5" non touch backpack display not working
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- EZRARZ3
- Posts: 5
- Joined: Tue Dec 07, 2021 11:54 am
5" non touch backpack display not working
Issue in title, bought a backpack display for a project and not getting video output on the display. Multiple PCs, micro USBs, and HDMI cords that have been verified on working displays were used but still no display. The green LED for good power is lit up but not the led for good video
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: 5" non touch backpack display not working
Have you been setting the output to 800x480 on the video sources you have plugged in?
https://www.adafruit.com/product/2232Please note the TFP401 decoder chip does not contain a video scaler, it will not resize/shrink video!
- adafruit2
- Posts: 22148
- Joined: Fri Mar 11, 2005 7:36 pm
Re: 5" non touch backpack display not working
are you using a raspberry pi?
- EZRARZ3
- Posts: 5
- Joined: Tue Dec 07, 2021 11:54 am
Re: 5" non touch backpack display not working
The screen isn't even being detected by windows on either computer
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: 5" non touch backpack display not working
This screen requires your OS to be outputting 800x480. If you are using a Raspberry Pi you can follow our config.txt to get going.
https://learn.adafruit.com/adafruit-5-8 ... -pi-config
https://learn.adafruit.com/adafruit-5-8 ... -pi-config
Code: Select all
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (here we are forcing 800x480!)
hdmi_group=2
hdmi_mode=87
hdmi_cvt=800 480 60 6 0 0 0
hdmi_drive=1
max_usb_current=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# for more options see http://elinux.org/RPi_config.txt
- EZRARZ3
- Posts: 5
- Joined: Tue Dec 07, 2021 11:54 am
Re: 5" non touch backpack display not working
I am using 2 PCs not a raspberry pi, both running windows 10
- EZRARZ3
- Posts: 5
- Joined: Tue Dec 07, 2021 11:54 am
Re: 5" non touch backpack display not working
And even installing Intel graphics controller, I cannot even set a resolution of 800x480 output as it returns a bad constraints error
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: 5" non touch backpack display not working
This display is ideal for single board computers. It is not going to work with your OS if you are unable to set the resolution to 800x480.
https://www.adafruit.com/product/2232
https://www.adafruit.com/product/2232
In particular, we suggest it for use with single board computers (or desktop/laptops!) with DVI/HDMI output like the Raspberry Pi or BeagleBone Black. You can power the driver over USB as long as your computer can supply 500mA on the USB port, and then feed it video via the HDMI port. Please note the TFP401 decoder chip does not contain a video scaler, it will not resize/shrink video!
- EZRARZ3
- Posts: 5
- Joined: Tue Dec 07, 2021 11:54 am
Re: 5" non touch backpack display not working
Then I need to return the product
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: 5" non touch backpack display not working
Please send an e-mail to [email protected] requesting a return for the 5" display. Include this forum link and your invoice#. As long as this display was purchased in the last 30-days the return process should be straight forward.
Please be positive and constructive with your questions and comments.