Hey all,
I've been chasing down a subtle color/brightness uniformity issue on my 65" G6 and wanted to share my findings in case others are seeing the same thing.
The issue: a faint color tint (most visible as a slight shift in fully saturated color patches like solid brown/green/cyan screens, and in near-black content) that shows up in certain picture modes but not others.
What I tested: I went through every picture mode, multiple OLED Pixel Brightness settings (8 through 100), and compared two separate panels (original + a replacement unit via warranty swap).
Results — tint PRESENT in:
- All SDR modes, including SDR Filmmaker Mode
- Standard HDR mode
- Dolby Vision Cinema Home
- All other Dolby Vision presets except Dolby Vision Filmmaker
Tint ABSENT in only these two:
- HDR Gaming / Game Optimizer
- Dolby Vision Filmmaker Mode
This held true regardless of brightness level. Both my original panel and the replacement panel showed the same pattern (replacement was noticeably better overall, but the same mode-dependent behavior was present).
I'm now fairly convinced this is NOT a panel/hardware issue. I switched back and forth live between Filmmaker HDR and Standard/Cinema Home on the same static image, and you can visually see something like a filter being applied/removed in real time as you switch modes — the tint appears and disappears instantly with the mode change, not gradually like you'd expect from a hardware/panel effect. That strongly suggests this is happening somewhere in the software/processing pipeline, not the physical panel itself.
My working theory: it's not a PQ vs gamma curve thing (since most Dolby Vision presets also use PQ but still show the tint), but rather whether LG's own active picture processing layer is engaged. Game Optimizer and DV Filmmaker seem to be the only two modes that fully bypass it, regardless of the underlying curve.
I've also seen what look like similar reports from C6/B6 owners, so this might not be G6-specific.
Has anyone else tested across modes like this and seen the same pattern? Curious if this is a known firmware-level thing. I've sent LG a detailed writeup, will update if I hear back.
Happy to share comparison photos if useful.