Edge2 Android 14: HDMI display not properly detected during boot into Android

[jkoehler]

Which system do you use? Android, Ubuntu, OOWOW or others?

Android 14

Which version of system do you use? Please provide the version of the system here:

edge2-android-14-v250708.img

Please describe your issue below:

Steps to reproduce

1. Connect Magedock Display Pi-X4 or TF133 to Khadas Edge 2 HDMI<->HDMI
2. Power on Display
3. Power on Khadas Edge 2 Board
4. Wait until system boot is finished

Observation

Display remains black / shows “no signal”

Workaround 1)

Unplug HDMI connector and plug it in again while the system remains powered on → Display works

Workaround 2)

Set fixed mode via property persist.vendor.resolution.HDMI-A-0:

adb shell setprop persist.vendor.resolution.HDMI-A-0 1920x1080@59.94-2008-2052-2200-1084-1089-1125-5-148352

→ Display works

Post a console log of your issue below:

Display shows black screen:

adb shell cat /sys/class/mcu/dpmode
dpmode=1920x1080

adb shell cat /sys/class/drm/card0-HDMI-A-1/status
connected

cat /sys/class/drm/card0-HDMI-A-1/modes
1920x1080
1920x1080
1920x1080
1920x1080
1600x900
1366x768
1280x720
1280x720
1280x720
1280x720
1024x768
1440x480
1440x480
800x600
720x480
720x480
640x480
640x48


Magedok Pi-X4
EDID: magedok_pi-x4_edid.zip / magedok_pi-x4_edid.txt

Magedok T133F
EDID: magedok_t133f_edid.zip / magedok_t133f_edid.txt

logcat.txt (4.5 MB)
dmesg.txt (505.7 KB)

magedok_pi-x4_edid.txt (4.9 KB)
magedok_t133f_edid.txt (4.9 KB)
magedok_pi-x4_edid.zip (395 Bytes)
magedok_t133f_edid.zip (394 Bytes)

[goenjoy]

@jkoehler https://drive.google.com/file/d/1y88LSvl0Yf9Wx_QZrCuG51jOq7Jd9xcS/view?usp=sharing
Try this link firmware. If there are still issues, please provide a complete dmesg log.

[jkoehler]

@goenjoy I deleted my previous wrong post. It was a mistake.
The display works with the new image.
Can you please let me know which source code was changes in order to make it work?

[goenjoy]

@jkoehler

edge2-14/kernel-6.1$ git log -p
commit a302e5287815f7a4042a2ead2e2fe1ee1268e581 (HEAD -> khadas-edge2-android14)
Author: Xiong Zhang <xiong.zhang@wesion.com>
Date:   2025-09-22 15:23:30 +0800

    Revert "Resolve the issue of incomplete display of the special HDMI resolution list"
    
    This reverts commit faaec55467ec2d310962af16f8078e91ee3bc436.

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts b/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
index f941303741c3..5266b643eb66 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
@@ -233,11 +233,6 @@ &hdmi0_sound {
        status = "okay";
 };
 
-&display_subsystem {
-  clocks = <&hdptxphy_hdmi0>;
-  clock-names = "hdmi0_phy_pll";
-};
-
 &hdptxphy_hdmi0 {
        status = "okay";
 };

[jkoehler]

Thanks a lot! Works like a charm now.