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+-- Forum: OpenAuto Pro (https://bluewavestudio.io/community/forum-86.html)
+--- Forum: Installation and Upgrades Support (https://bluewavestudio.io/community/forum-93.html)
+--- Thread: DSI display not working (/thread-3483.html)
DSI display not working - Malte - 07-06-2022
Hi,
I have a DSI display that works fine on various distributions I tested with (including Buster)
The display won't show anything using the buster distro used in the OpenAuto distribution. I checked that the
dtoverlay=vc4-fkms-v3d
is provided and also tested
auto_detect_display=1
No success.
Any clues what could be the issue here?
I also started to re-create the OpenAuto distro on the buster image that I got working. I'm approaching the point where I need to install the qt5 libs now. Is there some info / instructions what steps to follow in order to accomplish this?
Thanks
Malte
RE: DSI display not working - Daniel_BlueWave - 07-06-2022
We need this information https://bluewavestudio.io/community/thread-1385.html
RE: DSI display not working - Malte - 07-06-2022
Here you go
The Display worked out of the box on Buster, Bullseye (I used the Raspberry PI OS images) and on the image that came with the RPI (overwritten meanwhile - So I can't provide further details)
1. Provide detailed description of your setup:
System requirements:
a. What is the version of your RPI?
RPI 4B 4GB
b. Power supply details
RPI starter kit supplied power supply
c. Model of external sound card
not connected - I intend to use ESI Gigaport ex 8 channel USB soundcard
d. Do you have microphone input?
no
e. Details of your Bluetooth dongle.
not connected
f. Touchscreen model
4,3" DSI display, Maxgeek, 800x480 capacitive touch, DSI connected
2. Android Auto:
a. Which version of Android Auto have you installed on your phone?
No phone connected. Not relevant
b. Model of your phone.
Not relevant
4. Steps to reproduce your issue
RE: DSI display not working - BlueWave - 07-06-2022
OpenAuto Pro is an app that is running under regular Raspberry PI OS image (Buster). Try to perform update of the OS first (sudo apt-get update and sudo apt-get upgrade).
RE: DSI display not working - Malte - 07-06-2022
Yes I already figured this out.
I just ran the update commands (although I updated the system when I first installed it)
As expected there were no new packages so things did not change
I found the issue: config.txt (located in /boot)
needs to contain:
[pi4]
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
The dtoverlay line was not in the [pi4] section but in some other part of the file
RE: DSI display not working - BlueWave - 07-06-2022
(07-06-2022, 08:19 PM)Malte Wrote: Yes I already figured this out.
I just ran the update commands (although I updated the system when I first installed it)
As expected there were no new packages so things did not change
I found the issue: config.txt (located in /boot)
needs to contain:
[pi4]
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
The dtoverlay line was not in the [pi4] section but in some other part of the file
Thanks for posting back. fkms driver originally was in [all] section which should apply for all the PIs. Looks like another bug in the Raspberry PI firmware. We will double chack that and report an issue to the Pi Foundation.