Screen is using the wrong framebuffer
If you have multiple framebuffers, you may need to fix the X11 configuration, list the available framebuffers and check the current one:
Critical
if you only see one, for example /dev/fb0
then this is not the issue. Go to Troubleshooting
Use fbcp to copy from one framebuffer to the other
cd
git clone https://github.com/tasanakorn/rpi-fbcp.git
cd rpi-fbcp
mkdir build
cd build
cmake ..
make
sudo install fbcp /usr/local/bin/fbcp
sudo wget -O /etc/init.d/fbcp https://gist.github.com/notro/eac0fec51cac67bb99c7/raw/4804a36459db10b17d35451d98d4573a045084be/fbcp
sudo chmod +x /etc/init.d/fbcp
sudo update-rc.d fbcp defaults
sudo reboot
Manually change the framebuffer
the file specifying the framebuffer could be:
- 99-fbturbo.conf
- 99-fbusb.conf
- 99-fbdev.conf
check if one of those or similar exist with: