I've got a Raspberry Pi 4 8GB and have retried the installation process linked [/https://learn.adafruit.com/adafruit-pit ... -install-2]here[/url] over 4 times now. The screen will display the console with no problem but as soon as I switch it to HDMI mode, the screen goes completely black. The output on my HDMI monitor also becomes very garbled.
What can I do to fix it? The screen works since it displays the console with no problem. The HDMI output isn't working though :(
3.5" PiTFT HDMI Output Not Working
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- vedsvde
- Posts: 4
- Joined: Sun May 24, 2020 5:48 am
3.5" PiTFT HDMI Output Not Working
Last edited by vedsvde on Wed Mar 31, 2021 3:28 pm, edited 1 time in total.
- adafruit_support_carter
- Posts: 29168
- Joined: Tue Nov 29, 2016 2:45 pm
Re: 3.5" PiTFT HDMI Output Not Working
Can you clarify what you mean by "switch to HDMI mode". Are you re-running the install script and selecting the mirror HDMI option?
https://learn.adafruit.com/adafruit-pit ... -install-2
https://learn.adafruit.com/adafruit-pit ... -install-2
- vedsvde
- Posts: 4
- Joined: Sun May 24, 2020 5:48 am
Re: 3.5" PiTFT HDMI Output Not Working
Correct, that is what I'm doing.adafruit_support_carter wrote:Can you clarify what you mean by "switch to HDMI mode". Are you re-running the install script and selecting the mirror HDMI option?
https://learn.adafruit.com/adafruit-pit ... -install-2
- adafruit_support_carter
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- Joined: Tue Nov 29, 2016 2:45 pm
Re: 3.5" PiTFT HDMI Output Not Working
Thanks. And then are you running the single command line option? Or via the interactive process (which is further down on page)?
- vedsvde
- Posts: 4
- Joined: Sun May 24, 2020 5:48 am
Re: 3.5" PiTFT HDMI Output Not Working
https://imgur.com/a/DrdpNDdadafruit_support_carter wrote:Can you clarify what you mean by "switch to HDMI mode". Are you re-running the install script and selecting the mirror HDMI option?
https://learn.adafruit.com/adafruit-pit ... -install-2
This is what my monitor looks like. The actual PiTFT itself has a black screen.
- vedsvde
- Posts: 4
- Joined: Sun May 24, 2020 5:48 am
Re: 3.5" PiTFT HDMI Output Not Working
I am using the interactive process.adafruit_support_carter wrote:Thanks. And then are you running the single command line option? Or via the interactive process (which is further down on page)?
- MakerMelissa
- Posts: 375
- Joined: Wed Jun 05, 2013 2:10 am
Re: 3.5" PiTFT HDMI Output Not Working
Hello, What happens if you don't have an HDMI cable plugged in and you boot?
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" PiTFT HDMI Output Not Working
I am having the same issue with mine.
- GB_GH
- Posts: 9
- Joined: Wed Aug 12, 2015 3:54 am
Re: 3.5" PiTFT HDMI Output Not Working
Same problem here. Used...
> sudo python3 adafruit-pitft.py
to reconfig from console (worked fine) to mirror HDMI (blank PiTFT)
I don't have any HDMI devices.
GB.
> sudo python3 adafruit-pitft.py
to reconfig from console (worked fine) to mirror HDMI (blank PiTFT)
I don't have any HDMI devices.
GB.
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" PiTFT HDMI Output Not Working
Yep mine is still broke as well.
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" PiTFT HDMI Output Not Working
Ok, I finally got time to test this, when booting without HDMI plugged in the TFT screen is fine, to my great surprise.MakerMelissa wrote:Hello, What happens if you don't have an HDMI cable plugged in and you boot?
Another note, the installer no longer works with older versions of Raspberry Pi OS, the so called "last known working" version from last December fails. Error is something along the lines of "unable to update apt indexes"
- GB_GH
- Posts: 9
- Joined: Wed Aug 12, 2015 3:54 am
Re: 3.5" PiTFT HDMI Output Not Working
Hi o_spengler,
Which version of OS gave you the working TFT screen please ?
Is it safe to update to the latest version ?
Thanks, GB
Which version of OS gave you the working TFT screen please ?
Is it safe to update to the latest version ?
Thanks, GB
- o_spengler
- Posts: 14
- Joined: Sat Jun 26, 2021 10:02 pm
Re: 3.5" PiTFT HDMI Output Not Working
The latest version gave a working TFT with no HDMI plugged in.GB_GH wrote:Hi o_spengler,
Which version of OS gave you the working TFT screen please ?
Is it safe to update to the latest version ?
Thanks, GB
Safe to upgrade? Eh... maybe?
- GB_GH
- Posts: 9
- Joined: Wed Aug 12, 2015 3:54 am
Re: 3.5" PiTFT HDMI Output Not Working
Thanks for info.
G.
G.
- lbaute
- Posts: 4
- Joined: Sat Jul 04, 2015 12:30 pm
Re: 3.5" PiTFT HDMI Output Not Working
Mine is still broken, what was the solution for this?
Havin HDMI connector disconnected, doesn't sound like a final solution, I can connect and disconnect from inside the place I have it
Havin HDMI connector disconnected, doesn't sound like a final solution, I can connect and disconnect from inside the place I have it
Please be positive and constructive with your questions and comments.