Dietpi 7" lcd screen(b) resolution set up

General Discussion
1

Good day!
Can someone help me how to set up my 7"lcd touch screen, i this bought 2nd hand no box included but seller gave me where did he bought this originally.
DietpiOS +LMS, squeezelite and chronium-browser.
32gb sandisk sd card.
I flashed dietpi os armv8 to my 32gb sandisk sd card using rufus and i want to know what should i do to set up this according to the pic.
I don’t know what i put in the ff.
Hdmi_group
Hdmi_mode
Hdmi_timings
Hdmi_blanking
Max_usb_current
Display_rotate
And also chronium resolution in dietpi.txt
Before I’m going to boot in rpi4b.

Please see attached photo.

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Screenshot_20240317_161424_com.android.chrome
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Screenshot_20240317_161448_com.android.chrome
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received_1454661141788519
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2

Hello, your screenshots have some contradictory info, the info from the phone screenshot is not right for the display from the last picture.
You are using the 800x480 pixel version, right?
Let’s stick to the parameters from the waveshare wiki.
I assume it’s this one, just without the case:
https://www.waveshare.com/wiki/7inch_HDMI_LCD_(B)