GOS: Invalid PPI - falling back to default resolution
Invalid PPI (0,0) for display 1, skipping content scaling invalid ppi samsung
GOS misreads display density when resolution is changed via Settings → Display → Screen resolution (HD+/FHD+/WQHD). Switching resolutions rapidly can temporarily confuse the service. GOS: Invalid PPI - falling back to default
Then restart both displays by switching folding mode twice. 0) for display 1
Before attempting advanced software repairs, try a hard reboot to clear temporary system glitches.