Stuck at bad resolution

mhughson

Hi,

I changed my RetroPie to run at 640x480 (thinking this would be best since I am outputting via composite to a CRT), but after rebooting I am getting no video signal to the TV.

Is there a way to boot in safe mode or something along those lines so that I can restore the resolution back to the default (720x480 I believe)?

Thanks!

Pi Model or other hardware: 3
RetroPie Version Used (eg 3.6, 3.8.1, 4.1 - do not write latest): v4.4 – released April 14, 2018.
Built From: Pre made SD Image on RetroPie website
USB Devices connected: Keyboard, Gamepad, USB Stick

mitu

@mhughson How did you change the resolution ? If you modified the /boot/config.txt file, then just open the file on a PC and remove the resolution related lines.

mhughson

@mitu said in Stuck at bad resolution:

@mhughson How did you change the resolution ? If you modified the /boot/config.txt file, then just open the file on a PC and remove the resolution related lines.

I changed it through the RetroPie config menu.

mitu

@mhughson Can you post your /boot/config.txt file, surrounded by code blocks (```) ?

mhughson

@mitu Sure thing. Thanks for helping!

# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
disable_overscan=0

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
hdmi_group=2
hdmi_mode=4

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on

# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
dtparam=audio=on
gpu_mem_256=128
gpu_mem_512=256
gpu_mem_1024=256
#overscan_scale=1

mhughson

@mhughson said in Stuck at bad resolution:

> # uncomment if hdmi display is not detected and composite is being output
> hdmi_force_hotplug=1

After posting this, I noticed that line in the config, and it seemed odd. I commented it out (as I am using composite) and it is working again.

Thanks for the help!

mitu

@mhughson said in Stuck at bad resolution:

Thanks for the help!

I didn't do anything, but glad you got it sorted out !