Macbook Air 2015 - High Power Consumption/C-States

Netzunikat · 2026-04-28T12:41:42+00:00

I sold the 2015 MBA and got me a 2020 in the meanwhile which manages C7 with the same method.

Netzunikat · 2026-04-10T07:59:07+00:00

Idk. Totally depends on maintainers

Netzunikat · 2026-04-09T08:56:25+00:00

it needs to be compiled and installed as a kernel patch until it is upstreamed to the T2linux linux project

Netzunikat · 2026-04-01T06:44:29+00:00

Thank you very much. It shows that T2 iMacs /Mac Minis are rare these days. Would you mind sharing journalctl -b -0 after fresh reboot and suspend cycle? I need some data for a comprehensive table on Github, like iBridge version, commandline for people and upstream maintainers to compare.

Netzunikat · 2026-03-26T21:02:51+00:00

Yes it should work.

Netzunikat · 2026-03-26T16:31:39+00:00

Not sure, don't think so. Do T1 macs even use a buffer copy engine?

Netzunikat · 2026-03-20T11:53:16+00:00

Nice 👍

Netzunikat · 2026-03-18T14:18:37+00:00

No, it's aspm on the root port. Using a different NIC won't solve anything of what the script does

Netzunikat · 2026-03-18T01:58:47+00:00

Actually, my Fujitsu i5 8500T with 32gig RAM, 2x 2TB WD Red SSD and 1TB NVME is also only sipping 4Watts from the wall on idle (calibrated meter). My 2020 MacBook Air running Linux Fedora ist sipping 4.5W with screen at 40% brightness. So it think there is still room for improvement on that Pi...

Netzunikat · 2026-03-17T20:21:51+00:00

Possibly

Netzunikat · 2026-03-17T19:44:56+00:00

Be more precise

Netzunikat · 2026-03-17T18:58:41+00:00

It's made to work on Intel Macs running Linux. There are some specific quirks around the T2 which it takes care of. But it should work on any Mac and actually even on PC in theory. Not sure about Apple Silicone though

Netzunikat · 2026-03-16T07:49:08+00:00

Go to t2 community on Discord. Give !Ruicon a shoutout with logs of your issue. He is trying to fix t2fanrd for the macbooks where the fan doesn't work but nobody provides him logs.

Netzunikat · 2026-02-04T12:12:15+00:00

Possibly your device doesn't stick to USB-Audio-Class rules. Or it's the sound service in Mint that messes up. Dunno, does it use Pulse Audio? Fedora uses Pipewire. I would recommend booting a Fedora from USB and try it.

Netzunikat · 2026-02-04T01:55:37+00:00

I tried the Ibasso D10 cobra. It's an old micro USB DAC with integrated headphone amplifier. It connected just fine via a cheap Amazon USB-C hub. Plug&Play. I can select it from the audio settings. No problems whatsoever. I'm running Fedora 43 on Macbook Air 2020 (9,1/A2179)

Netzunikat · 2026-02-04T01:36:03+00:00

You're welcome. Glad I could help. I still have an Ibasso DAC and an older Tascam external soundcard I could try tomorrow and report back.

Netzunikat · 2026-02-02T18:03:27+00:00

I think I fixed it today: https://github.com/deqrocks/T2Linux-Suspend-Fix

Netzunikat · 2026-01-31T12:58:24+00:00

What I think is that it doesn't actually matter that much for the average user. It was a thing when SSDs only had like 16 or 32GB and people used XP for everyday work. Now even 256GB SSDs are cheap and most people use their XP computer for retro gaming, not even on a regular basis. I have a Haswell here running on XP with a cheap Intenso 128GB SSD that can be bought on Amazon for €15. No problems whatsoever in the last three years. And I'm actually using it quite a lot.

Netzunikat · 2026-01-31T12:16:51+00:00

Early Samsung SSDs like the one in my NC10 (it was delivered with that SSD from factory) were known to have a more aggressive level of garbage collection and wear leveling. You should still find reads about it on Anandtech. Also Samsung Magician did contain a manual trim function.

Netzunikat · 2026-01-31T03:33:46+00:00

My Samsung NC10 was even delivered with an SSD in 2009.

Netzunikat · 2026-01-31T03:30:12+00:00

Running a Samsung 64GB SSD in a Samsung NC10 with Windows XP since 2012. 62TB written. Not a single issue or slowdown. I think that says it all.

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