nvidia@tegra-ubuntu:/media/nvidia/BOOT/11111111/display port$ xxd /proc/device-tree/host1x/nvdisplay@15200000/status 
00000000: 6f6b 6179 00                             okay.
nvidia@tegra-ubuntu:/media/nvidia/BOOT/11111111/display port$ xxd /proc/device-tree/host1x/nvdisplay@15210000/status 
00000000: 6f6b 6179 00                             okay.
nvidia@tegra-ubuntu:/media/nvidia/BOOT/11111111/display port$ xxd /proc/device-tree/host1x/nvdisplay@15220000/status 
00000000: 6f6b 6179 00                             okay. 
nvidia@tegra-ubuntu:/media/nvidia/BOOT/11111111/display port$ xxd /proc/device-tree/host1x/sor/dp-display/status 
00000000: 6f6b 6179 00                             okay.
nvidia@tegra-ubuntu:/media/nvidia/BOOT/11111111/display port$ xxd /proc/device-tree/host1x/sor/status 
00000000: 6f6b 6179 00                             okay.
nvidia@tegra-ubuntu:/media/nvidia/BOOT/11111111/display port$ xxd /proc/device-tree/host1x/sor1/dp-display/status 
00000000: 6f6b 6179 00                             okay.
nvidia@tegra-ubuntu:/media/nvidia/BOOT/11111111/display port$ xxd /proc/device-tree/host1x/sor1/status
00000000: 6f6b 6179 00                             okay.
nvidia@tegra-ubuntu:/media/nvidia/BOOT/11111111/display port$