i.MX ProcessorsのトピックRe: IMX8EVK HDMI display example

IMX8EVK HDMI display example

lingguan — Wed, 12 Dec 2018 09:30:13 GMT

Hello,

I want to ask whether there are some examples to test imx8mqevk HDMI ? For example, showing some pictures or videos, or QT demo ?

Sincerely.

Re: IMX8EVK HDMI display example

joanxie — Mon, 17 Dec 2018 07:24:27 GMT

the default demo image supports HDMI directly, you can use mfgtool to download demo image to board then boot up, you can play video or somthing to the HDMI directly

Re: IMX8EVK HDMI display example

lingguan — Mon, 17 Dec 2018 14:01:49 GMT

Hi Joan Xie,

If I stop uboot, there are something displayed on the HDMI display. But when I start the linux, it's "no signal" on the display.

I use the image L4.9.51 and bitbake fsl-image-qt5-validation-imx-xwayland.

Re: IMX8EVK HDMI display example

joanxie — Wed, 19 Dec 2018 09:04:56 GMT

if you don't stop the uboot, the board can boot up successfully?

Re: IMX8EVK HDMI display example

lingguan — Wed, 19 Dec 2018 11:21:24 GMT

yeah, the board can auto boot up successfully.

Re: IMX8EVK HDMI display example

lingguan — Wed, 19 Dec 2018 14:01:03 GMT

Re: IMX8EVK HDMI display example

joanxie — Wed, 23 Jan 2019 08:55:11 GMT

have you fixed the issue?

Re: IMX8EVK HDMI display example

lingguan — Fri, 25 Jan 2019 07:25:38 GMT

Dear Xie,

No, I cannot solve the problem. I also try the 4.9.123 kernel, but no HDMI signal.

Sincerely.

Re: IMX8EVK HDMI display example

pavel_badin — Mon, 10 Jun 2019 12:41:47 GMT

Hello,

probably might be funny reason but on MEK CPU board there is no HDMI signal if the mouse/keyboard are not plugged into the USB connector. Just make sure it is not this reason :smileyhappy:

Re: IMX8EVK HDMI display example

joanxie — Fri, 28 Jun 2019 09:17:32 GMT

I haven't tested this version, but when I use UUU tool to program the newer yocto version, the image supports HDMI output as default

Re: IMX8EVK HDMI display example

lingguan — Fri, 28 Jun 2019 09:53:34 GMT

What is the yocto version? And what is the kernel version?

Thank you.

Re: IMX8EVK HDMI display example

joanxie — Mon, 01 Jul 2019 04:28:29 GMT

yocto 4.14.98