kuman 7 lcd display in stock
Touch Function?Support Windows system 10 / 8.1 / 8 / 7, Five point touch, Free drive. Support Pi Raspberry 4 3 2 1 A B A+ B+, Raspbian, Ubuntu, Windows 10 IoT, Single-Touch, Free drive.
1.Power supply(5-12V 2A), The LCD Panel donot include power charger, you can order Kuman 12V 2A power supply (Asin:B01GDX6PW4 )from usThe LCD Panel donot include power charger, you can order Kuman 12V 2A power supply (Asin:B01GDX6PW4 )from us.
I"m new to all things pi and just got a Kuman 7" 800 480 LCD screen. I tested it on my laptop first (windows 8.1) and it looked great. Plugging it into the pi, not so great. The colours are all off, only part of the screen is used and image quality is awful. I can see enough to use it but would prefer it to work properly.
I"ve followed the instructions from Kumantech"s site here reinstalling raspbian (not sure which version) after making the changes to the config.txt. Nothing has changed though. The screen image from the pi is still terrible. The touch screen works (sort of) but needs calibrating.
I got a 7" Kuman HDMI LCD screen to go with my pi B2 & pi B3. The monitor connects via HDMI and micro USB to USB to the pi. Of course this means a lot of power draw and I cannot use my keyboard or wifi at the same time i have the monitor hooked up. I tried just plugging power into the monitor via another micro usb but then the monitor doesn"t work. Anyone have any suggestions about other things i could try?
This LCD can support Raspberry Pi OS / Ubuntu / Kali / Retropie systems. When the LCD works on systems such as Raspberry Pi OS, the resolution must be set manually, otherwise, it will cause an abnormal display.
8) Connect the HDMI interface of the LCD to the HDMI interface of the Raspberry Pi, power on the Raspberry Pi, and wait for a few seconds until the LCD displays normally.
If you use the Buster branch system, you can use it according to the above configuration. But if you are using the Bullseye branch system, you need to modify the default KMS driver to FKMS driver for displaying the system desktop normally.
2. Input command xinput in the terminal, and check the touch ID of the main monitor. (There should be two IDs, you can touch displays to check which is the main one);
Insert the TF Card to Raspberry Pi, connect the Raspberry Pi and LCD by HDMI cable; connect USB cable to one of the four USB ports of Raspberry Pi, and connect the other end of the USB cable to the USB port of the LCD; then supply power to Raspberry Pi; after that if the display and touch both are OK, it means drive successfully (please use the full 2A for power supply).
After execution, the driver will be installed. The system will automatically restart, and the display screen will rotate 90 degrees to display and touch normally.
(" XXX-show " can be changed to the corresponding driver, and " 90 " can be changed to 0, 90, 180 and 270, respectively representing rotation angles of 0 degrees, 90 degrees, 180 degrees, 270 degrees)
Rotating the screen to the proper orientation proved challenging. The config.txt rotate commands don’t work with the raspberry pi4. I couldn’t get the xorg configuration to rotate the display. When I added kernel commandline parameters to rotate the display, that worked for the initial verbose boot screen… but once KlipperScreen loaded, it was the wrong orientation.