Resolution switching (updated w/ confg file)
Posted: Thu Nov 13, 2025 5:55 pm
Hello.
I have been using my ArPiCADE with a HD LCD monitor (via VGA) in a Sega Astro City.
I have it moved over to a Dynamo cabinet with a Wells-Gardner D9200 arcade monitor (connected via VGA)- 600x480.
Everything loads up (menu, games, etc), but I noticed that it is switching resolutions when specific games load up. Games like NBA JAM & Mortal Kombat will load up but are off center (half of the screen is missing). I'm guessing this is due to loading up in a different resolution.
Is there a way that I can have all games boot in the same resolution and also have the menu use that specific resolution as well?
I have messed around with the config file, but nothing that I do seems to fix the issue.
This is how my CONFIG.TXT file looks...
# For more options and information see
# http://www.raspberrypi.org/documentatio ... fig-txt.md
# Some settings may impact device functionality. See link above for details
# disable Rpi rainbow splash
disable_splash=1
# Comment/uncommment to flip the image to account for monitor mounting
# this is a 180 degree flip NOT hori/vert mounting
# (see bottom of file for horizontal/vertical mount option)
#display_rotate=2
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# make sure the pi outputs to correct scanlines without overscan
# use this even when playing with overscan settings for best results
# on CRT monitors always use this setting
disable_overscan=1
overscan_scale=1
# uncomment the following to adjust overscan / picture position. Use positive
# numbers if console goes off screen, and negative if there is too much border
# also use overscan_scale so the emulators comply & still use disable_overscan
# do not adjust top and bottom or you will loose scanline perfect output although
# you can move the picture up or down evenly with okay-ish results better not to
overscan_left=33
overscan_right=32
##overscan_top=4
##overscan_bottom=-4
# ignore edid - we just want video output to do as we say anyway
hdmi_ignore_edid=0xa5000080
# force hdmi output
hdmi_force_hotplug=1
# uncomment to force a HDMI mode rather than DVI so audio works
hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
config_hdmi_boost=6
# use full spectrum RGB over HDMI
hdmi_pixel_encoding=2
## PLEASE NOTE: due to the resolution switching launcher scripts changes made
## in this section are at your own risk, 480i is default for this build
# Use group 1, only change the mode. For Group 1 Mode 8 is 720x240,
# Mode 6 is 720x480i & Mode 1 is 640x480p. Any mode except 1, 6 and 8
# may have unexpected behaviour (see /boot/launchers/resSwitch.sh)
hdmi_group=1
## Use only one mode at a time
# Boot and menus in 480i (rotated games in 480i, non rotated games in 240p/256p/288p)
#hdmi_mode=6
# Boot and menus in 240p (all games in 240p/256p/288p)
#hdmi_mode=8
# Boot and menus in 480p (no res switching, just 480p)
hdmi_mode=1
# Increase gpu mem for complex Attract-Mode themes to work properly
gpu_mem=256
#gpu_mem=128
# Uncomment to overclock RPi2
#arm_freq=1000
#sdram_freq=500
#core_freq=500
#over_voltage=2
#temp_limit=80 #Will throttle to default clock speed if hit.
# Experimental RPi3 overclocking - reported stable, you may want a heatsink
# the 1A fuse on a RaspberryJAMMA can be safely upgraded to a 2.5A fuse for RPi3
# and probably should be for overclocking
#arm_freq=1350
#over_voltage=4
#sdram_freq=550
#core_freq=550
#gpu_freq=550
#temp_limit=80 #Will throttle to default clock speed if hit.
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
# Additional overlays and parameters are documented /boot/overlays/README
# Experimental keyboard based JAMMA controls - no working hotkeys system currently
#dtoverlay=raspberryjamma
# I need to test these
#disable wifi
#dtoverlay=pi3-disable-wifi
#disable bluetooth
#pi3-disable-bt
# Extra settings for ARpiCADE do not unhash these settings to use them
# Really, DO NOT UNHASH THESE SETTINGS they are not RPi boot settings and need to
# be hashed out exactly as is to work properly.
# to set vertically mounted monitor make this =1 but LEAVE THE LINE HASHED OUT
# just add (or remove) the 1
#monitor_mount=
Any help is greatly appreciated.
I have been using my ArPiCADE with a HD LCD monitor (via VGA) in a Sega Astro City.
I have it moved over to a Dynamo cabinet with a Wells-Gardner D9200 arcade monitor (connected via VGA)- 600x480.
Everything loads up (menu, games, etc), but I noticed that it is switching resolutions when specific games load up. Games like NBA JAM & Mortal Kombat will load up but are off center (half of the screen is missing). I'm guessing this is due to loading up in a different resolution.
Is there a way that I can have all games boot in the same resolution and also have the menu use that specific resolution as well?
I have messed around with the config file, but nothing that I do seems to fix the issue.
This is how my CONFIG.TXT file looks...
# For more options and information see
# http://www.raspberrypi.org/documentatio ... fig-txt.md
# Some settings may impact device functionality. See link above for details
# disable Rpi rainbow splash
disable_splash=1
# Comment/uncommment to flip the image to account for monitor mounting
# this is a 180 degree flip NOT hori/vert mounting
# (see bottom of file for horizontal/vertical mount option)
#display_rotate=2
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# make sure the pi outputs to correct scanlines without overscan
# use this even when playing with overscan settings for best results
# on CRT monitors always use this setting
disable_overscan=1
overscan_scale=1
# uncomment the following to adjust overscan / picture position. Use positive
# numbers if console goes off screen, and negative if there is too much border
# also use overscan_scale so the emulators comply & still use disable_overscan
# do not adjust top and bottom or you will loose scanline perfect output although
# you can move the picture up or down evenly with okay-ish results better not to
overscan_left=33
overscan_right=32
##overscan_top=4
##overscan_bottom=-4
# ignore edid - we just want video output to do as we say anyway
hdmi_ignore_edid=0xa5000080
# force hdmi output
hdmi_force_hotplug=1
# uncomment to force a HDMI mode rather than DVI so audio works
hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
config_hdmi_boost=6
# use full spectrum RGB over HDMI
hdmi_pixel_encoding=2
## PLEASE NOTE: due to the resolution switching launcher scripts changes made
## in this section are at your own risk, 480i is default for this build
# Use group 1, only change the mode. For Group 1 Mode 8 is 720x240,
# Mode 6 is 720x480i & Mode 1 is 640x480p. Any mode except 1, 6 and 8
# may have unexpected behaviour (see /boot/launchers/resSwitch.sh)
hdmi_group=1
## Use only one mode at a time
# Boot and menus in 480i (rotated games in 480i, non rotated games in 240p/256p/288p)
#hdmi_mode=6
# Boot and menus in 240p (all games in 240p/256p/288p)
#hdmi_mode=8
# Boot and menus in 480p (no res switching, just 480p)
hdmi_mode=1
# Increase gpu mem for complex Attract-Mode themes to work properly
gpu_mem=256
#gpu_mem=128
# Uncomment to overclock RPi2
#arm_freq=1000
#sdram_freq=500
#core_freq=500
#over_voltage=2
#temp_limit=80 #Will throttle to default clock speed if hit.
# Experimental RPi3 overclocking - reported stable, you may want a heatsink
# the 1A fuse on a RaspberryJAMMA can be safely upgraded to a 2.5A fuse for RPi3
# and probably should be for overclocking
#arm_freq=1350
#over_voltage=4
#sdram_freq=550
#core_freq=550
#gpu_freq=550
#temp_limit=80 #Will throttle to default clock speed if hit.
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
# Additional overlays and parameters are documented /boot/overlays/README
# Experimental keyboard based JAMMA controls - no working hotkeys system currently
#dtoverlay=raspberryjamma
# I need to test these
#disable wifi
#dtoverlay=pi3-disable-wifi
#disable bluetooth
#pi3-disable-bt
# Extra settings for ARpiCADE do not unhash these settings to use them
# Really, DO NOT UNHASH THESE SETTINGS they are not RPi boot settings and need to
# be hashed out exactly as is to work properly.
# to set vertically mounted monitor make this =1 but LEAVE THE LINE HASHED OUT
# just add (or remove) the 1
#monitor_mount=
Any help is greatly appreciated.