Troubleshooting

Debug a black or white MIPI DSI display by checking power, reset, LP commands, D-PHY clocks, lanes, video mode, packet timing, errors, and panel init.

Stop TFT screen tearing by synchronizing framebuffer updates, DMA transfers, page flips, SPI flushes, VSYNC, and TE signals. Includes tests and design fixes.

Fix wrong, swapped, inverted, or washed-out TFT display colors by checking RGB/BGR order, pixel format, byte order, bus mapping, polarity, gamma, and software.

Diagnose TFT LCD lines, noise, shifted images, and artifacts by testing patterns, timing, interfaces, FPCs, power, EMI, and panel behavior.

Diagnose an LCD that shows a faint image but has no backlight. Check LED strings, boost voltage, current driver, enable, PWM, faults, FPC, and thermal issues.

Fix a TFT LCD white screen with a systematic checklist covering backlight, power rails, reset, initialization, interface timing, FPC, and panel faults.