j514s (MacBook Pro 14" M3 Pro): M3 handoff works from an Asahi-installer install (stage 1 v1.6.1) #360

Machine: apple,j514s / apple,t6030, MacBook Pro (14-inch, M3 Pro, Nov 2023), 11 cores
Firmware: asahi,os-fw-version = 14.7, asahi,system-fw-version = 26.6.2 (stub 14.8.3, iBoot-10151.140.19.700.2)
Build: aurora-2026.10.17.20, linux-aurora 7.1.12.aurora2-20261017.20, m1n1-aurora 1.6.1.aurora17-5, mesa-m3 26.1.4.m3.2-5, mesa-m3-native-pro 26.1.4.nativepro.20261013-10
m1n1 guard: did not fire
Touch ID: not supported on M3 (apple_sep: no platform profile for this SoC; the SEP stays disabled)
Thunderbolt: no dock, not tested
M3 path: handoff with --m3-handoff

This Mac was set up with the Asahi installer, not the Omarchy one, so m1n1 stage 1 reports clean v1.6.1 rather than v1.6.1-dirty. The released installer refuses --m3-handoff on it ("its m1n1 stage 1 is v1.6.1"). I installed from a branch that admits clean v1.6.1 on j514s/t6030 under the same conditions the Airs already get (14.7 or 14.8.3 OS firmware, the 14.8.3 stub, no oslog overlap) and only with --m3-handoff: https://github.com/cachebag/linux-aurora/tree/j514s-handoff (commit 8d8d84b, with tests). The installer's 40 test_m3_handoff tests pass with it.

What worked

• m1n1 handoff boots: GRUB, then the desktop on the built-in panel, GPU accelerated. No overlap node, three dcp-oslog nodes.
• GPU: OpenGL renderer string: Apple M3 Pro (G15S B1), mesa-m3 session decision=active (Hyprland 0.57.1 started via uwsm start hyprland.desktop).
• Built-in panel 3024x1890 (74 notch rows hidden).
• 120 Hz: stock .20 presents at 60 fps on the 120 Hz mode (es2gears_wayland: 60.0 fps). With .swap_timestamps = true on the T6030 record (PR drm/apple: time-stamp T6030 swaps on 14.7 for 120 Hz #358) it measures 119.9 fps. The numbers below are from a locally rebuilt appledrm.ko with that change; everything else is the stock .20 kernel.
• Lid close suspends with s2idle and lid open resumes (one ~42 s cycle tested): PM: suspend entry (s2idle) / PM: suspend exit.
• Audio (asahi-audio + pipewire-audio): headphone sink, headset mic, j514-mic and j514-convolver filter chains, speakersafetyd running. Headphones work; built-in speakers not tested.
• Wi-Fi, Bluetooth, keyboard, trackpad, battery (macsmc-battery) work.

What did not

• Text console is blank once appledrm takes over (Console: switching to colour frame buffer device 189x59 at ~2.7 s): only 3 swaps in 40 s while typing at the login prompt, so the getty login is invisible. Hyprland renders fine. On the first boot I had to basically log in blind.
• No screen brightness control: no /sys/class/backlight device (IOMFB: Could not find Backlight service). Keyboard backlight (white:kbd_backlight) works.
• Colours: same as J514S (M3 Pro 14"): built-in panel treats the X byte of XRGB8888 scanout as alpha, pure green/blue render black #308. Pure green and blue render black with XRGB8888 scanout; Hyprland patched to prefer ARGB8888 fixes it.
• Two speaker amps fail to probe (see logs); whether the speakers play is untested.

Not tested: external displays (USB-C, HDMI), Thunderbolt, long suspend battery drain, --m3-report.

Logs

$ tr -d '\0' < /proc/device-tree/chosen/asahi,m1n1-stage2-version; echo
v1.6.1-omarchy.aurora17
$ ls /proc/device-tree/soc/dcp@*/apple,t6030-handoff
/proc/device-tree/soc/dcp@28ec00000/apple,t6030-handoff
$ for c in /sys/class/drm/card*-*; do ...; done
/sys/class/drm/card2-DP-1 disconnected
/sys/class/drm/card2-DP-2 disconnected
/sys/class/drm/card2-DP-3 disconnected
/sys/class/drm/card2-eDP-1 connected 3024x1890
/sys/class/drm/card2-HDMI-A-1 disconnected
$ ls /proc/device-tree/chosen/asahi,m1n1-oslog-overlap
ls: cannot access '/proc/device-tree/chosen/asahi,m1n1-oslog-overlap': No such file or directory
$ ls -d /proc/device-tree/reserved-memory/dcp-oslog@*
/proc/device-tree/reserved-memory/dcp-oslog@10003fec000
/proc/device-tree/reserved-memory/dcp-oslog@1000400c000
/proc/device-tree/reserved-memory/dcp-oslog@1000402c000
$ cat /var/lib/aurora-sep/m3-mode
handoff t6030-12

apple-t6030-display: PMP: this Mac's 61 values from /chosen/asahi,t6030-pmp
asahi 292400000.gpu: M3: GPU firmware identified as g15s build b0 (firmware 14.8.3) RTKit-2419.140.12
asahi 292400000.gpu: M3 G15S: power acknowledged, version=0x07031100 counts=0x00110209 core-mask=0x775bd, firmware=RTKit-2419.140.12.release
asahi 292400000.gpu: M3: firmware ready; common DRM GEM/VM frontend registered
[drm] Initialized asahi 0.2.0 for 292400000.gpu on minor 1
[drm] Initialized apple 1.0.0 for soc:display-subsystem on minor 2
apple-dcp 28ec00000.dcp: T6030 display started: 3024x1890@120, 74 notch rows hidden, 302x189 mm
apple-dcp 28ec00000.dcp: RTKit: syslog message: nifiedPipeline.cpp:5404: IOMFB: Could not find Backlight service
apple-dcp 28ec00000.dcp: RTKit: syslog message: PPipeDCP_H13P.cpp:12911: IOMFB: panel charge parity violation [0xf9389ad]
tas2764 0-0038: tas2764_i2c_probe: Failed to parse devicetree
tas2764 0-0039: tas2764_i2c_probe: Failed to parse devicetree