I recently purchased the "HDMI 5" Display Backpack - Without Touch ID:2232" and haven’t be able to get the display to work.
When connecting the microUSB cable, the unit powers on with the "PWR-GOOD" LED lighting up without any issue.
When connecting the HDMI cable, I either get: 1) a blank screen when I connect to my Windows laptop and desktop, or 2) flickering horizontal lines, when I connect to my Raspberry Pi (see attached photo).
The "VIDEO-GOOD" LED lights up only when I have the Raspberry Pi plugged in via HDMI and the flickering horizontal lines are displayed.
I have tried swapping the HDMI cables without any improvement to my current situation.
I've also tried reseating the ribbon connector based on the advice from this forum post without any improvement to my current situation:
viewtopic.php?f=50&t=125583&p=626814&hi ... ng#p626814
I am wondering what the next step should be in getting a working 5" display. I am hoping to use this display for both my Raspberry Pi and desktop computer.
HDMI 5" Display Backpack Without Touch not working
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Please be positive and constructive with your questions and comments.
- erikc1
- Posts: 2
- Joined: Tue Nov 07, 2017 9:49 pm
HDMI 5" Display Backpack Without Touch not working
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- Flickering Horizontal Lines Displayed with Raspberry Pi
- Adafruit Backpack 5 - Connected to Raspberry Pi.jpg (975.29 KiB) Viewed 619 times
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: HDMI 5" Display Backpack Without Touch not working
Did you set up the raspberry pi config.txt file?
https://learn.adafruit.com/adafruit-5-8 ... -pi-config
https://learn.adafruit.com/adafruit-5-8 ... -pi-config
- Hockeyt3
- Posts: 4
- Joined: Mon Jun 05, 2017 8:30 pm
Re: HDMI 5" Display Backpack Without Touch not working
I am having the same issue and it is connected to gopro hdmi output
have tried swapping the ribbon cable around double checked all connections
have tried swapping the ribbon cable around double checked all connections
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: HDMI 5" Display Backpack Without Touch not working
In HDMI, the source and the display 'negotiate' for a resolution to use. Typically, the display will support several resolutions, and the source will support several resolutions. The negotiation process looks for resolutions that are supported by both the source and the display, and the source will pick the one it wants to use.
However, this display only has the one resolution - 800x600. If the source doesn't support that., then the negotiation process fails, and nothing is displayed.
I suspect that's what's happening with the GoPro. You can check the documentation to see if it supports 800x600
However, this display only has the one resolution - 800x600. If the source doesn't support that., then the negotiation process fails, and nothing is displayed.
I suspect that's what's happening with the GoPro. You can check the documentation to see if it supports 800x600
- erikc1
- Posts: 2
- Joined: Tue Nov 07, 2017 9:49 pm
Re: HDMI 5" Display Backpack Without Touch not working
Thank you for the advice! I was able to get my display to work with my Raspberry Pi 3.adafruit_support_rick wrote:Did you set up the raspberry pi config.txt file?
https://learn.adafruit.com/adafruit-5-8 ... -pi-config
I am still trying to get the display to work with my laptop (which runs windows 10 and does not have the 800x480 resolution listed as a valid mode). If you have any resources that have a potential solution to this issue, I would greatly appreciate it.
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: HDMI 5" Display Backpack Without Touch not working
If your laptop doesn't support 800x600, then there's nothing you can do.
Please be positive and constructive with your questions and comments.