I am trying to setup the Adafruit 3.5" TFT touchscreen on a raspberry pi 4 and am getting nowhere.
I followed the instructions on this link, including an attempt using the pin kernal fix linked at the top.
https://learn.adafruit.com/adafruit-pit ... -install-2
However, no matter what I end up with no display on the screen, and a bizarre result on the HDMI of two duplicated displays next to each other in the top half, with nothing on the bottom (imagine a screen divided into quarters). The colors are inverted in the top half.
What is going on here?
3.5" TFT Screen does not work
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Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
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- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" TFT Screen does not work
Having spent several additional days on this I cannot find a solution. Tried older versions of the OS, various changes to the configuration. I have found other people complaining about this. If these screens no longer work with the Pi why are you still selling them?
- Franklin97355
- Posts: 23912
- Joined: Mon Apr 21, 2008 2:33 pm
Re: 3.5" TFT Screen does not work
Does the HDMI display not work with other sources of input?
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" TFT Screen does not work
Works fine for other sources, including the Pi without the Adafruit driver installed.
What I am getting is very similar to this
https://imgur.com/a/DrdpNDd
As seen in this thread
viewtopic.php?f=47&t=177513&p=878923#p878923
What I am getting is very similar to this
https://imgur.com/a/DrdpNDd
As seen in this thread
viewtopic.php?f=47&t=177513&p=878923#p878923
- adafruit_support_carter
- Posts: 29168
- Joined: Tue Nov 29, 2016 2:45 pm
Re: 3.5" TFT Screen does not work
Was the HDMI output normal prior to running the TFT install script?
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" TFT Screen does not work
Yes HDMI output was normal prior to running the script.
- adafruit_support_carter
- Posts: 29168
- Joined: Tue Nov 29, 2016 2:45 pm
Re: 3.5" TFT Screen does not work
Do you remember what options you picked for installing? If you used the command line option:
https://learn.adafruit.com/adafruit-pit ... -3074227-9
what was the full command line you used?
If you used the interactive option:
https://learn.adafruit.com/adafruit-pit ... 2982154-38
which options did you pick?
https://learn.adafruit.com/adafruit-pit ... -3074227-9
what was the full command line you used?
If you used the interactive option:
https://learn.adafruit.com/adafruit-pit ... 2982154-38
which options did you pick?
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" TFT Screen does not work
I tried it both ways. Command line was
Interactive was for the same setup, although once I used rotation 270 since that is how I wanted the screen
Code: Select all
sudo python3 adafruit-pitft.py --display=35r --rotation=90 --install-type=fbcp
- adafruit_support_carter
- Posts: 29168
- Joined: Tue Nov 29, 2016 2:45 pm
Re: 3.5" TFT Screen does not work
Thanks. That seems fine. What is the behavior of the TFT if you boot *without* anything attached to HDMI?
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" TFT Screen does not work
Not sure, will test later today.
- adafruit2
- Posts: 22148
- Joined: Fri Mar 11, 2005 7:36 pm
Re: 3.5" TFT Screen does not work
did this get resolved? its a weird one!
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" TFT Screen does not work
Nope, this never got resolved.
I was in the process of moving and did not have time or the ability to interact with the pi for a bit, but I did a fresh test tonight and as of tonight it is still broken.
I was in the process of moving and did not have time or the ability to interact with the pi for a bit, but I did a fresh test tonight and as of tonight it is still broken.
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" TFT Screen does not work
Nope still broken, and even the "The last known for-sure tested-and-working version is December 4, 2020 " does not actually work.adafruit2 wrote:did this get resolved? its a weird one!
Forum rules
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/