DP &HDMI Dual output

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hi NV people

i use dp monitor and hdmi monitor to connect my nano.
but it can’t work on dual monitor.
in the boot time i can see the boot message on hdmi monitor.
after boot up i can see the GUI only on DP monitor.

2

Hi etta,

Can display work if you plug them separately?

case1. only HDMI
case2. only DP
case3. connect HDMI first/ then DP and vice versa. (after boot up)
case4. both connected before boot up.

3

Hi WayneWWW

case1. it can work

case2. it can work

case3. after connect DP monitor, the hdmi will no signal output. the GUI will change to DP port.

case4. login gui will show on hdmi monitor , but after login the hdmi will no signal output

Did DP and HDMI can work work on same time?

4

You could try to share the kernel log of case 3.

But it does not sound like a software issue since single monitor case can work. Could you share the spec of your power adapter?

5

Hi etta,

Is this still an issue to support? Any result can be shared?

Thanks

6

Hi kayccc

after i rebuild the kernel it can support DP and hdmi.