Error: battery discharge/recalibrate not available

[ghost]

Hi,

I can't tlp discharge since version 1.4.0

I had a lot of kernel alerts when I do dmesg -l alerts

BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
Oops: 0010 [#1] SMP NOPTI
CPU: 2 PID: 1473 Comm: tpacpi-bat Tainted: G S OE 5.14.0-kali2-amd64 #1 Debian 5.14.9-2kali1
Hardware name: LENOVO 20HQS17409/20HQS17409, BIOS N1MET67W (1.52 ) 10/05/2021
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffba9ac0843ef0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff931e42ca6cc0 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff931e47ea4500
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffffffffffea R14: ffff931e47ea4500 R15: 0000000000000000
FS: 00007f000ae242c0(0000) GS:ffff9321d1700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000010590a004 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
proc_reg_llseek+0x42/0x80
ksys_lseek+0x7a/0xb0
do_syscall_64+0x38/0xc0
entry_SYSCALL_64_after_hwframe+0x44/0xae

And that's the tlp-stat --battery output
+++ Battery Care
Plugin: thinkpad
Supported features: charge thresholds
Driver usage:
* natacpi (thinkpad_acpi) = active (charge thresholds)
* tpacpi-bat (acpi_call) = inactive (kernel error)
Parameter value ranges:
* START_CHARGE_THRESH_BAT0/1: 0(off)..96(default)..99
* STOP_CHARGE_THRESH_BAT0/1: 1..100(default)

Any ideas ?

[linrunner]

TLP 1.4 is by no means the cause. tlp-stat 1.4 even shows you the real cause:

tpacpi-bat (acpi_call) = inactive (kernel error)

You need a newer version of acpi_call -> nix-community/acpi_call#15

[ghost]

Thanks @linrunner

The new version is working GREAT!!!😄