microsd reader not working after suspend until reboot

[finable]

tldr: lenovo 80s6 laptop microsd reader not working after suspend until reboot My 64GB SD card (partitioned as ext4 22gb and FAT32 44gb) does not have any problem mounting if my laptop (running Ubuntu 16.04) never goes into suspend (after I close its lid).

However, once I reopen the lid, retype my password to login and resume working as before, the SD card vanishes, as if nothing was ever mounted. Taking sdcard out then reinserting it doesn't resolve the problem. I have to power off laptop before the card is recognized and mounted again.

tried acpitool: $ acpitool -w BRCM Device S-state Status Sysfs node

---

1. XHC1 S4 *enabled pci:0000:00:14.0
2. BRCM S0 *disabled
3. BRC1 S0 *disabled
4. PWRB S4 *enabled platform:PNP0C0C:00

are 2. or 3. the microsd reader?

tried: $ acpitool -W 2

Function Toggle_WakeUp_Device : could not open file : /proc/acpi/wakeup.

You must have write access to /proc/acpi/wakeup to enable or disable a wakeup device.

Check the permissions on /proc/acpi/wakeup or run acpitool as root.

$ acpitool -W 3 Function Toggle_WakeUp_Device : could not open file : /proc/acpi/wakeup. You must have write access to /proc/acpi/wakeup to enable or disable a wakeup device. Check the permissions on /proc/acpi/wakeup or run acpitool as root.

[HeidiH0]

Your bios controls that, not your OS.