Flickering white screen; at wit's end
Posted: Mon Jan 15, 2018 12:00 pm
Hi;
I recently started building a MintyPi of my own using Wermy's PCB and a 2.2" ILI9341 LCD. I didn't have a ribbon cable for the thing, so I soldered wires connecting the PCB to the screen. The thing boots; I can SSH into RetroPie on my desktop and FTP files to/from the device. The SD card also boots properly on other Raspberry Pi units and via HDMI. However, when I try to use it on the MintyPi setup, all I get is a flickering white/black screen, with occasional lines of green and blue. I'm not sure what to do about this.
I've tried numerous things; the short list includes:
- Reinstalling the fbtft drivers from the ground up
- Just plain old RetroPie and not the image specifically for MintyPi
- This tutorial: https://sudomod.com/forum/viewtopic.php ... 31760697a0
- This guide: https://sudomod.com/forum/viewtopic.php?f=34&t=3895
- Switching SDI/SDO wires
- Other SD cards
- Made sure none of the pins are touching
- Made sure no solders are bridged
- Checked continuity between points via multimeter
And I've gotten nowhere.
https://i.imgur.com/1xzMVZ0.jpg
https://i.imgur.com/zxihvJZ.jpg
https://i.imgur.com/f0lh17s.jpg
https://i.imgur.com/ozbfCFf.jpg
https://i.imgur.com/jD6hwOE.jpg
The above are details of my soldering as well as what's going on with the screen. Any advice would be appreciated. Thank you!
I recently started building a MintyPi of my own using Wermy's PCB and a 2.2" ILI9341 LCD. I didn't have a ribbon cable for the thing, so I soldered wires connecting the PCB to the screen. The thing boots; I can SSH into RetroPie on my desktop and FTP files to/from the device. The SD card also boots properly on other Raspberry Pi units and via HDMI. However, when I try to use it on the MintyPi setup, all I get is a flickering white/black screen, with occasional lines of green and blue. I'm not sure what to do about this.
I've tried numerous things; the short list includes:
- Reinstalling the fbtft drivers from the ground up
- Just plain old RetroPie and not the image specifically for MintyPi
- This tutorial: https://sudomod.com/forum/viewtopic.php ... 31760697a0
- This guide: https://sudomod.com/forum/viewtopic.php?f=34&t=3895
- Switching SDI/SDO wires
- Other SD cards
- Made sure none of the pins are touching
- Made sure no solders are bridged
- Checked continuity between points via multimeter
And I've gotten nowhere.
https://i.imgur.com/1xzMVZ0.jpg
https://i.imgur.com/zxihvJZ.jpg
https://i.imgur.com/f0lh17s.jpg
https://i.imgur.com/ozbfCFf.jpg
https://i.imgur.com/jD6hwOE.jpg
The above are details of my soldering as well as what's going on with the screen. Any advice would be appreciated. Thank you!