iMX7 Video

Table of Contents

1. Rotation
2. Reported Modes
3. Current resolution
4. Boot Parameters

imx7 console rotation

• kernel config

CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y

• kernel boot parameter must have this:

fbcon=rotate:1

For more details about the fbcon parameters refer to: https://www.kernel.org/doc/Documentation/fb/fbcon.txt

• xorg.conf

Section "Device"
    Identifier  "Kernel Framebuffer Device"
    Driver      "fbdev"
    Option      "fbdev" "/dev/fb0"
    Option      "Rotate" "CW"
EndSection

Section "ServerFlags"
    Option "BlankTime"  "0"
    Option "StandbyTime"  "0"
    Option "SuspendTime"  "0"
    Option "OffTime"  "0"
EndSection

• weston.ini

...
[output]
name=fbdev
transform=90
...

Reported Modes

cat /sys/class/graphics/fb0/modes

Current resolution

fbset

Boot parameters for supported display modes

Supported display modes:

• dvi1280x720 - 1280X720 DVI.
• dvi1280x1024 - 1280X1024 DVI.
• dvi1920x1080 - 1920X1080 DVI.
• dvi1024x768 or dvi (default) - 1024X768 DVI.

Follow this procedure in order to set a supported mode, for instance a maximum available 1920x1080:

1. Reboot the device & stop in U-Boot.
   
2. Issue:
   

env default -a
setenv displaytype dvi1920x1080
saveenv