Dose anyone confirm the function of HDMI output at XGA mode using android_jb4[1].2.2_1.1.0-ga ?

[takaya]

Hi,

Does anyone confirm the functionality of HDMI output at XGA mode using android_jb4[1].2.2_1.1.0-ga and iMX6D SEBRE ?

If you have recommended configurations, setup or resolution commands, please let me know.

takaya

[igorpadykov]

Hi takaya

strictly speaking XGA mode 1024×768 is not listed in

supported modes in Table 33-3 "Video Modes"  IMX6DQRM

i.MX 6Dual/6Quad Applications Processor Reference Manual.

Seems operation depends on particular monitor, because some monitors work

well with i.MX6 at XGA.

First you should use true HDMI monitor and check if it supports XGA:

try this from Linux command line:

cat /sys/class/graphics/fb0/modes

Best regards

chip

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[takaya]

Thank you for your prompt reply.

According to the Manual you introduced, XGA 1024x768 is not listed in the table 33-3.

I'm still looking into the section in details, but I'd like to ask.

?? Does HDMI Tx block have the capability to transfer image date at XGA mode ??

?? Can we see proper pictures at XGA mode with some modification of BSP and iMX configuration ??

If anyone has such experience, I'd like to share the information.

I really appreciate your assistance.

regards,

takaya

[igorpadykov]

Hi takaya

Operation depends on particular monitor, because some monitors work

well with i.MX6 at XGA.

First you should use true HDMI monitor and check if it supports XGA:

try this from Linux command line:

cat /sys/class/graphics/fb0/modes

Best regards

chip

[takaya]

Executed modes command for fb0, fb1 and fb2.

root@android:/ # cat /sys/class/graphics/fb0/modes

D:1024x768p-60

root@android:/ # cat /sys/class/graphics/fb1/modes

U:240x320p-60

root@android:/ # cat /sys/class/graphics/fb2/modes

S:640x480p-60

S:720x576p-50

S:720x480p-60

S:720x480p-60

S:1280x720p-50

S:1280x720p-60

S:1920x1080p-50

S:1920x1080p-60

V:640x480p-60

V:1280x1024p-60

V:1024x768p-60

V:640x480p-60

root@android:/ # cat /sys/class/graphics/fb2/mode

V:1024x768p-60

root@android:/ #

How's the result ?

What's suitable configuration for XGA mode ?

regards,

takaya

[igorpadykov]

Hi takaya

Operation depends on particular monitor

and not guaranteed.

Best regards

chip