i.MX ProcessorsのトピックHDMI input signal display quater screen when using MIPI interface.

HDMI input signal display quater screen when using MIPI interface.

younhawoo — Wed, 15 Oct 2014 08:55:02 GMT

Dear, Freescale,

I develop HDMI input driver for ADV7481(HDMI receiver).

Freescale cpu : i.mx6 dual

setting resolution : 720 x 480 480p

pixel format : V4L2_PIX_FMT_UYVY, YUV422 8bit

HDMI device : iPhone, SAMSUNG Galaxy 3 and 4.

When I check LCD, it displayed quarter screen as attachment file.

So, I change resolution and pixel format but I check same screen.

For test, when I use CSI interface it displayed normal screen.

And, I use iphone 5s for checking HDMI because, galaxy 3 and 4 didn't display screen.

When I use iphone, it displayed quarter screen.

Also, When I use Android pad, it displayed quarter screen.

Thank you,

joanxie — Mon, 03 Nov 2014 06:54:57 GMT

what driver did you use? maybe you can refer to the steps as below:

younhawoo — Mon, 03 Nov 2014 08:35:05 GMT

I can not access attached document.

I think that I don't have permission.

younhawoo — Wed, 17 Dec 2014 12:29:33 GMT

Dear Guanqiong Xie,

I can not access your attatchment file.

And, source image displayed destination image.

I attached source image and destination image.

The destination image different.

Can you know this issue?

Thank you,