https://bugzilla.kernel.org/show_bug.cgi?id=218901 Bug ID: 218901 Summary: LG Gram Laptop Extra Features not working on 2024 models (16Z90S) Product: Drivers Version: 2.5 Kernel Version: 6.9,6.9.2,6.10-rc1 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: Platform_x86 Assignee: drivers_platform_x86@xxxxxxxxxxxxxxxxxxxx Reporter: agathe@xxxxxxxxxx Regression: No On a 2024 LG Gram laptop, while the year is correctly identified by lg-laptop: `[ 12.865584] [ T528] lg_laptop: product: 16Z90S-G.AD7BF year: 2022 ` some functionnalities such as battery charge limit and reader mode do not work. The only error I have found so far is in dmesg: ```[ 26.841164] [ T837] lg_laptop: Cannot get handle [ 26.865830] [ T1167] lg_laptop: Cannot get handle ``` it seems to be related to ACPI as this is what is returned here: https://github.com/torvalds/linux/blob/master/drivers/platform/x86/lg-laptop.c#L106 (among other emplacements in the code) Trying to read the value in `/sys/devices/platform/lg-laptop/battery_care_limit` or `/sys/class/power_supply/BAT0/charge_control_end_threshold` results in a `cat: /sys/class/power_supply/BAT0/charge_control_end_threshold: Input/output error ` in both cases and trying to write 80 or 100 returns the same error. this also happens for `reader_mode`, `fan_mode`, `usb_charge` and `fn_lock`. I have not tried the other variables but the keyboard lightning does not seem to be impacted by this. I have tried on both new installations of Manjaro and Fedora as well as Fedora Rawhide and Manjaro with a 6.9.2 kernel and 6.10-rc1 kernel freshly compiled. A colleague has the 2023 version of the laptop and the issue is not present on kernel 6.9.1. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
