here is my config.txt
For more options and information see http://rptl.io/configtxt Some settings may impact device functionality. See link above for details Uncomment some or all of these to enable the optional hardware interfaces#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
dtparam=audio=on
Pretends no audio formats are supported by HDMI display, forcing all sound out the 3.5mm headphone jack. May not be needed for all HDMI deviceshdmi_ignore_edid_audio=1
forces HDMI modehdmi_drive=2
#kernel
kernel=kernel8.img
#camera_auto_detect=1
Automatically load overlays for detected DSI displays#display_auto_detect=1
Automatically load initramfs files, if foundauto_initramfs=1
#hdmi
#resolution
framebuffer_width=1920
framebuffer_height=1080
hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=82
dtoverlay=vc4-kms-v3d
max_framebuffers=2
disable_fw_kms_setup=1
Run in 64-bit modearm_64bit=1
Disable compensation for displays with overscan#disable_overscan=1
Run as fast as firmware / board allowsarm_boost=1
[cm4]
Enable host mode on the 2711 built-in XHCI USB controller. This line should be removed if the legacy DWC2 controller is required (e.g. for USB device mode) or if USB support is not required.#otg_mode=1
[cm5]
#dtoverlay=dwc2,dr_mode=host
[all]