Cannot get RetroPie to work on 7 inch GPIO screen (Error creating SDL window)

[jfaz1]

Hello,

I recently got one of these WaveShare GPIO screens that I was hoping to use with my RPi4:
https://www.waveshare.com/wiki/7inch_LCD_for_Pi

It works fine on Raspberry Pi OS (after adding the boot config lines in the wiki above), but unfortunately I have not been able to get it to work with RetroPie. I get display, and eventually end up in the terminal, with the following errors printed at the top of the screen:
lvl0: Error creating SDL window!
lvl0: Renderer failed to initialize!
lvl0: Window failed to initialize!
My guess is it's a display issue related to EmulationStation, but I have no idea how to go about this. Here's my config.txt:
https://pastebin.com/DAUgtnzs

Any help is greatly appreciated!

[mitu]

@jfaz1 said in Cannot get RetroPie to work on 7 inch GPIO screen (Error creating SDL window):

Here's my config.txt:
https://pastebin.com/DAUgtnzs

Your configuration disables the GPU drivers for the Pi4:

[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
#dtoverlay=vc4-fkms-v3d
max_framebuffers=2
dpi_timings=1024 1 40 48 128 600 1 13 3 45 0 0 0 60 0 37000000 6

You need to enable the vc4-fkms-v3d overlay, otherwise RetroPie and its included programs will not work.

[jfaz1]

@mitu that was crazy fast, thank you! Just uncommented it and it actually worked. I thought it was being overriden by the one in [all] but I'm happy to be wrong.
Again, thank you!