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Linux on an OLED laptop? (lemmy.austinwadeheller.com)

submitted 1 year ago by livingcoder@lemmy.austinwadeheller.com to c/linux@programming.dev

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I'm seeing a lot of old posts about how Linux has poor support for OLED. Is this still the case? Should I avoid OLED laptops?

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[–] Max_P@lemmy.max-p.me 4 points 1 year ago

The only issues I can find online are related to brightness control, which has always been an occasional problem on laptops regardless of the display technology. It's happened and keeps happening with LCD panels too.

In a technical sense 99% of the time the kernel is not even involved in the process. The display output is driven by the GPU, and even then, it drives pretty standard protocols like DVI/HDMI/DP. Even laptops typically work with some sort of internal DVI/DP connector for the panel, which has its own decoder made for the actual OLED panel. The only outlier is brightness control which is sometimes done in a weird hacky way by manufacturers, wherever is more convenient for them. Some do it with ACPI calls, some do it through the GPU (intel_brightness), some do it through proprietary registers or I2C/SPI bus.

It's a "try it and see" kind of situation that depends on the precise hardware combination of a given laptop. Being an OLED might make it more likely by manufacturers to end up with a less standard brightness control, but it's not an OLED-specific problem and I doubt we'll ever see a "all OLEDs are now fixed forever". We might see brightness fixed on this particular laptop from this manufacturer.