MAMEWorld Forums - EmuChat - Unable to remove joystick deadzone

Greetings,
Have problems with the deadzone in Mame using Aimtrak light gun configured to joystick mode. Tried Mame 1.50 with several version of Linux (Kubuntu 12.10, 13.04, 13.10 in 64 and 32 bit and Fedora 16 64 bit). Tried it on three different computers (my laptop, desktop and media center PC). Also tried it it with several ROMs (Eggventure, Carnevil, Time Crisis and more). Have the same problem in all situations. Get close to the center line horizontally or vertically and it snaps to it until I move further away. The deadzone is not present when calibrating the joystick via the OS. The only part I don't know how to check is the SDL layer. Don't know if there are separate parameters for it or not.

Below is my mame.ini from "/etc/mame". Any assistance would be greatly appreciated. If anyone see anything that could be tweaked for video and audio performance feel free to correct me there, too.

One other question, can the mouse function be setup for absolute mode vice relative? If so, I can swithch the gun to mouse mode.

Thanks,
CannonFodderSE

#
# CORE CONFIGURATION OPTIONS
#
readconfig 1
writeconfig 0

#
# CORE SEARCH PATH OPTIONS
#
rompath
$HOME/mame/roms;/usr/local/share/games/mame/roms;/usr/share/games/mame/roms;~/mame/roms
hashpath /usr/share/games/mame/hash
samplepath
$HOME/mame/samples;/usr/local/share/games/mame/samples;/usr/share/games/mame/samples
artpath
$HOME/mame/artwork;/usr/local/share/games/mame/artwork;/usr/share/games/mame/artwork
ctrlrpath /etc/mame/ctrlr
inipath $HOME/.mame;/etc/mame
fontpath .
cheatpath
$HOME/mame/cheat;/usr/local/share/games/mame/cheat;/usr/share/games/mame/cheat
crosshairpath
$HOME/mame/crosshair;/usr/local/share/games/mame/crosshair;/usr/share/games/mame/crosshair

#
# CORE OUTPUT DIRECTORY OPTIONS
#
cfg_directory cfg
nvram_directory nvram
memcard_directory memcard
input_directory inp
state_directory sta
snapshot_directory snap
diff_directory diff
comment_directory comments

#
# CORE STATE/PLAYBACK OPTIONS
#
state
autosave 0
playback
record
mngwrite
aviwrite
wavwrite
snapname %g/%i
snapsize auto
snapview internal
statename %g
burnin 0

#
# CORE PERFORMANCE OPTIONS
#
autoframeskip 0
frameskip 0
seconds_to_run 0
throttle 1
sleep 1
speed 1.0
refreshspeed 0

#
# CORE ROTATION OPTIONS
#
rotate 1
ror 0
rol 0
autoror 0
autorol 0
flipx 0
flipy 0

#
# CORE ARTWORK OPTIONS
#
artwork_crop 0
use_backdrops 1
use_overlays 1
use_bezels 1
use_cpanels 1
use_marquees 1

#
# CORE SCREEN OPTIONS
#
brightness 1.0
contrast 1.0
gamma 1.0
pause_brightness 0.65
effect none

#
# CORE VECTOR OPTIONS
#
antialias 1
beam 1.0
flicker 0

#
# CORE SOUND OPTIONS
#
sound 1
samplerate 48000
samples 1
volume 0

#
# CORE INPUT OPTIONS
#
coin_lockout 1
ctrlr
mouse 0
joystick 1
lightgun 0
dual_lightgun 0
multikeyboard 0
multimouse 0
steadykey 0
ui_active 0
offscreen_reload 0
joystick_map auto
joystick_deadzone 0
joystick_saturation 1
natural 0
joystick_contradictory 0
coin_impulse 0

#
# CORE INPUT AUTOMATIC ENABLE OPTIONS
#
paddle_device keyboard
adstick_device keyboard
pedal_device keyboard
dial_device keyboard
trackball_device keyboard
lightgun_device joystick
positional_device keyboard
mouse_device mouse

#
# CORE DEBUGGING OPTIONS
#
log 0
verbose 0
update_in_pause 0
debug 0
debugscript
debug_internal 0

#
# CORE MISC OPTIONS
#
bios
cheat 0
skip_gameinfo 0
uifont default
ramsize
confirm_quit 0
ui_mouse 0
autoboot_command
autoboot_delay 2
autoboot_script

#
# DEBUGGING OPTIONS
#
oslog 1
watchdog 1

#
# PERFORMANCE OPTIONS
#
multithreading 1
numprocessors auto
sdlvideofps 1
bench 0

#
# VIDEO OPTIONS
#
video opengl16
numscreens 1
window 0
maximize 1
keepaspect 1
unevenstretch 1
centerh 1
centerv 1
waitvsync 1
syncrefresh 1
scalemode none

#
# OpenGL-SPECIFIC OPTIONS
#
filter 1
prescale 1
gl_forcepow2texture 0
gl_notexturerect 1
gl_vbo 1
gl_pbo 1
gl_glsl 1
gl_glsl_filter 1
glsl_shader_mame0 none
glsl_shader_mame1 none
glsl_shader_mame2 none
glsl_shader_mame3 none
glsl_shader_mame4 none
glsl_shader_mame5 none
glsl_shader_mame6 none
glsl_shader_mame7 none
glsl_shader_mame8 none
glsl_shader_mame9 none
glsl_shader_screen0 none
glsl_shader_screen1 none
glsl_shader_screen2 none
glsl_shader_screen3 none
glsl_shader_screen4 none
glsl_shader_screen5 none
glsl_shader_screen6 none
glsl_shader_screen7 none
glsl_shader_screen8 none
glsl_shader_screen9 none
gl_glsl_vid_attr 1

#
# PER-WINDOW VIDEO OPTIONS
#
screen auto
aspect auto
resolution auto
view auto
screen0 auto
aspect0 auto
resolution0 auto
view0 auto
screen1 auto
aspect1 auto
resolution1 auto
view1 auto
screen2 auto
aspect2 auto
resolution2 auto
view2 auto
screen3 auto
aspect3 auto
resolution3 auto
view3 auto

#
# FULL SCREEN OPTIONS
#
switchres 1
useallheads 0

#
# SOUND OPTIONS
#
audio_latency 2

#
# SDL KEYBOARD MAPPING
#
keymap 0
keymap_file keymap.dat
uimodekey SCRLOCK

#
# SDL JOYSTICK MAPPING
#
joy_idx1 auto
joy_idx2 auto
joy_idx3 auto
joy_idx4 auto
joy_idx5 auto
joy_idx6 auto
joy_idx7 auto
joy_idx8 auto
sixaxis 0

#
# SDL LOWLEVEL DRIVER OPTIONS
#
videodriver auto
audiodriver auto
gl_lib auto

skip_gameinfo 1