LG 32UQ85R-W displays a gradual black fade – audio functions are present, but the OSD menu does not respond.
LG 32UQ85R-W displays a gradual black fade – audio functions are present, but the OSD menu does not respond.
TL;DR: The LG 32UQ85R-W dims to black gradually (middle → bottom → top) while audio stays functional. OSD stops responding and only works when power is held. Occurs randomly, sometimes hours apart. Fixes tried include resetting, changing cables, using different ports, and updating drivers. Primary monitor works fine. No firmware available and warranty expired.
It really looks like a hardware fault inside the monitor, not your GPU or drivers. Since it only comes back after a full power drain, that usually means the panel’s board is aging. The only DIY step worth trying is opening it to reseat the ribbon cables or check for bad capacitors. Otherwise it’s a board replacement, which often costs close to a new monitor.
I’m considering these two ideas. The monitor’s internal power source seems to drop below a certain level, causing it to fail. What you observe is leftover voltage escaping. The audio remains unaffected since it requires less power or uses a different regulator. The backlight driver appears to be malfunctioning, which turns off the backlight but leaves the rest of the screen operational. You might verify this by using a strong flashlight on the monitor and seeing if it still functions faintly on a dark background. It’s possible neither explanation is correct, and the logic board is misreading the image data. Either way, there are likely some capacitors or voltage regulators nearing the end of their life in your monitor. A repair shop could potentially fix it, depending on their expertise and access to the model’s schematics. And remember, you might be mistaken too—good luck!
I'm not sure about the exact model, but you might want to check specialized forums or retailers. If you can share more details like the monitor's brand and specifications, I could help narrow down where to look.
Review panel identification → examine the back carefully and record the printed model on a sticker. Use that ID together with datasheets or schematics to locate power board diagrams. Panelook.com occasionally hosts such documents. For disassembly, search alternative LG 32" teardown videos even if not identical; the clips, fasteners, and wiring patterns are similar. iFixit may lack this specific resource, but sites like Elektrotanya.com or the Badcaps.net forum often share schematics and capacitor maps. If you only need to inspect a ribbon reseat or capacitors, detailed schematics aren’t essential—just a thorough disassembly guide. Begin with the back cover, remove the stand mount, open the clips around the edge, and detach the PSU/driver board shields.
Sure thing, happy to assist. Wishing you success with the fix!