About once per second this message is logged to journalctl:
Jul 02 13:12:01 ubuntu-phablet ofonod[4404]: Power request failed: OPERATION_NOT_ALLOWED
The only google result for "ofonod" "Power request failed" "OPERATION_NOT_ALLOWED" is this thread about another Volla phone: https://forum.sailfishos.org/t/the-volla-x23-gx4-thread/15726/88. But it is not specifically about this issue, so I thought I'd create a new thread specifically for it.
As far as I can tell this message is harmless: I can call the mobile number and the phone rings. I can call other numbers from this phone. I only wonder what it takes to get rid of this message - and does it indicate higher than intended power draw?
When I run sudo systemctl stop ofono.service
and sudo /usr/sbin/ofonod -P ril --nodetach --debug
I see that the full message produced every second is
ofonod[4404]: src/binder_radio.c:binder_radio_power_request_retry_cb() slot2
slot2 < [000002e0] 24 setRadioPower
0000: 61 6e 64 72 6f 69 64 2e 68 61 72 64 77 61 72 65 android. hardware
0010: 2e 72 61 64 69 6f 40 31 2e 30 3a 3a 49 52 61 64 .radio@1 .0::IRad
0020: 69 6f 00 00 e0 02 00 00 01 00 00 00 io...... ....
slot2 > [000002e0] 23 setRadioPowerResponse OPERATION_NOT_ALLOWED
0000: 61 6e 64 72 6f 69 64 2e 68 61 72 64 77 61 72 65 android. hardware
0010: 2e 72 61 64 69 6f 40 31 2e 30 3a 3a 49 52 61 64 .radio@1 .0::IRad
0020: 69 6f 52 65 73 70 6f 6e 73 65 00 00 85 2a 74 70 ioRespon se...*tp
0030: 00 00 00 00 60 50 19 b1 7f 00 00 00 0c 00 00 00 ....`P.. ........
0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........ ........
0050: 00 00 00 00 ....
ofonod[4404]: Power request failed: OPERATION_NOT_ALLOWED
ofonod[4404]: src/binder_radio.c:binder_radio_check_state() slot2 retry scheduled
but likewise the only google result for "setRadioPowerResponse" "OPERATION_NOT_ALLOWED" is the android source code.
What's next? Does this originate somewhere in the android driver stack? Could there be a way to allow this operation or might this be something the android driver generally does not allow and ofonod should be changed to stop retrying when OPERATION_NOT_ALLOWED is returned?