5 ms·

Imho the only relevant parts left are: Sleep (which is being tackled right now), USB-C Extra displays (Also WIP) and Hardware Decode for video.

jjtheblunt 4y ago
and audio and screen brightness at least...those don't work on my M2 setup.
- Gigachad 4y ago
  Screen brightness works on the beta kernel. Speakers work but are disabled by default because there is a risk it could blow up the hardware
  - josephcsible 4y ago
    > Speakers work but are disabled by default because there is a risk it could blow up the hardware Wait, what? This sounds like a pretty egregious design flaw on Apple's part.
    - Teongot 4y ago
      There's a good write up of it here https://social.treehouse.systems/@marcan/109917995005981968 https://social.treehouse.systems/@marcan/109917995005981968
    - eyelidlessness 4y ago
      The (very good) writeup conveys this much better than I could, but briefly for folks not inclined to click/read through: it’s a design trade off. Apple’s solution conditionally sends excess power to the speakers—higher power to achieve better sound under safe conditions, lower power to protect the speakers from damage. It’s quite clever (and quite effective, although I’m sure some audiophiles would disagree), but it’s not the kind of design you’d want to use without an equivalent solution. It’s also an unintuitive benefit of having a whole lot of compute headroom to play with, where you can create an intentional footgun that has meaningful benefits but risks physical consequences, and then spend some of that headroom to disarm the gun. A pure software analogy (because that’s what I know better) would be something like: race a bunch of speculative variant algorithms in parallel, knowing that you’re “wasting” compute time, where the probability of speculation being more optimal than hand tuning is high and pathological cases have a “safe” straightforward deoptimization.
    - Gigachad 4y ago
      The tldr is that Apple drives the speakers way past their “always safe” level and then uses software in the OS to detect and dampen the uncommon sounds which could damage the speakers. Resulting in exceptional audio performance. The Asahi Linux devs have already reverse engineered and implemented this safety system but there is a risk they have made a mistake or it doesn’t get enabled due to a bug.
    - astrange 4y ago
      Speakers are just things that move when you send electricity to them. It's not hard to blow up something like that if you try, especially if they heat up over time.
      - josephcsible 4y ago
        Then why isn't this a problem with the built-in speakers of any non-Apple device?
        astrange 4y ago
        It is, you're just not trying hard enough or you're using the official drivers that are software limiting it.
        Gigachad 4y ago
        They either cap them at the “always safe” level which results in much less volume, or you actually can blow them up but you just haven’t played the right sound to trigger it.
- TacticalCoder 4y ago
  > and audio... Overall tip for anyone using Linux and having issues with audio... USB Audio is magical and works wonder. I never bother with the computer's in-board sound: it's USB Audio immediately through a DAC. Works fine. Apple sells $10 USB-C-to-3.5mmjack DAC which are basically a tiny cable (for anyone lamenting it's "too bulky" to have a full-on DAC next to their laptop). For desktops: problem doesn't even register. Just bypass the audio components on your motherboard and use a proper DAC. As an added bonus computers are particularly electrically noisy and a DAC is a great way to do away with all that the noise. So my advice: just use a DAC with Linux. Plug it in. Marvel at "dmesg" showing "USB Audio" and enjoy quality sound.
  - loeg 4y ago
    Be somewhat careful what USB audio device you buy. I've had multiple of these and some of them have tons of EM noise, which is very obnoxious.
    - TacticalCoder 4y ago
      > I've had multiple of these and some of them have tons of EM noise, which is very obnoxious. Ah darn yup! If there's one thing I'd expect from these is to not be noisy! FWIW I'm using a CambridgeAudio DAC and, well, CambridgeAudio is supposed to be a good brand when it comes to audio stuff (amp is CambridgeAudio too).
      - jnsaff2 4y ago
        I've been pretty happy with Dragonfly[0]. Tho they don't come cheap. I have had the black and am currently on the Red, I noticed the difference so I think it's worth it. Have not tried the cobalt. [0] - https://www.audioquest.com/dacs/dragonfly/dragonfly-cobalt https://www.audioquest.com/dacs/dragonfly/dragonfly-cobalt
      - loeg 4y ago
        > CambridgeAudio DAC It looks like these start at $250? I'd expect them to work well. I'm more wary of this pricepoint: > Apple sells $10 USB-C-to-3.5mmjack DAC I've gotten a lot less EM noise with builtin soundcards than cheap USB DACs, but YMMV.
ip26 4y ago
Linux 2013: Sleep support doesn’t work quite yet, but it’s being worked on right now Linux 2023: Sleep support doesn’t work quite yet, but it’s being worked on right now
- tadfisher 4y ago
  You can thank Microsoft for the current mess. S0ix (aka "Modern Standby") doesn't even work right on Windows.
  - bionade24 4y ago
    Linux Laptops with no S3 support use S2, not S0 as on Windows. Still buggy as hell. My XPS sometimes loses 70% in 4 hours standby and then just ~5% in 2 days of standby. Most of the time the battery drain is insane. At least the overheating in bag issue never occured to me.
- antifa 4y ago
  I've still had better experiences with closed laptop lids when using Linux in comparison to windows in the last decade.

jjtheblunt 4y ago

and audio and screen brightness at least...those don't work on my M2 setup.

Gigachad 4y ago
Screen brightness works on the beta kernel. Speakers work but are disabled by default because there is a risk it could blow up the hardware
- josephcsible 4y ago
  > Speakers work but are disabled by default because there is a risk it could blow up the hardware Wait, what? This sounds like a pretty egregious design flaw on Apple's part.
  - Teongot 4y ago
    There's a good write up of it here https://social.treehouse.systems/@marcan/109917995005981968 https://social.treehouse.systems/@marcan/109917995005981968
  - eyelidlessness 4y ago
    The (very good) writeup conveys this much better than I could, but briefly for folks not inclined to click/read through: it’s a design trade off. Apple’s solution conditionally sends excess power to the speakers—higher power to achieve better sound under safe conditions, lower power to protect the speakers from damage. It’s quite clever (and quite effective, although I’m sure some audiophiles would disagree), but it’s not the kind of design you’d want to use without an equivalent solution. It’s also an unintuitive benefit of having a whole lot of compute headroom to play with, where you can create an intentional footgun that has meaningful benefits but risks physical consequences, and then spend some of that headroom to disarm the gun. A pure software analogy (because that’s what I know better) would be something like: race a bunch of speculative variant algorithms in parallel, knowing that you’re “wasting” compute time, where the probability of speculation being more optimal than hand tuning is high and pathological cases have a “safe” straightforward deoptimization.
  - Gigachad 4y ago
    The tldr is that Apple drives the speakers way past their “always safe” level and then uses software in the OS to detect and dampen the uncommon sounds which could damage the speakers. Resulting in exceptional audio performance. The Asahi Linux devs have already reverse engineered and implemented this safety system but there is a risk they have made a mistake or it doesn’t get enabled due to a bug.
  - astrange 4y ago
    Speakers are just things that move when you send electricity to them. It's not hard to blow up something like that if you try, especially if they heat up over time.
    - josephcsible 4y ago
      Then why isn't this a problem with the built-in speakers of any non-Apple device?
      - astrange 4y ago
        It is, you're just not trying hard enough or you're using the official drivers that are software limiting it.
      - Gigachad 4y ago
        They either cap them at the “always safe” level which results in much less volume, or you actually can blow them up but you just haven’t played the right sound to trigger it.
TacticalCoder 4y ago
> and audio... Overall tip for anyone using Linux and having issues with audio... USB Audio is magical and works wonder. I never bother with the computer's in-board sound: it's USB Audio immediately through a DAC. Works fine. Apple sells $10 USB-C-to-3.5mmjack DAC which are basically a tiny cable (for anyone lamenting it's "too bulky" to have a full-on DAC next to their laptop). For desktops: problem doesn't even register. Just bypass the audio components on your motherboard and use a proper DAC. As an added bonus computers are particularly electrically noisy and a DAC is a great way to do away with all that the noise. So my advice: just use a DAC with Linux. Plug it in. Marvel at "dmesg" showing "USB Audio" and enjoy quality sound.
- loeg 4y ago
  Be somewhat careful what USB audio device you buy. I've had multiple of these and some of them have tons of EM noise, which is very obnoxious.
  - TacticalCoder 4y ago
    > I've had multiple of these and some of them have tons of EM noise, which is very obnoxious. Ah darn yup! If there's one thing I'd expect from these is to not be noisy! FWIW I'm using a CambridgeAudio DAC and, well, CambridgeAudio is supposed to be a good brand when it comes to audio stuff (amp is CambridgeAudio too).
    - jnsaff2 4y ago
      I've been pretty happy with Dragonfly[0]. Tho they don't come cheap. I have had the black and am currently on the Red, I noticed the difference so I think it's worth it. Have not tried the cobalt. [0] - https://www.audioquest.com/dacs/dragonfly/dragonfly-cobalt https://www.audioquest.com/dacs/dragonfly/dragonfly-cobalt
    - loeg 4y ago
      > CambridgeAudio DAC It looks like these start at $250? I'd expect them to work well. I'm more wary of this pricepoint: > Apple sells $10 USB-C-to-3.5mmjack DAC I've gotten a lot less EM noise with builtin soundcards than cheap USB DACs, but YMMV.

ip26 4y ago

Linux 2013: Sleep support doesn’t work quite yet, but it’s being worked on right now Linux 2023: Sleep support doesn’t work quite yet, but it’s being worked on right now

tadfisher 4y ago
You can thank Microsoft for the current mess. S0ix (aka "Modern Standby") doesn't even work right on Windows.
- bionade24 4y ago
  Linux Laptops with no S3 support use S2, not S0 as on Windows. Still buggy as hell. My XPS sometimes loses 70% in 4 hours standby and then just ~5% in 2 days of standby. Most of the time the battery drain is insane. At least the overheating in bag issue never occured to me.
antifa 4y ago
I've still had better experiences with closed laptop lids when using Linux in comparison to windows in the last decade.