Go standby blocked

[hermannw]

First of all, thank you for this great piece of software! I have a similar problem with the power consumption as mentioned on other topics here. With everything off, screen dimmed almost to minimum and time out to 15 seconds, the 400mAh battery only lasts about 5-6 hours. Looking at the serial terminal I see this when the watch goes to sleep:

E (3772392) gpio: GPIO wakeup only supports level mode, but edge mode set. gpio_num:39 [I][powermgm.cpp:220] powermgm_loop(): T-Watch2020V3 uptime: 3733 [W][powermgm.cpp:273] powermgm_loop(): go standby blocked

...and then it stays there until woken up again. Is it possible that something is still keeping the watch from going to sleep? If yes, what could that be?

Any help would be appreciated. Hermann

[hermannw]

Must have done something wrong... It seems to work now.

[GDV0]

Hello, I had exactly the same issue with the same TTGO T-Watch 2020 v3 400mAh and I finally found what was wrong. standby was always false returned by this line in powermgm.cpp: I 've discovered that sdcard_powermgm_event_cb returned false. 2 variables (sdcard_mount_failed and sdcard_mounted) initialised to false, exist but unfortunately:

• none of those variables are set in sdcard_setup() function and,

• only sdcard_mount_failed is tested in the callback.

  As it remains set to false, it means SD card should be ok but it's not. That's why callback returns false.

I have fixed my issue with the highlighted modification in sdcard_powermgm_event_cb() function in sdcard.cpp file

and now i have every time this message and the battery decreases from 100% to 75% in 24h when in sleep mode.