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[solved] Can not output HDMI to the monitor


Soichi

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Hello everybody. Faced such a problem. When connecting to the HDMI port of the monitor, no image is displayed on the monitor. More precisely, the line at boot time is visible, but the desktop is not displayed. If you connect to a TV via HDMI port, there is an image. I connect OrangePi Plus 2, via HDMI-HDMI cable. Monitor LG FLATRON 27EA33V-BB. Why is that such a problem on armbian and retroorange assemblies. But the assembly of DietPi on the monitor image displays .. The systemist under win7 also without any problems displays the image always.

Tell me where to find the solution to the problem.

I tried changing the modes with the 'h3disp' utility. Screenshot - https://yadi.sk/i/g2G5Dhvv3TmZw9
Tried and 1080i60 and 1080i60 and other permits. Also tried the hdmi-to-dvi converter mode to include. And the color-range was changing, the result is the same. As for the video signal level, I do not know where to look, maybe in script.bin?
That way even noticed when sending orangepi to reboot via sudo reboot, switch to the monitor can sometimes see the command line in the foreground and in the background RetrOrangePi menu .. managed to photograph - https://yadi.sk/d/Yn0XRNzL3TmgbH

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4 minutes ago, Soichi said:

With 'Armbian_5.38_Orangepiplus_Ubuntu_xenial_default_3.4.113_desktop' the same problem.
Output to hdmi TV without problems, but if switch cable in hdmi monitor not output.


1080p60 should work on that TV if your cable is O.K. 

Have you tried the image with a modern kernel? I am particularly interested if you have problems or not with "Debian server – mainline kernel" Do you boot with cable attached or you attach it later. Try both and try another cable if possible.

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The problem is solved. As it turned out, it was in a cheap HDMI cable bought in Leroy Merlin. It was enough to display the image on the TV, but the monitor did not show anything. I found a different cable, connected it and it all worked.
I am sorry to bother you.

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