# have a properly sized image
disable_overscan=1

# for sound over HDMI
hdmi_drive=2

# Enable audio (loads snd_bcm2835)
dtparam=audio=on

# gpu_mem is for closed-source driver only; since we are only using the
# open-source driver here, set low
gpu_mem=16

# as we don't use default kernel names, we must set 64 bit mode.
arm_control=0x200


# we should really use our own device tree names
# as there is confusion between 32 and 64 bit varients
device_tree=bcm2710-rpi-3-b.dtb

# kernels ... choose 1 :)
# 4.9 seems to have broken sound.
#kernel=pi_4.9.53-v8+

#kernel=pi_4.10.17-v8+

#kernel=kernel-4.15.y
#kernel=skinny_4.10.y
kernel=rpi-4.14.y

# kernels below here are broken with dtoverlay=vc4-fkms-v3d, so comment it out below
# or your console will vanish

#kernel=pi_4.12.11-v8+
#kernel=pi_4.14.0-rc2-v8+

# lets have the VC4 hardware accelerated video
# but only with some kernels

#####################################################################
#### Some Big Builds need the CMA region so turm it off for them ####
#####################################################################
dtoverlay=vc4-fkms-v3d
# for the vc4 driver
avoid_warnings=2


#over_voltage	CPU/GPU core voltage adjustment. [-16,8] equates to [0.8V,1.4V] with 0.025V steps. 
#		In other words, specifying -16 will give 0.8V as the GPU/core voltage, and specifying 8 will give 1.4V. 
#		For defaults see table below. Values above 6 are only allowed when force_turbo is specified: this sets the warranty bit if over_voltage_* is also set.
#over_voltage_sdram	Sets over_voltage_sdram_c, over_voltage_sdram_i, and over_voltage_sdram_p together.
#over_voltage_sdram_c	SDRAM controller voltage adjustment. [-16,8] equates to [0.8V,1.4V] with 0.025V steps. The default value is 0 (1.2V).
#over_voltage_sdram_i	SDRAM I/O voltage adjustment. [-16,8] equates to [0.8V,1.4V] with 0.025V steps. The default value is 0 (1.2V).
#over_voltage_sdram_p	SDRAM phy voltage adjustment. [-16,8] equates to [0.8V,1.4V] with 0.025V steps. The default value is 0 (1.2V).

#seems to help stability
over_voltage=2