config.txt

pi@raspberrypi:~ $ cat /boot/config.txt
# For more options and information see
# http://www.raspberrypi.org/documentation/configuration/config-txt.md
# 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=1

# 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=1
#hdmi_mode=1

# 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=i2c_arm=on,i2c_arm_baudrate=32000
dtoverlay=i2c-bcm2708
#dtoverlay=i2c0-bcm2708
#dtoverlay=i2c1-bcm2708
#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
enable_uart=1

# Uncomment this to enable the UPS PIco IR receiver
dtoverlay=lirc-rpi:gpio_in_pin=18,gpio_in_pull=down

# Uncomment this to enable the UPS PIco RTC
dtoverlay=i2c-rtc,ds1307

arm_freq=1000
sdram_freq=483
core_freq=500
h264_freq=500
isp_freq=500
v3d_freq=500

over_voltage=4
over_voltage_sdram=2

avoid_pwm_pll=1

max_usb_current=1
temp_limit=83

gpu_mem=128

# 2B video codec license keys
decode_MPG2=0x80f8bb6f
decode_WVC1=0x67e83499