EDIT: This is the the screen I bought

This is my first post here so I hope I do not screw up too much...

I have a raspberry pi3 with 3.5inch tft resistive touchscreen display (720x480) connected via SPI (GPIO pins).

I would like to use it for a project, but the problem is that the screen is too small and windows cant fit inside. I need to fit at least 1280x720 (1920x1080 would be better) into a 720x480 screen.

The screen is installed using this repository and I have already tried things mentioned in this post. I am currently at a loss for what to try next. I will also attach my current /boot/config.txt file, to make it easier to explain what to do.

Thanks in advance for any tips and suggestions.

my /boot/config.txt file:

# For more options and information see
# http://www.raspberrypi.org/documentation/configuration/config-txt.md
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border

# uncomment to force a console size. By default it will be display's size minus
# overscan.

# uncomment if hdmi display is not detected and composite is being output

# uncomment to force a specific HDMI mode (this will force VGA)
hdmi_cvt=1024 720 60 1 0 0 0

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display

# uncomment for composite PAL

#uncomment to overclock the arm. 700 MHz is the default.

# Uncomment some or all of these to enable the optional hardware interfaces
# Uncomment this to enable the lirc-rpi module

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
  • I assume you mean this TFT screen? If so here is a tutorial learn.adafruit.com/… Also FYI there are images at the bottom that have everything already good to go if you just want the screen to work – Eric F Apr 12 '19 at 17:46
  • Check my edit, it is a different screen. Also check the github link. – Luk164 Apr 12 '19 at 18:04
  • Check my edit. It is the exact one I ordered. – Luk164 Apr 12 '19 at 18:09
  • Hm sorry I am not any help past what you tried. Hopefully someone else comes along to help – Eric F Apr 12 '19 at 18:13
  • No problem, I aprreciate that you at least tried. – Luk164 Apr 12 '19 at 18:14

This looks promising: https://www.raspberrypi.org/forums/viewtopic.php?t=143581

The screen in your link uses a XPT2046 chip. Seems that this line is required in the /boot/config.txt file:


The parameters for the framebuffer (width and height) could be a problem, try commenting them out by adding a # in the first position of each line, then the default will be chosen automatically.

Hopefully it will work, my screen is ordered, so I have not yet had a chance to test this.

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