cannot enter suspend on macbook pro

piramiday · 04-28-2020, 03:46 PM

my old 2012 MacBook Pro had, for several years, and older Linux installed (maybe Mint 18.X).
everything was working out of the box, sleep/suspend included.

I have recently installed Linux Mint 19.3, and now the laptop cannot enter suspend mode.

Code:

user@macbook:~$ inxi -F
System:    Host: macbook Kernel: 5.3.0-46-generic x86_64 bits: 64 Console: tty 1 Distro: Linux Mint 19.3 Tricia 
Machine:   Type: Laptop System: Apple product: MacBookPro6,2 v: 1.0 serial: <root required> 
           Mobo: Apple model: Mac-F22586C8 v: MacBookPro6,2 serial: <root required> UEFI: Apple 
           v: MBP61.88Z.005A.B00.1708072217 date: 08/07/17

if I try to enter suspend, either by closing the laptop lid or, to see what happens, by typing "systemctl suspend" or "sudo pm-suspend", the laptop blanks the screen but does not spin down and the keyboard backlight stays on. waiting won't help.

so, to reiterate, my problem is ENTERING the sleep mode, not coming out of it (although that might be an issue in the future).

with the previous Mint version, everything was working as expected.
any suggestions?

Code:

$ cat /sys/power/mem_sleep 
s2idle [deep]

ugjka · 04-29-2020, 01:20 PM

https://01.org/node/3721

piramiday · 04-29-2020, 02:04 PM

thanks for the link, I'll read through it.
do you have more specific suggestions?

dstoian · 01-29-2023, 08:23 PM

For anyone still struggling with suspend on a macbook here's a solution that worked for me: https://forums.debian.net/viewtopic.php?t=149965

More precisely:

Code:

    1. open terminal: sudo nano /etc/default/grub
    2. go to: GRUB_CMDLINE_LINUX=" " and add to: GRUB_CMDLINE_LINUX="init_on_alloc=0"
    3. save and exit
    4. sudo update-grub
    5. reboot pc