1. # For more options and information see
2. # http://rpf.io/configtxt
3. # Some settings may impact device functionality. See link above for details
4.  
5. # uncomment if you get no picture on HDMI for a default "safe" mode
6. #hdmi_safe=1
7.  
8. # uncomment this if your display has a black border of unused pixels visible
9. # and your display can output without overscan
10. #disable_overscan=1
11.  
12. # uncomment the following to adjust overscan. Use positive numbers if console
13. # goes off screen, and negative if there is too much border
14. #overscan_left=16
15. #overscan_right=16
16. #overscan_top=16
17. #overscan_bottom=16
18.  
19. # uncomment to force a console size. By default it will be display's size minus
20. # overscan.
21. #framebuffer_width=1280
22. #framebuffer_height=720
23.  
24. # uncomment if hdmi display is not detected and composite is being output
25. #hdmi_force_hotplug=1
26.  
27. # uncomment to force a specific HDMI mode (this will force VGA)
28. #hdmi_group=1
29. #hdmi_mode=1
30.  
31. # uncomment to force a HDMI mode rather than DVI. This can make audio work in
32. # DMT (computer monitor) modes
33. #hdmi_drive=2
34.  
35. # uncomment to increase signal to HDMI, if you have interference, blanking, or
36. # no display
37. #config_hdmi_boost=4
38.  
39. # uncomment for composite PAL
40. #sdtv_mode=2
41.  
42. #uncomment to overclock the arm. 700 MHz is the default.
43. #arm_freq=800
44.  
45. # Uncomment some or all of these to enable the optional hardware interfaces
46. #dtparam=i2c_arm=on
47. #dtparam=i2s=on
48. #dtparam=spi=on
49.  
50. # Uncomment this to enable infrared communication.
51. #dtoverlay=gpio-ir,gpio_pin=17
52. #dtoverlay=gpio-ir-tx,gpio_pin=18
53.  
54. # Additional overlays and parameters are documented /boot/overlays/README
55.  
56. # Enable audio (loads snd_bcm2835)
57. dtparam=audio=on
58.  
59. [pi4]
60. # Enable DRM VC4 V3D driver on top of the dispmanx display stack
61. dtoverlay=vc4-fkms-v3d
62. max_framebuffers=2
63.  
64. [all]
65. #dtoverlay=vc4-fkms-v3d
66. gpu_mem_256=128
67. gpu_mem_512=256
68. gpu_mem_1024=256
69. overscan_scale=1
70.  
71. rotate_display=1
72.