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HDMI->DVI no output on monitor


ranza
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Hi! 

I'm having trouble with hdmi display and armbian focal on rock64.

All works with simple office hdmi displays but fails with an open frame display connected using hdmi->dvi cable.

Even the boot messages do not display and the display goes into power saving mode.

 

Here are some of the outputs:

rock64@rock64:~$ cat /sys/class/drm/card0/card0-HDMI-A-1/status
connected
rock64@rock64:~$ cat /sys/class/drm/card0-HDMI-A-1/status
connected

 

rock64@rock64:~$  dmesg | grep hdmi
[    4.484419] dwhdmi-rockchip ff3c0000.hdmi: Detected HDMI TX controller v2.11a with HDCP (inno_dw_hdmi_phy2)
[    4.485826] dwhdmi-rockchip ff3c0000.hdmi: registered DesignWare HDMI I2C bus driver
[    4.487156] rockchip-drm display-subsystem: bound ff3c0000.hdmi (ops dw_hdmi_rockchip_ops [rockchipdrm])
[   10.354029] rc rc1: dw_hdmi as /devices/platform/ff3c0000.hdmi/rc/rc1
[   10.354226] input: dw_hdmi as /devices/platform/ff3c0000.hdmi/rc/rc1/input5
[   10.973383] hdmi-audio-codec hdmi-audio-codec.4.auto: ASoC: error at snd_soc_component_of_xlate_dai_id on hdmi-audio-codec.4.auto: -22
rock64@rock64:~$  lsmod | grep hdmi
snd_soc_hdmi_codec     20480  1
dw_hdmi_cec            16384  0
dw_hdmi_i2s_audio      16384  0
snd_soc_core          237568  7 snd_soc_spdif_tx,snd_soc_hdmi_codec,snd_soc_rockchip_spdif,snd_soc_audio_graph_card,snd_soc_rk3328,snd_soc_simple_card_utils,snd_soc_rockchip_i2s
snd_pcm               118784  3 snd_soc_hdmi_codec,snd_soc_core,snd_pcm_dmaengine
snd                    90112  4 snd_soc_hdmi_codec,snd_timer,snd_soc_core,snd_pcm
dw_hdmi                53248  2 dw_hdmi_i2s_audio,rockchipdrm
drm_kms_helper        245760  4 dw_mipi_dsi,rockchipdrm,dw_hdmi,analogix_dp
cec                    73728  3 drm_kms_helper,dw_hdmi_cec,dw_hdmi
drm                   573440  8 gpu_sched,drm_kms_helper,dw_mipi_dsi,lima,rockchipdrm,dw_hdmi,analogix_dp
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