I have two Librem5 phones. Installed the debug kernel above on the one I am not daily driving, and it worked well. Resume from suspend was much, much faster than before and it also wakes up on incoming calls and sms.
With that experience, I installed the same kernel on my primary L5. Resume from suspend is similar although wifi is slower to connect.
I did the following tests with automatic suspend after 1 minute on both and wake up through power button press:
Primary L5 Secondary L5
wlan card: Sparclan Redpine
screen on: 2 secs 2 secs
modem connection: 5 secs 5 secs
wifi connection: 10 secs 5-6 secs
wakes on incoming call/sms: No Yes
One disturbing observation is that the despite being much slower, the Redpine card establishes a wifi connection in about half the time compared to the Sparclan card. This is of course not a major issue, just slightly annoying as the Sparclan card has up to 10x the speed of the Redpine card.
However, the mysterious issue that my primary L5 still doesn’t wake up on incoming calls or sms is more disturbing. Both phones have the following:
purism@pureos:~$ hostnamectl
Static hostname: pureos
Icon name: computer-handset
Chassis: handset
Machine ID: 9b43caf3619f49f8ba467ec270970f44
Boot ID: 65a457099581444da467424a81962cb3
Operating System: PureOS
Kernel: Linux 6.1.0-1-librem5
Architecture: arm64
purism@pureos:~$ lsb_release -a
No LSB modules are available.
Distributor ID: PureOS
Description: PureOS
Release: 10.0
Codename: byzantium
purism@pureos:~$ cat /proc/cmdline
u_boot_version=2022.10-gc4960dade2 console=ttymxc0,115200 quiet fsck.repair=yes security=apparmor splash plymouth.ignore-serial-consoles vt.global_cursor_default=0
What could be the difference? Anything that comes to mind that could prevent my primary phone to wake up?
Edit: Just thought of modem firmware, so I checked. Both have:
firmware revision: MPSS.JO.2.0.2.c1.1-00032-9607_GENNS_PACK-1 1 [Feb 25 2019 01:00:00]