Cannot change conservation mode on Ideapad S540 13ARE

laurento / gnome-shell-extension-ideapad

Lenovo Ideapad goodies for GNOME Shell. User-friendly battery conservation mode control.

GNU General Public License v3.0

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Cannot change conservation mode on Ideapad S540 13ARE #8

Closed imunique-ZJ closed 3 years ago

imunique-ZJ commented 3 years ago

I was able to change conservation mode, however, it doesn't work after I upgraded the kernel to 5.12 (via mainline). I tried the commands but got Input/Output error...

$ ls /sys/bus/platform/drivers/ideapad_acpi/
bind  module  uevent  unbind  VPC2004:00

$ echo "0" | sudo tee /sys/bus/platform/drivers/ideapad_acpi/VPC2004\:00/conservation_mode > /dev/null
tee: '/sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode': Input/output error

OS: Ubuntu 20.04 Kernel: 5.12.1

laurento commented 3 years ago

What you're describing doesn't seem to be an issue with the extension. For this reason, I'm going to close this issue.

BTW it looks like you're not alone, have a look here for instance.

f-fouad commented 3 years ago

It is a regression on kernel version 5.12. A patch has been sent to fix it.

laurento commented 3 years ago

Thanks for the follow up.