[RESPONDED] Battery percentage gets misreported as 0% occasionally

Framework Laptop 13 Linux
22

Just adding my personal experiences with this issue to the thread…

I have a 2023 Framework 13 (12th Gen Intel) that I initially installed Ubuntu 22.04 on, and later upgraded to Ubuntu 24.04.
I’ve been having a similar issue with the battery charge sporadically reporting a value below 10% for a second or two before going back to 90+%. The graph of the charge (according to the “Power Statistics” application) looks like this.

Screenshot from 2024-07-15 13-20-02
Screenshot from 2024-07-15 13-20-021252×950 73 KB

Screenshot from 2024-07-31 10-39-26
Screenshot from 2024-07-31 10-39-261126×826 62.3 KB

I see this behavior whether I’m discharging the battery or have my power adapter connected. I have set my battery charge limit in the BIOS to 96%, which is why the graphs never get to 100%.

I changed my battery from the 55Wh unit to the 61Wh unit about 2 months ago, and have continued to see this issue.
I saw the issue when I was running Ubuntu 22, and have continued to see the issue after upgrading to Ubuntu 24.

I’ll have to check and see if I see the cros_ec_lpcs cros_ec_lpcs.0: packet too long error that others have reported seeing in dmesg.

23

Just want to report I’ve also been seeing this regularly on an 11th gen i5. I very rarely use my laptop without the charger plugged in. Max battery percentage is set to 85% and I use either the Framework charger or a Steam Deck charger which both keep the laptop at 84 or 85%.

Every 20 mins to half an hour I get a random single-digit battery percentage reported, asking me to shut down or hibernate, and the following messages:

[97327.451094] cros_ec_lpcs cros_ec_lpcs.0: bad packet checksum f7
[98371.937386] cros_ec_lpcs cros_ec_lpcs.0: bad packet checksum f7

I’ve had these or the “bad packet length” messages for the memorable past (at least a year, maybe 2) and I’m somewhat surprised it hasn’t been fixed yet.

24

It has, by @jubnut, for kernel 6.11+

2 Likes
25

@Nine_Mile Kernel 6.11 will be released this month, but in the meantime you can use the prototype version of my kernel patches:

26

It is happening on my 1240p too. That bug sucks.