64=1 DISTRO=generic SYNC_IMPLEMENTATION=tc 
SDL/OpenGL defines: SDL_COMPILEDVERSION=2003 USE_OPENGL=1 USE_DISPATCH_GL=1 
Compiler defines A: __GNUC__=4 __GNUC_MINOR__=7 __GNUC_PATCHLEVEL__=3 __VERSION__="4.7.3" 
Compiler defines B: __amd64__=1 __x86_64__=1 __unix__=1 
Compiler defines C: __USE_FORTIFY_LEVEL=0 
Enter init_monitors
Adding monitor screen0 (1920 x 1080)
Leave init_monitors
Enter sdlwindow_init
Using SDL multi-window soft driver (SDL 2.0+)

Hints:
	SDL_FRAMEBUFFER_ACCELERATION             (null)
	SDL_RENDER_DRIVER                        (null)
	SDL_RENDER_OPENGL_SHADERS                (null)
	SDL_RENDER_SCALE_QUALITY                 (null)
	SDL_RENDER_VSYNC                         (null)
	SDL_VIDEO_X11_XVIDMODE                   (null)
	SDL_VIDEO_X11_XINERAMA                   (null)
	SDL_VIDEO_X11_XRANDR                     (null)
	SDL_GRAB_KEYBOARD                        (null)
	SDL_VIDEO_MINIMIZE_ON_FOCUS_LOSS         (null)
	SDL_IOS_IDLE_TIMER_DISABLED              (null)
	SDL_IOS_ORIENTATIONS                     (null)
	SDL_XINPUT_ENABLED                       (null)
	SDL_GAMECONTROLLERCONFIG                 (null)
	SDL_JOYSTICK_ALLOW_BACKGROUND_EVENTS     (null)
	SDL_ALLOW_TOPMOST                        (null)
	SDL_TIMER_RESOLUTION                     (null)
	SDL_RENDER_DIRECT3D_THREADSAFE           (null)
	SDL_VIDEO_ALLOW_SCREENSAVER              (null)
	SDL_ACCELEROMETER_AS_JOYSTICK            (null)
	SDL_MAC_CTRL_CLICK_EMULATE_RIGHT_CLICK   (null)
	SDL_VIDEO_WIN_D3DCOMPILER                (null)
	SDL_VIDEO_WINDOW_SHARE_PIXEL_FORMAT      (null)
	SDL_VIDEO_MAC_FULLSCREEN_SPACES          (null)
	SDL_MOUSE_RELATIVE_MODE_WARP             (null)
	SDL_HINT_RENDER_DIRECT3D11_DEBUG         (null)
	SDL_VIDEO_HIGHDPI_DISABLED               (null)
	SDL_HINT_WINRT_PRIVACY_POLICY_URL        (null)
	SDL_HINT_WINRT_PRIVACY_POLICY_LABEL      (null)
	SDL_HINT_WINRT_HANDLE_BACK_BUTTON        (null)
Leave sdlwindow_init