Using HDMI-VGA adapter with i.MX6Solo (Sabresd board)

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Using HDMI-VGA adapter with i.MX6Solo (Sabresd board)

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FlavioAlves
Contributor II

Hello,

I designed a single board computer based on Sabre-SD board. The processor is i.MX6 Solo.

The operating system is Debian (based on the image provided by Boundary Devices).

The kernel and u-boot are from Sabre-SD Yocto (fsl-community-bsp), kernel 4.1.15.

When I plug a HDMI or a DVI display on the CPU's HDMI output, it works fine.

But, when I try to plug a VGA display, using a HDMI-VGA adapter, I cannot see anything on the screen.

I used fbset command trying to change the screen resolution and also forcing screen resolution on u-boot console command line. In both case I got none results.

Is it really possible to use HDMI-VGA converters with i.MX6? Is there anything that must be done in kernel in order to have it running?

Best regards,

Flavio

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igorpadykov
NXP Employee
NXP Employee

Hi Flavio

there are restrictions for hdmi discussed on below links

iMX6Q AI board support for 1280×800 HDMI Display 

DVI Support on i.MX6 boards - Boundary Devices 

"True" HDMI display has special HDMI cable and

HDMI provides control lines (I2C) for configuring, audio, hot plugging.

Best regards
igor
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