Apple MacBook Pro 13-Inch "Core i5" 2.5 / "Core i7 2.9" (Mid-2012)

Identifiers: Mid-2012 - MD101LL/A* (i5) - MD102LL/A (i7) - MacBookPro9,2 - A1278/2554*

Backlight (brightness) control		Requires asmc(4) and acpi_video(4) drivers
Input devices	Keyboard backlight		Requires asmc(4) and acpi_video(4) drivers

Touchpad

Requires wsp(4) driver

Media keys	Brightness keys	Requires sysutils/asmctl port
	Volume keys	Doesn't work out of the box
Network	Ethernet	✔	Works out of the box with bge(4) driver
	Wi-Fi	✘	BCM4331's driver not ready yet
Other	Battery	✔	Works out of the box
	Bluetooth		Untested but detected
	CD/DVD drive	✔	Works out of the box
	Fan		Requires coretemp(4) driver
	SD card reader	✔	Works out of the box
	Suspend & resume		Requires sysctl hw.acpi.lid_switch_state=S3
	Webcam		Untested but detected
	Ports	DisplayPort	Untested but detected
		FireWire	Untested but detected
		Thunderbolt	✘
		USB	✔
		Headphone jack	✔ Available on pcm1
Sound	Speakers		Requires tweaking to power up the sub-woofer
Last update: 2021-06-13 12:58:27+0200

• Legend
  • ✔ OK
  • Somewhat OK: requires additional tweaking or works worse than expected
  • Present but status unknown or untested
  • ✘ Does not work
  • nothing Not sure if present

• Internal battery is detected out of the box. Maximum efficiency while on battery is done with powerd(8) and the following settings on /etc/rc.conf:

# Enable powerd(8) at boot
powerd_enable="YES"

# powerd(8) flags
power_flags="-n min -a hiadaptive -b adaptive"

• Fan control needs the asmc(4) driver. Once the driver loaded with kldload asmc, control of the fan is done with sysctl(8). For example, the following would set the fan speed running at 3200 RPM:

sysctl dev.asmc.0.fan.0.minspeed=3200

• A quick and dirty shell script to control the fan based on the current temperature of the cpu: asmcfan

• Make a cronjob running every minute on /etc/crontab (or root's crontab by making the proper change on the cron entry below):

# Setting fan speed based on current temperature
*	*	*	*	*	root	/opt/local/bin/asmcfan

• Kernel driver for the Cirrus Logic CS4206: snd_hda(4)

• List of pcm devices:

% cat /dev/sndstat 
FreeBSD Audio Driver (64bit 2009061500/amd64)
Installed devices:
pcm0: <Cirrus Logic CS4206 (Internal Analog 3.1/2.0)> on hdaa0  (1p:4v/1r:4v) default
pcm1: <Cirrus Logic CS4206 (Analog Headphones)> on hdaa0  (1p:1v/0r:0v)
pcm2: <Cirrus Logic CS4206 (Digital)> on hdaa0  (1p:1v/0r:0v)
No devices installed from userspace.

• By default, sound is tiny (it does sound muffled). These laptops has 2 internal speakers (the right is tied to a tiny sub-woofer) so the default pin assignment should be corrected by inverting sequence of internal speakers pins that are in the same association to correctly power up the sub-woofer. From snd_hda(4) sequences are explained:

For multichannel input/output associations sequence
numbers encode channel pairs positions: 0 - Front, 1 -
Center/LFE, 2 - Back, 3 - Front Wide Center, 4 - Side.
Standard combinations are: (0) - Stereo; (0, 2), (0,
4) - Quadro; (0, 1, 2), (0, 1, 4) - 5.1; (0, 1, 2, 4)
- 7.1.

• To correct this the pins need to be ajusted via sysctl(8). Put this on /etc/sysctl.conf:

hint.hdaa.0.nid10.config="seq=0"
hint.hdaa.0.nid11.config="seq=1"

• Reference: https://forums.FreeBSD.org/threads/how-to-solve-tiny-sound-on-a-macbook-pro-9-2-mid-2012.80741/

• The sound may be too low out of the box. Raise up the relative level with:

sysctl hw.snd.vpc_0db=1

• The autosense of the headphone jack port while being correctly detected does not work when in the same association as the speakers and use the correct seq=15. Use a graphical mixer (ie. audio/gtk-mixer) or sysctl hw.snd.default_unit=1 to switch to the headphones as a workaround.

• Equalizers in mixer applications are possible via the following device hints on /boot/loader.conf:

# Enable equalizer in mixer applications for internal speakers (pcm0)
hint.pcm.0.eq=1
 
# Enable equalizer in mixer applications for analog headphones (pcm1)
hint.pcm.1.eq=1
 
# Enable equalizer in mixer applications for digital line (pcm2)
hint.pcm.2.eq=1

• Suspend and resume is working after setting the following in /etc/sysctl.conf.

• To suspend when closing the lid:

hw.acpi.lid_switch_state=S3

• To suspend when using the power button:

hw.acpi.power_button_state=S3

1. The atp(4) driver is old making the trackpad fuzzy. Use the more recent kernel driver wsp(4).

1. Put the following on /etc/sysctl.conf:

hw.usb.wsp.enable_single_tap_clicks: 0
hw.usb.wsp.scr_hor_threshold: 20
hw.usb.wsp.pressure_tap_threshold: 120
hw.usb.wsp.pressure_untouch_threshold: 10
hw.usb.wsp.pressure_touch_threshold: 50
hw.usb.wsp.z_factor: 5
hw.usb.wsp.scale_factor: 12
hw.usb.wsp.debug: 1

1. To make the trackpad working in Xorg, add this to /etc/sysctl.conf:

kern.evdev.rcpt_mask=3

• /var/run/dmesg.boot
• acpidump -dt
• devinfo -v
• pciconf -lv
• asmcfan shell script