So instead of letting the original manufacturer know what you need from their product, you just expect a 3rd party with absolutely no spec or documentation make it work for you, for free.
When I bought the hardware (Alienware 17 R1), I needed it to do one thing: run Windows. And it keeps doing that and will keep doing that for several years more when I'll install ESU updates and even Windows 10 LTSC 2021 IoT on it (supported until 2032). The Alienware Area-51m can even run Windows 11.
It's OP who proposed that "SteamOS needs to be marketed to Windows 10 and 7 gamers as an escape route to keep their expensive gaming hardware going from Microsoft's end of support", NOT me. I explained why this won't work, considering the hardware diversity and proprietary drivers situation is most pronounced in gaming rigs and gaming laptops. Then you interjected with your quite frankly useless ranting about how I am entitled for something I don't want to do and didn't even propose in the first place. And just to pre-empt another useless interjection, I am not saying SteamOS is bad, I'll buy it pre-installed on supported hardware when I want to.
unless it's completely proprietary crap, in which case it's on the proprietary vendor to make it work (Alienware / Razer garbage).
See? This is what you don't understand: As a gamer, I want such "Alienware / Razer garbage" to work and don't care who's responsibility is to make it work, I'd rather stay with some Windows 10 LTSC than bother my beautiful mind with blame games about "who's responsibility it is to make it work with Linux" that offer me no value. Also, I am not interested in hearing your rants about evil hardware vendors not opening up their hardware interfaces either.
5.1 audio hardware is basically already recognized and used under Linux.
Gaming hardware has a special TRRS mini jack for headsets (in addition to the usual TRS line-out jack and microphone mini jack) which may or may not work under Linux. It also has the ability to remap the mini jacks to output analog 5.1 audio. I have an Alienware 17 R1 that has such a thing. The Windows driver also comes with Dolby equaliser filters that make the laptop speakers sound better. None of those three features are guaranteed to work under Linux. All you are guaranteed to get is a basic HDA driver.
Same with WiFi and Bluetooth.
WiFi chips from Broadcom are notorious for not working well under Linux. Yes, I know, Broadcom is evil. I don't care, that's what my laptop has.
Brightness and volume controls are an HID standard, supported for quite some time now even on weird laptop shit that changes by the model.
About HID, even if we assume again there is support for brightness and volume controls, there is stuff such as RGB controls and fan speed controls that isn't well-supported in Linux. For example, my Alienware Area-51m R1 has a special Windows utility to change fan speed profiles (quiet, normal, performance, full speed). Is this supported under Linux for the particular model? Nobody knows. As another example, all my laptops have RGB lights, and I want to set the keyboard to white and disable all the other RGB lights that are enabled by default. Will this work under Linux? Nobody knows. And then there is stuff like TactX macro keys that I also want to work.
Microsoft didn't do that - the proprietary garbage vendor wrote a driver / config app for Windows.
And here you are, with yet another rant about evil hardware vendors writing proprietary drivers and not opening up their hardware interfaces, despite the fact I've told you I don't want to year any of that.
Why should Valve have to take on such a complex and undefined forever-build just to satisfy you, because you don't want to replace or forego a $100 overpriced widget you bought 5 years ago from a vendor who acts like an asshole?
Because the widget still works? Because it's integrated into a laptop or motherboard that will cost more than $100 to replace? Because I can keep using some Windows 10 LTSC and don't have to care about what Valve can or can't do?
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