• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 100 subscribers
  • Views 220 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SK-AM62-LP: Dual Display support on SK-AM62-LP

Libin Jose
Prodigy 130 points
Part Number: SK-AM62-LP

Tool/software:

Dear Team,

I have a very urgent PoC coming up in which I need to show case dual display on SK-AM62-LP

I am trying to bring up dual display on SK-AM62-LP. Primary display on LVDS and secondary display on HDMI.

However, even after following your document, both LVDS and HDMI screen is blank.

Please help me in getting the dual display up and running on SK-AM62-LP.

Primary Display     : https://www.ti.com/tool/SK-LCD1

Secondary display: TST123HDKK-06 2.3" HDMI Display

We are using software version 10.00 Android SDK with Linux kernel version 6.1.

https://software-dl.ti.com/processor-sdk-android/esd/AM62PX/10_00_00/docs/devices/AM62PX/android/Application_Notes.html

Android is build using following steps

# Display settings (windowing, system decorations, IME ...)
PRODUCT_COPY_FILES += \
   device/ti/am62x/display_settings.xml:$(TARGET_COPY_OUT_VENDOR)/etc/display_settings.xml

# Enable activities on secondary displays
PRODUCT_COPY_FILES += \
   frameworks/native/data/etc/android.software.activities_on_secondary_displays.xml:system/etc/permissions/android.software.activities_on_secondary_displays.xml

Debug terminal
==============
==> env set dtbo_index 10
==> saveenv
==> reset


Best regards
Libin Jose
  • +1
    TI__Intellectual 2310 points

    Hi,

    i just test with release images from website with mirror display , touch and LVDS+HDMI works for me .
    i use this image tarball :  dr-download.ti.com/.../AM62Px_userdebug_10.00.00_emmc.tgz

    Do you test release image with mirror display ?

    for testing extendend you can test it with release image too with this command : 

    Fullscreen
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    adb root
    adb remount
    #from you aosp build env :
    adb push device/ti/am62x/display_settings.xml /vendor/etc/display_settings.xml
    adb push frameworks/native/data/etc/android.software.activities_on_secondary_displays.xml /system/etc/permissions/android.software.activities_on_secondary_displays.xml
    if adb push not working with read only error , reboot board and redo :
    adb root
    adb remount
    retry push.
    reboot and then you should have extended ui
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX



    be sure to plug power on LVDS Display and on board too.

    Guillaume

  • 0 in reply to Guillaume La Roque
    Prodigy 130 points

    Dear Guillaume,

    Kindly note that my secondary display is of below configuration HDMI (1920x720). Nothing comes on the screen

    Secondary display: TST123HDKK-06 12.3" HDMI Display

    TST123HDKK-06_SPEC_V1.2.pdf

    Best regards,

    Libin Jose

  • 0 in reply to Libin Jose
    TI__Intellectual 2310 points

    Hi,

    Do you have specific log on boot link to hdmi?
    if you don't enable dual screen do see something on HDMI screen ?
    not possible to test with an other ?

    can you do this commands from serial console and share result?

    Fullscreen
    1
    2
    3
    su
    mount -t debugfs none /sys/kernel/debug/
    cat /d/dri/0/*
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX


    Guillaume