topic IMX6 adding new display resolutions in i.MX Processors

IMX6 adding new display resolutions

vaheavedissian — Thu, 04 May 2017 23:32:37 GMT

1. I am using a Solid Run Humming Boar Quad (imx6) dev board.

2. I am running the Solid Run officially supported / release of Debian Jessie mate 20170413, Linux kernel 3.14.79-fslc-imx6-sr

3. No additional Hw/SW

4. No changes to HW/SW

5, 6, 7, 8:

I am trying to adjust the screen resolution with xrandr to support 1024x768-60 resolution

I follow the normal sequence of :

a. gtf

b. xrandr --newmode

c. xrandr --addmode

Step c above xrandr complains that the new mode is an invalid option.

The connect device correctly shows up as "DISP3 BG"

I have tried this with an HDMI monitor and a VGA monitor (using an HDMI to VGA dongle).

What is the correct method to change my screen resolution to support the application I will be using this board with?

Re: IMX6 adding new display resolutions

Rita_Wang — Fri, 12 May 2017 07:57:08 GMT

Hi,

Could you tell me is the HDMI display well on your board? Or you only have VGA monitor?

Have a nice day

Rita

Re: IMX6 adding new display resolutions

Rita_Wang — Fri, 12 May 2017 08:10:10 GMT

If the display is well on your board, when the board boot up ,you need to use the cat command to confirm which display resolutions are support. If the 1024x768-60 is support, you can use the echo command to change the display resolutions of the screen.