@sugarfree Well, I wasn't quite sure what I did was right and I don't know the terminology too well, but I cloned the Raspberry Pi kernel, modified only the lines of code mentioned in the workaround (the file being vc4_v3d.c), then compiled and installed the kernel. It might have been just dumb luck that this worked, and my problem may have been something else entirely.

it's working! fantastic! thanks!

Do you have a link to the TFT screen install instructions ? Post your config.txt to see how it's configured.

@CrazySpence did you update RetroPie-Setup first? That dependency was added recently.

I too found this arcade 3D print and had huge problems getting the diplay to work. Thanks to this old post I got it working after all. For all of you who also stumble over this post the code that has to be executed has changed a bit: "sudo apt-get install build-essential python-dev python-smbus python-pip python-pil python-numpy git" otherwise it aborts with an error.
Thanks watson49 for posting your solution. I wouldn't have been able to do it otherwise!

@mitu Yes

Performance-wise, if your Waveshare 3.2" is able to reach 73.7 Mhz or higher, you will get a solid 60fps on the display. In such case, you can try enabling NO_INTERLACING in config.h. SPI bus speeds 66Mhz and higher will also in practice run at 60fps. 40Mhz-60MHz generally resort to interlacing every now and then, and < 40 MHz will typically run fully interlaced (e.g. ILI9486 based displays)

This video

is running a Raspberry Pi CM3 with a Waveshare 3.2" with SPI bus at 66MHz.

@batman I was looking into some LCDs too and I added most of those to my wish list while I was laying in bed the other night lol. But I discovered those 2k monitors and the capacitive touch monitors when I was making this post. Really good looking LCDs!

Hi,
I'm running into the same problem where my robopeak usb tft has red and blue swapped when I use fbcp.
Did you find a solution?

@obsidianspider I got distracted with other projects, should really get back on it

@Yamt that appears to be a waveshare clone and should follow the waveshare 32b guide.

The new theme Cygnus -Blue flames is also great for small screens ( 5 inch and more)

New edit : I did an important update today. The theme now has a default interface for uncovered systems. See here

It's working!

I reapplied the Raphnet kernel patch. The CPU is once again showing as BCM2835, but my screen's output is fixed! It looks like the 20170303 version of the kernel fixed the issue.

I'm really going to think twice about updating the software on my now working Super Famicom Pi.

Hi !!
Super useful.....thanks.
But ili9341 is now included in RASPBIAN STRETCH kernel, so I took off from the fbcp installation and did work.

But I noticed that the screen refresh rate is too slow.
In this new scenario, where do I do the tweaks you suggest?