No Sound in HDMI, VIM1

Technical Support
1

Have tried nearly all Ubuntu destop emmc ROM, none can play video with sound via hdmi. Any suggestion?

Hardware: VIM1, HDMI monitor with speaker
ROM:
VIM_Ubuntu-mate-16.04_Linux-4.9_V170831
VIM1_Ubuntu-xenial_Linux-3.14_mate_arm64_EMMC_2018-05-31
Vim_Ubuntu-mate-16.04_Linux-4.9_V170605
VIM1_Ubuntu-xenial_Linux-4.9_mate_arm64_EMMC_2018-05-31
VIM1_Ubuntu-xfce-bionic_Linux-4.9_arm64_EMMC_V20181030
VIM1_Ubuntu-xfce-bionic_Linux-3.14_arm64_EMMC_V20181030

Played youtube video, yuku video, no problem for the visual, just no sound.

No sound problem for out-of-box android.

2

You meant that Android works but Ubuntu not, right?

Can you help to try with another monitor model?

It maybe compatible issue of some monitor models, can you show us the monitor model.

Good day!

3

Yes, pre-installed Android work, but not Ubuntu.

I did try connect it to a TV set, yes, it works. (VIM1_Ubuntu-xenial_Linux-4.9_mate_arm64_EMMC_2018-05-31). Thank you.

The model of the monitor is:
LG 25UM58
Resolution is 2560x1080

For your information, Pi running Ubuntu MATE support the monitor.

Is there any other method to get the sound direct from the board? e.g. from GPIO or USB.

It will be great if ubuntu support the higher resolution too, and Android does support.

Thanks a lot.

4

Yes, USB audio or I2S over the GPIO header also works out, but I think this issues still can be fixed by upgrade new ROM.

Can you kindly have a try the mainline Linux-4.19+ ROMs:
https://dl.khadas.com/Firmware/VIM1/Ubuntu/SD_USB/

Good day!

5

Thanks for your reply.

I follow the steps in:

after formatted the sd card, it prompts an error:

L(1005)aml_sdc_burn.UBOOT, and bootloader.PARTITION all not in pkg

I’ve tried the following ROMs
VIMs_Ubuntu-xfce-bionic_Linux-4.19_arm64_SD-USB_V20181030
VIMs_Ubuntu-xenial_Linux-4.9_mate_arm64_SD-USB_2018-05-31
VIMs_Ubuntu-xenial_Linux-3.14_mate_arm64_SD-USB_2018-05-31

Thanks