Forum › Cases › Display not working on Pi 4G-IOT

thanh_tan post at 2018-9-3 20:19:26

Also looking for the solution of this case

sk21 post at 2018-9-7 15:02:04

I bought a Orange PI 4G-IOT but as we know HDMI is working weird. But I was able to connect one monitor to it.
Then I bought a LCD, but it that didn't work (there was a white screen when turned on). The seller on Aliexpress prompted to update the firmware, that I did, and the LCD worked. But now has stopped working HDMI! Absolutely! (I tried Android 6 and 8).
Prompt where to take a old firmware with the working 48Hz HDMI?

sk21 post at 2018-9-14 15:09:38

I had HDMI working on one of the monitors. I just changed the firmware to the one that is posted in Downloads. It doesn't work after that. Previously, monitors wrote that "format is not supported", now simply "no signal".

thanh_tan post at 2018-9-20 12:12:33

sk21 replied at 2018-9-14 14:09
I had HDMI working on one of the monitors. I just changed the firmware to the one that is posted in...

Do you use the 5.5inch display come with the 4G-IOT?

in my case, i need two display working together, 5.5inch and HDMI

sk21 post at 2018-9-20 20:50:23

thanh_tan replied at 2018-9-20 12:12
Do you use the 5.5inch display come with the 4G-IOT?

in my case, i need two display working toget ...

Yes, I use the 5.5inch display. But for some projects I also need HDMI. And such firmware where LCD and HDMI work at the same time I did not meet.

svensly post at 2018-9-21 05:03:53

Maybe the resolution is set in the device tree file

sk21 post at 2018-10-18 18:27:10

Prompt the modern monitor working with HDMI? I tried IIYAMA GE2288HS, on the website AMD in the list of monitors with FreeSync this model declared work from 47 Hz. But it did not work, maybe need something else to work FreeSync.

Bunyu post at 2018-11-8 05:43:26

It's not a configuration issue. Thebridge driver(LT8912b) is not completed at all. It's just a bunch off useless letters after each other nothing more. I have a driver for it , but nowdays i don't have the time to implement it in the kernel.It's only works with 3.18. The 4.4 not supported by this Mediatek chip. I tried to complie once I think and the kernel is missing a tons of files. If anyone have the patient and time. Feel free to download and use it.

Vladimir75 post at 2019-2-14 01:03:57

Has anyone tried to connect hdmi output via hdmi-vga adapter?

san4jkee post at 2023-8-11 17:49:05

Please prompt. Installed Ubuntu on Orange Pi 4g-iot, but hdmi still does not work. Tried 2 monitors and 1 TV.

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