Ubuntu 18.04.5 LTS jetsonnano ttyS0

jetsonnano login: blymo
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Last login: ▒.▒. ▒▒▒▒. 30 14:22:39 EEST 2020 on ttyS0
Welcome to Ubuntu 18.04.5 LTS (GNU/Linux 4.9.140-tegra aarch64)

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blymo@jetsonnano:~$ [   44.277448] edid invalid
[   44.423950] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   44.423970] tegradc tegradc.0: hdmi: set dc parent failed
[   44.424111] ------------[ cut here ]------------
[   44.424164] WARNING: CPU: 0 PID: 661 at /dvs/git/dirty/git-master_linux/kernel/nvidia/drivers/video/tegra/dc/clock.c:68 tegra_dc_setup_clk+0x94/0xa0
[   44.424742] ---[ end trace a5635e8b158db327 ]---
[   44.462348] tegradc tegradc.0: pclk out of range!
[   44.462351] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   44.462365] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed
[   44.568949] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   44.568955] tegradc tegradc.0: hdmi: set dc parent failed
[   44.599517] tegradc tegradc.0: pclk out of range!
[   44.599520] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   44.599534] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed
[   44.635261] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   44.635264] tegradc tegradc.0: hdmi: set dc parent failed
[   44.639950] tegradc tegradc.0: pclk out of range!
[   44.639953] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   44.639964] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed
[   51.589891] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   51.589929] tegradc tegradc.0: hdmi: set dc parent failed
[   51.614333] tegradc tegradc.0: pclk out of range!
[   51.614337] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   51.614352] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed
[   51.656451] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   51.656454] tegradc tegradc.0: hdmi: set dc parent failed
[   51.687030] tegradc tegradc.0: pclk out of range!
[   51.687033] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   51.687046] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed
[   51.719533] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   51.719537] tegradc tegradc.0: hdmi: set dc parent failed
[   51.724237] tegradc tegradc.0: pclk out of range!
[   51.724240] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   51.724253] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed
[   59.338348] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   59.338387] tegradc tegradc.0: hdmi: set dc parent failed
[   59.362430] tegradc tegradc.0: pclk out of range!
[   59.362434] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   59.362449] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed
[   59.401995] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   59.401998] tegradc tegradc.0: hdmi: set dc parent failed
[   59.432515] tegradc tegradc.0: pclk out of range!
[   59.432518] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   59.432532] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed
[   59.465519] tegra-dvfs: rate 768000000 too high for dvfs on disp1
[   59.465523] tegradc tegradc.0: hdmi: set dc parent failed
[   59.470459] tegradc tegradc.0: pclk out of range!
[   59.470463] tegradc tegradc.0: tegra_dc_init: tegra_dc_program_mode failed
[   59.470476] tegradc tegradc.0: _tegra_dc_controller_enable: tegra_dc_init failed