@Hesham1216 Your previous information misled me. What I want is the information when the khadas board connects to your screen. The executed command is executed on the khadas board. Please provide information for the following three commands again:
kedge2:/ $ wm size
Physical size: 1920x1080
kedge2:/ $
kedge2:/ $ cat /sys/class/mcu/dpmode
dpmode=3840x2160
kedge2:/ $
kedge2:/ $ dmesg
Was the screen connected when you executed the command?
@goenjoy
Sorry if I misled you 
Yes the screen is connected
Strangely today touch was not working…
I made a video so you can check
And thank you for your time
@Hesham1216 Unable to access your video website. It’s best to provide information in written form. Especially the dmesg command needs to be provided in the form of a file.
Ok no problem
Can you please give me a command line to save the dmesg to a file or steps I should do?
I appreciate your efforts 
@goenjoy
Brother, should I create the dmesg log after trying the command
cat … dpmode?
If this is th case, I will try again and upload the log 
@Hesham1216 I have been unable to open the Mega website on my end, please upload it to another cloud drive. Also, please post the previous two commands.
@Hesham1216 Please follow the steps below to add a line of code to the build.prop file: persist.vendor.framebuffer.main=1920x720@60
C:\Users\25348>adb root && adb remount
remount succeeded
C:\Users\25348>adb pull /vendor/build.prop .
/vendor/build.prop: 1 file pulled. 1.7 MB/s (5534 bytes in 0.003s)
C:\Users\25348>adb push C:\Users\25348\build.prop /vendor/build.prop
C:\Users\25348\build.prop: 1 file pushed. 0.1 MB/s (5534 bytes in 0.105s)
C:\Users\25348>adb shell sync
C:\Users\25348>adb reboot
Hello brother
I executed the commands successfully
The resolution changed on the pc screen (got stretched a bit)
On car screen it got worse
And doesn’t rotate the main screen
Still more stretched
Brooootthheerrrr
I did it i did ittttt
I changed the resolution to 720x1920 
You gave me the path and I followed it I am really grateful 
It looks amaaaziinnngggg on the carrrr brotherrrr
It even saves the settings if khadas turned off
Thank you thank you
@Hesham1216 Brother, you are really a genius!
I didn’t expect this screen to have a vertical resolution. So modify it this way:
persist.vendor.framebuffer.main=720x1920@60
Maybe we are two geniuses thinking together and this is the result 
Thank you brother for your support and continuous response
I will modify the build.prop to make it consistent
Thank you and have a great weekend 
So much bromance going on here 
Bro by the way if you have any idea about this please reply to this post:
I appreciate any suggestions or recommendations
