TLP does not apply bat charge threshold in linux 7.1/ASUS zenbook

[leejm516]

[x] I've read and accepted the Bug Reporting Howto
[x] I've provided all required tlp-stat outputs via Gist (see below)

Describe the bug

• TLP does not apply bat charge limit (e.g. 80) and the system continue to charge bat to 100% in linux 7.1 kernels.
• This does not happen in linux 7.0 and prior versions.
• The threshold can be set successfully with cli
  (e.g. running # echo 80 | tee /sys/class/power_supply/BAT0/charge_control_end_threshold)

Expected behavior

• The battery charge would stop at the threshold set.

To Reproduce

• install a linux 7.1 kernel
• set bat thresholds in /etc/tlp.conf
• enable systemd service

Additional context
I also reported this issue to the kernel Bugzilla.
https://bugzilla.kernel.org/show_bug.cgi?id=221673

[leejm516]

I will attach the tlp-stat results soon

[leejm516]

With linux kernel 7.1.1

user1@gentoo-zenbook ~ $ sudo tlp-stat
Password:
--- TLP 1.10.1 --------------------------------------------

+++ Configured Settings:
defaults.conf L0006: TLP_ENABLE="1"
defaults.conf L0007: TLP_WARN_LEVEL="3"
defaults.conf L0008: TLP_MSG_COLORS="91 93 1 92"
defaults.conf L0009: TLP_AUTO_SWITCH="2"
defaults.conf L0010: TLP_PROFILE_AC="PRF"
defaults.conf L0011: TLP_PROFILE_BAT="BAL"
defaults.conf L0012: DISK_IDLE_SECS_ON_AC="0"
defaults.conf L0013: DISK_IDLE_SECS_ON_BAT="2"
defaults.conf L0014: MAX_LOST_WORK_SECS_ON_AC="15"
defaults.conf L0015: MAX_LOST_WORK_SECS_ON_BAT="60"
defaults.conf L0016: CPU_ENERGY_PERF_POLICY_ON_AC="balance_performance"
defaults.conf L0017: CPU_ENERGY_PERF_POLICY_ON_BAT="balance_power"
defaults.conf L0018: CPU_ENERGY_PERF_POLICY_ON_SAV="power"
defaults.conf L0019: PLATFORM_PROFILE_ON_AC="performance"
defaults.conf L0020: PLATFORM_PROFILE_ON_BAT="balanced"
defaults.conf L0021: PLATFORM_PROFILE_ON_SAV="low-power"
defaults.conf L0022: NMI_WATCHDOG="0"
defaults.conf L0023: DISK_DEVICES="nvme0n1 sda"
defaults.conf L0024: DISK_APM_LEVEL_ON_AC="254 254"
defaults.conf L0025: DISK_APM_LEVEL_ON_BAT="128 128"
defaults.conf L0026: DISK_APM_CLASS_DENYLIST="usb ieee1394"
defaults.conf L0027: DISK_IOSCHED="keep keep"
defaults.conf L0028: SATA_LINKPWR_ON_AC="med_power_with_dipm"
defaults.conf L0029: SATA_LINKPWR_ON_BAT="med_power_with_dipm"
defaults.conf L0030: AHCI_RUNTIME_PM_ON_AC="on"
defaults.conf L0031: AHCI_RUNTIME_PM_ON_BAT="auto"
defaults.conf L0032: AHCI_RUNTIME_PM_TIMEOUT="15"
defaults.conf L0033: PCIE_ASPM_ON_AC="default"
defaults.conf L0034: PCIE_ASPM_ON_BAT="default"
defaults.conf L0035: PCIE_ASPM_ON_SAV="default"
defaults.conf L0036: INTEL_GPU_POWER_PROFILE_ON_AC="base"
defaults.conf L0037: INTEL_GPU_POWER_PROFILE_ON_BAT="power_saving"
defaults.conf L0038: INTEL_GPU_POWER_PROFILE_ON_SAV="power_saving"
defaults.conf L0039: RADEON_DPM_PERF_LEVEL_ON_AC="auto"
defaults.conf L0040: RADEON_DPM_PERF_LEVEL_ON_BAT="auto"
defaults.conf L0041: RADEON_DPM_PERF_LEVEL_ON_SAV="low"
defaults.conf L0042: AMDGPU_ABM_LEVEL_ON_AC="0"
defaults.conf L0043: AMDGPU_ABM_LEVEL_ON_BAT="1"
defaults.conf L0044: AMDGPU_ABM_LEVEL_ON_SAV="3"
defaults.conf L0045: WIFI_PWR_ON_AC="off"
defaults.conf L0046: WIFI_PWR_ON_BAT="on"
defaults.conf L0047: WOL_DISABLE="Y"
defaults.conf L0048: SOUND_POWER_SAVE_ON_AC="1"
defaults.conf L0049: SOUND_POWER_SAVE_ON_BAT="1"
defaults.conf L0050: SOUND_POWER_SAVE_CONTROLLER="Y"
defaults.conf L0051: BAY_POWEROFF_ON_AC="0"
defaults.conf L0052: BAY_POWEROFF_ON_BAT="0"
defaults.conf L0053: BAY_DEVICE="sr0"
defaults.conf L0054: RUNTIME_PM_ON_AC="on"
defaults.conf L0055: RUNTIME_PM_ON_BAT="auto"
defaults.conf L0056: RUNTIME_PM_DRIVER_DENYLIST="amdgpu mei_me nouveau nvidia xhci_hcd"
defaults.conf L0057: USB_AUTOSUSPEND="1"
defaults.conf L0058: USB_EXCLUDE_AUDIO="1"
defaults.conf L0059: USB_EXCLUDE_BTUSB="0"
defaults.conf L0060: USB_EXCLUDE_PHONE="0"
defaults.conf L0061: USB_EXCLUDE_PRINTER="1"
defaults.conf L0062: USB_EXCLUDE_WWAN="0"
defaults.conf L0063: RESTORE_DEVICE_STATE_ON_STARTUP="0" #! Parameter is deprecated: feature will be removed with the next release
defaults.conf L0064: RESTORE_THRESHOLDS_ON_BAT="1"
defaults.conf L0065: NATACPI_ENABLE="1"
defaults.conf L0066: TPSMAPI_ENABLE="1"
/etc/tlp.conf L0592: START_CHARGE_THRESH_BAT0="75"
/etc/tlp.conf L0594: STOP_CHARGE_THRESH_BAT0="80"

+++ System Info
System         = ASUSTeK COMPUTER INC. 1.0        Zenbook 15 UM3504DA_UM3504DA
BIOS           = American Megatrends International, LLC. UM3504DA.312
OS release     = Gentoo Linux
Kernel         = 7.1.1-gentoo #1 SMP PREEMPT_DYNAMIC Sat Jun 20 21:07:00 KST 2026 x86_64
/proc/cmdline  = BOOT_IMAGE=/@boot/kernel-7.1.1-gentoo root=UUID=c70c879d-5277-4592-b08d-ceb58bc17c84 ro rootflags=subvol=@
Init system    = systemd 260
Boot mode      = UEFI
Suspend mode   = [s2idle]

+++ TLP Status
tlp            = enabled, last run: 10:00:18 PM, 16 sec(s) ago
tlp-rdw        = enabled
tlp-pd         = enabled, running
TLP profile    = performance/AC
Power source   = AC

+++ Processor
CPU model = AMD Ryzen 7 7735U with Radeon Graphics

/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver    = amd-pstate-epp
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors = performance powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq  =  1103635 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq  =  4821140 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq  =   406603 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq  =  4821140 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/amd_pstate_lowest_nonlinear_freq  =  1103635 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/amd_pstate_max_freq               =  4821140 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference = balance_performance [EPP]
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences = default performance balance_performance balance_power power custom

/sys/devices/system/cpu/cpu1..cpu15: omitted for clarity, use -v to show all

/sys/devices/system/cpu/amd_pstate/status              = active
/sys/devices/system/cpu/cpufreq/boost                  = 1
/sys/module/workqueue/parameters/power_efficient       = Y
/proc/sys/kernel/nmi_watchdog                          = 0

+++ Platform
/sys/firmware/acpi/platform_profile                    = performance
/sys/firmware/acpi/platform_profile_choices            = quiet balanced performance

+++ Temperatures
CPU temp (acpitz)      =   51 [°C]
Fan speed (fan1)       = 3600 [/min]

+++ File System
/proc/sys/vm/laptop_mode               =     0
/proc/sys/vm/dirty_writeback_centisecs =  1500
/proc/sys/vm/dirty_expire_centisecs    =  1500
/proc/sys/vm/dirty_ratio               =    20
/proc/sys/vm/dirty_background_ratio    =    10
/proc/sys/fs/xfs/xfssyncd_centisecs    =  1500

+++ Disks
Devices = nvme0n1 sda

/dev/nvme0n1:
  Type       = NVMe
  Disk ID    = nvme-imation_M.2_PCIe_2TB_SSD_Q971_****************
  Model      = imation M.2 PCIe 2TB SSD Q971
  Firmware   = ELFMC1.0
  Temp       = 40 °C
  Scheduler  = none mq-deadline [kyber] (multi queue)

  Runtime PM:
    /sys/block/nvme0n1/device/power/control = on, autosuspend_delay_ms = (not available)

  SMART info:
    Critical Warning:                   0x00
    Temperature:                        40 Celsius
    Available Spare:                    100%
    Available Spare Threshold:          5%
    Percentage Used:                    13%
    Data Units Written:                 129,381,362 [66.2 TB]
    Power Cycles:                       2,232
    Power On Hours:                     3,358
    Unsafe Shutdowns:                   291
    Media and Data Integrity Errors:    0

/dev/sda: not present.

+++ AMD Radeon Graphics
/sys/class/drm/card1/device/driver                                = amdgpu
/sys/class/drm/card1/device/power_state                           = D0
/sys/class/drm/card1/device/power_dpm_force_performance_level     = auto
/sys/class/drm/card1/card1-eDP-1/amdgpu/panel_power_savings       = (not available)

+++ Wireless
bluetooth = on
nfc       = none (no device)
wifi      = on
wwan      = none (no device)

hci0(btusb)                   : bluetooth, not connected
wlan0(mt7921e)                : wifi, connected, power management = off

+++ Audio
/sys/module/snd_hda_intel/parameters/power_save            = 1
/sys/module/snd_hda_intel/parameters/power_save_controller = Y

+++ PCIe Active State Power Management
/sys/module/pcie_aspm/parameters/policy = [default] performance powersave powersupersave (using BIOS preferences)

+++ PCIe Runtime Power Management
Autosuspend       = enabled
Enable devices    = (disabled)
Disable devices   = (disabled)
Device denylist   = (disabled)
Driver denylist   = amdgpu mei_me nouveau nvidia xhci_hcd

/sys/bus/pci/devices/0000:00:00.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:00.2/power/control = on   (0x080600, IOMMU, no driver)
/sys/bus/pci/devices/0000:00:01.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:02.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:02.2/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:02.4/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:03.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:04.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:04.1/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:08.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:08.1/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:08.3/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:14.0/power/control = on   (0x0c0500, SMBus, piix4_smbus)
/sys/bus/pci/devices/0000:00:14.3/power/control = on   (0x060100, ISA bridge, no driver)
/sys/bus/pci/devices/0000:00:18.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.1/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.2/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.3/power/control = on   (0x060000, Host bridge, k10temp)
/sys/bus/pci/devices/0000:00:18.4/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.5/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.6/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.7/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:01:00.0/power/control = on   (0x028000, Network controller, mt7921e)
/sys/bus/pci/devices/0000:02:00.0/power/control = on   (0x010802, Non-Volatile memory controller, nvme)
/sys/bus/pci/devices/0000:73:00.0/power/control = on   (0x030000, VGA compatible controller, amdgpu)
/sys/bus/pci/devices/0000:73:00.1/power/control = on   (0x040300, Audio device, snd_hda_intel)
/sys/bus/pci/devices/0000:73:00.2/power/control = on   (0x108000, Encryption controller, ccp)
/sys/bus/pci/devices/0000:73:00.3/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:73:00.4/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:73:00.5/power/control = on   (0x048000, Multimedia controller, snd_pci_acp6x)
/sys/bus/pci/devices/0000:73:00.6/power/control = on   (0x040300, Audio device, snd_hda_intel)
/sys/bus/pci/devices/0000:73:00.7/power/control = on   (0x118000, Signal processing controller, pcie_mp2_amd)
/sys/bus/pci/devices/0000:74:00.0/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:74:00.3/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:74:00.4/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:74:00.6/power/control = on   (0x0c0340, USB controller, thunderbolt)

+++ USB
Autosuspend       = enabled
Device allowlist  = (not configured)
Device denylist   = (not configured)
Exclude audio     = enabled
Exclude bluetooth = disabled
Exclude phones    = disabled
Exclude printers  = enabled
Exclude WWAN      = disabled

Bus 001 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 001 Device 002 ID 0489:e0e2 control = auto, autosuspend_delay_ms = 2000 -- Foxconn / Hon Hai Wireless_Device (btusb)
Bus 002 Device 001 ID 1d6b:0003 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 3.0 root hub (hub)
Bus 003 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 003 Device 002 ID 046d:c534 control = on,   autosuspend_delay_ms = 2000 -- Logitech, Inc. Nano Receiver (usbhid)
Bus 004 Device 001 ID 1d6b:0003 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 3.0 root hub (hub)
Bus 005 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 005 Device 002 ID 3277:0033 control = auto, autosuspend_delay_ms = 2000 -- Shinetech USB2.0 FHD UVC WebCam (uvcvideo)
Bus 006 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 007 Device 001 ID 1d6b:0003 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 3.0 root hub (hub)
Bus 008 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 009 Device 001 ID 1d6b:0003 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 3.0 root hub (hub)

+++ Battery Care
Plugin: asus
Supported features: none available
Driver usage:
* natacpi (asus_wmi) = inactive (laptop not supported)

+++ Battery Status: BAT0
/sys/class/power_supply/BAT0/manufacturer                   = ASUSTeK
/sys/class/power_supply/BAT0/model_name                     = ASUS Battery
/sys/class/power_supply/BAT0/cycle_count                    =     74
/sys/class/power_supply/BAT0/energy_full_design             =  67292 [mWh]
/sys/class/power_supply/BAT0/energy_full                    =  64645 [mWh]
/sys/class/power_supply/BAT0/energy_now                     =  57038 [mWh]
/sys/class/power_supply/BAT0/power_now                      =  26007 [mW]
/sys/class/power_supply/BAT0/status                         = Charging

Charge                                                      =   88.2 [%]
Capacity                                                    =   96.1 [%]

+++ Recommendations
* Install ethtool to disable Wake-on-LAN

[leejm516]

With linux 7.0.13

user1@gentoo-zenbook ~ $ sudo tlp-stat
Password:
--- TLP 1.10.1 --------------------------------------------

+++ Configured Settings:
defaults.conf L0006: TLP_ENABLE="1"
defaults.conf L0007: TLP_WARN_LEVEL="3"
defaults.conf L0008: TLP_MSG_COLORS="91 93 1 92"
defaults.conf L0009: TLP_AUTO_SWITCH="2"
defaults.conf L0010: TLP_PROFILE_AC="PRF"
defaults.conf L0011: TLP_PROFILE_BAT="BAL"
defaults.conf L0012: DISK_IDLE_SECS_ON_AC="0"
defaults.conf L0013: DISK_IDLE_SECS_ON_BAT="2"
defaults.conf L0014: MAX_LOST_WORK_SECS_ON_AC="15"
defaults.conf L0015: MAX_LOST_WORK_SECS_ON_BAT="60"
defaults.conf L0016: CPU_ENERGY_PERF_POLICY_ON_AC="balance_performance"
defaults.conf L0017: CPU_ENERGY_PERF_POLICY_ON_BAT="balance_power"
defaults.conf L0018: CPU_ENERGY_PERF_POLICY_ON_SAV="power"
defaults.conf L0019: PLATFORM_PROFILE_ON_AC="performance"
defaults.conf L0020: PLATFORM_PROFILE_ON_BAT="balanced"
defaults.conf L0021: PLATFORM_PROFILE_ON_SAV="low-power"
defaults.conf L0022: NMI_WATCHDOG="0"
defaults.conf L0023: DISK_DEVICES="nvme0n1 sda"
defaults.conf L0024: DISK_APM_LEVEL_ON_AC="254 254"
defaults.conf L0025: DISK_APM_LEVEL_ON_BAT="128 128"
defaults.conf L0026: DISK_APM_CLASS_DENYLIST="usb ieee1394"
defaults.conf L0027: DISK_IOSCHED="keep keep"
defaults.conf L0028: SATA_LINKPWR_ON_AC="med_power_with_dipm"
defaults.conf L0029: SATA_LINKPWR_ON_BAT="med_power_with_dipm"
defaults.conf L0030: AHCI_RUNTIME_PM_ON_AC="on"
defaults.conf L0031: AHCI_RUNTIME_PM_ON_BAT="auto"
defaults.conf L0032: AHCI_RUNTIME_PM_TIMEOUT="15"
defaults.conf L0033: PCIE_ASPM_ON_AC="default"
defaults.conf L0034: PCIE_ASPM_ON_BAT="default"
defaults.conf L0035: PCIE_ASPM_ON_SAV="default"
defaults.conf L0036: INTEL_GPU_POWER_PROFILE_ON_AC="base"
defaults.conf L0037: INTEL_GPU_POWER_PROFILE_ON_BAT="power_saving"
defaults.conf L0038: INTEL_GPU_POWER_PROFILE_ON_SAV="power_saving"
defaults.conf L0039: RADEON_DPM_PERF_LEVEL_ON_AC="auto"
defaults.conf L0040: RADEON_DPM_PERF_LEVEL_ON_BAT="auto"
defaults.conf L0041: RADEON_DPM_PERF_LEVEL_ON_SAV="low"
defaults.conf L0042: AMDGPU_ABM_LEVEL_ON_AC="0"
defaults.conf L0043: AMDGPU_ABM_LEVEL_ON_BAT="1"
defaults.conf L0044: AMDGPU_ABM_LEVEL_ON_SAV="3"
defaults.conf L0045: WIFI_PWR_ON_AC="off"
defaults.conf L0046: WIFI_PWR_ON_BAT="on"
defaults.conf L0047: WOL_DISABLE="Y"
defaults.conf L0048: SOUND_POWER_SAVE_ON_AC="1"
defaults.conf L0049: SOUND_POWER_SAVE_ON_BAT="1"
defaults.conf L0050: SOUND_POWER_SAVE_CONTROLLER="Y"
defaults.conf L0051: BAY_POWEROFF_ON_AC="0"
defaults.conf L0052: BAY_POWEROFF_ON_BAT="0"
defaults.conf L0053: BAY_DEVICE="sr0"
defaults.conf L0054: RUNTIME_PM_ON_AC="on"
defaults.conf L0055: RUNTIME_PM_ON_BAT="auto"
defaults.conf L0056: RUNTIME_PM_DRIVER_DENYLIST="amdgpu mei_me nouveau nvidia xhci_hcd"
defaults.conf L0057: USB_AUTOSUSPEND="1"
defaults.conf L0058: USB_EXCLUDE_AUDIO="1"
defaults.conf L0059: USB_EXCLUDE_BTUSB="0"
defaults.conf L0060: USB_EXCLUDE_PHONE="0"
defaults.conf L0061: USB_EXCLUDE_PRINTER="1"
defaults.conf L0062: USB_EXCLUDE_WWAN="0"
defaults.conf L0063: RESTORE_DEVICE_STATE_ON_STARTUP="0" #! Parameter is deprecated: feature will be removed with the next release
defaults.conf L0064: RESTORE_THRESHOLDS_ON_BAT="1"
defaults.conf L0065: NATACPI_ENABLE="1"
defaults.conf L0066: TPSMAPI_ENABLE="1"
/etc/tlp.conf L0592: START_CHARGE_THRESH_BAT0="75"
/etc/tlp.conf L0594: STOP_CHARGE_THRESH_BAT0="80"

+++ System Info
System         = ASUSTeK COMPUTER INC. 1.0        Zenbook 15 UM3504DA_UM3504DA
BIOS           = American Megatrends International, LLC. UM3504DA.312
OS release     = Gentoo Linux
Kernel         = 7.0.13-gentoo #1 SMP PREEMPT_DYNAMIC Sat Jun 20 10:32:03 KST 2026 x86_64
/proc/cmdline  = BOOT_IMAGE=/@boot/kernel-7.0.13-gentoo root=UUID=c70c879d-5277-4592-b08d-ceb58bc17c84 ro rootflags=subvol=@
Init system    = systemd 260
Boot mode      = UEFI
Suspend mode   = [s2idle]

+++ TLP Status
tlp            = enabled, last run: 10:02:15 PM, 14 sec(s) ago
tlp-rdw        = enabled
tlp-pd         = enabled, running
TLP profile    = performance/AC
Power source   = AC

+++ Processor
CPU model = AMD Ryzen 7 7735U with Radeon Graphics

/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver    = amd-pstate-epp
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor  = powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors = performance powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq  =  1103635 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq  =  4821140 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq  =   406603 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq  =  4821140 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/amd_pstate_lowest_nonlinear_freq  =  1103635 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/amd_pstate_max_freq               =  4821140 [kHz]
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference = balance_performance [EPP]
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences = default performance balance_performance balance_power power

/sys/devices/system/cpu/cpu1..cpu15: omitted for clarity, use -v to show all

/sys/devices/system/cpu/amd_pstate/status              = active
/sys/devices/system/cpu/cpufreq/boost                  = 1
/sys/module/workqueue/parameters/power_efficient       = Y
/proc/sys/kernel/nmi_watchdog                          = 0

+++ Platform
/sys/firmware/acpi/platform_profile                    = performance
/sys/firmware/acpi/platform_profile_choices            = quiet balanced performance

+++ Temperatures
CPU temp (acpitz)      =   50 [°C]
Fan speed (fan1)       = 3900 [/min]

+++ File System
/proc/sys/vm/laptop_mode               =     0
/proc/sys/vm/dirty_writeback_centisecs =  1500
/proc/sys/vm/dirty_expire_centisecs    =  1500
/proc/sys/vm/dirty_ratio               =    20
/proc/sys/vm/dirty_background_ratio    =    10
/proc/sys/fs/xfs/xfssyncd_centisecs    =  1500

+++ Disks
Devices = nvme0n1 sda

/dev/nvme0n1:
  Type       = NVMe
  Disk ID    = nvme-imation_M.2_PCIe_2TB_SSD_Q971_****************
  Model      = imation M.2 PCIe 2TB SSD Q971
  Firmware   = ELFMC1.0
  Temp       = 41 °C
  Scheduler  = none mq-deadline [kyber] (multi queue)

  Runtime PM:
    /sys/block/nvme0n1/device/power/control = on, autosuspend_delay_ms = (not available)

  SMART info:
    Critical Warning:                   0x00
    Temperature:                        41 Celsius
    Available Spare:                    100%
    Available Spare Threshold:          5%
    Percentage Used:                    13%
    Data Units Written:                 129,381,535 [66.2 TB]
    Power Cycles:                       2,232
    Power On Hours:                     3,358
    Unsafe Shutdowns:                   291
    Media and Data Integrity Errors:    0

/dev/sda: not present.

+++ AMD Radeon Graphics
/sys/class/drm/card1/device/driver                                = amdgpu
/sys/class/drm/card1/device/power_state                           = D0
/sys/class/drm/card1/device/power_dpm_force_performance_level     = auto
/sys/class/drm/card1/card1-eDP-1/amdgpu/panel_power_savings       = (not available)

+++ Wireless
bluetooth = on
nfc       = none (no device)
wifi      = on
wwan      = none (no device)

hci0(btusb)                   : bluetooth, not connected
wlan0(mt7921e)                : wifi, connected, power management = off

+++ Audio
/sys/module/snd_hda_intel/parameters/power_save            = 1
/sys/module/snd_hda_intel/parameters/power_save_controller = Y

+++ PCIe Active State Power Management
/sys/module/pcie_aspm/parameters/policy = [default] performance powersave powersupersave (using BIOS preferences)

+++ PCIe Runtime Power Management
Autosuspend       = enabled
Enable devices    = (disabled)
Disable devices   = (disabled)
Device denylist   = (disabled)
Driver denylist   = amdgpu mei_me nouveau nvidia xhci_hcd

/sys/bus/pci/devices/0000:00:00.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:00.2/power/control = on   (0x080600, IOMMU, no driver)
/sys/bus/pci/devices/0000:00:01.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:02.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:02.2/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:02.4/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:03.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:04.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:04.1/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:08.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:08.1/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:08.3/power/control = on   (0x060400, PCI bridge, pcieport)
/sys/bus/pci/devices/0000:00:14.0/power/control = on   (0x0c0500, SMBus, piix4_smbus)
/sys/bus/pci/devices/0000:00:14.3/power/control = on   (0x060100, ISA bridge, no driver)
/sys/bus/pci/devices/0000:00:18.0/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.1/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.2/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.3/power/control = on   (0x060000, Host bridge, k10temp)
/sys/bus/pci/devices/0000:00:18.4/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.5/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.6/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:00:18.7/power/control = on   (0x060000, Host bridge, no driver)
/sys/bus/pci/devices/0000:01:00.0/power/control = on   (0x028000, Network controller, mt7921e)
/sys/bus/pci/devices/0000:02:00.0/power/control = on   (0x010802, Non-Volatile memory controller, nvme)
/sys/bus/pci/devices/0000:73:00.0/power/control = on   (0x030000, VGA compatible controller, amdgpu)
/sys/bus/pci/devices/0000:73:00.1/power/control = on   (0x040300, Audio device, snd_hda_intel)
/sys/bus/pci/devices/0000:73:00.2/power/control = on   (0x108000, Encryption controller, ccp)
/sys/bus/pci/devices/0000:73:00.3/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:73:00.4/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:73:00.5/power/control = on   (0x048000, Multimedia controller, snd_pci_acp6x)
/sys/bus/pci/devices/0000:73:00.6/power/control = on   (0x040300, Audio device, snd_hda_intel)
/sys/bus/pci/devices/0000:73:00.7/power/control = on   (0x118000, Signal processing controller, pcie_mp2_amd)
/sys/bus/pci/devices/0000:74:00.0/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:74:00.3/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:74:00.4/power/control = auto (0x0c0330, USB controller, xhci_hcd)
/sys/bus/pci/devices/0000:74:00.6/power/control = on   (0x0c0340, USB controller, thunderbolt)

+++ USB
Autosuspend       = enabled
Device allowlist  = (not configured)
Device denylist   = (not configured)
Exclude audio     = enabled
Exclude bluetooth = disabled
Exclude phones    = disabled
Exclude printers  = enabled
Exclude WWAN      = disabled

Bus 001 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 001 Device 002 ID 0489:e0e2 control = auto, autosuspend_delay_ms = 2000 -- Foxconn / Hon Hai Wireless_Device (btusb)
Bus 002 Device 001 ID 1d6b:0003 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 3.0 root hub (hub)
Bus 003 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 003 Device 002 ID 046d:c534 control = on,   autosuspend_delay_ms = 2000 -- Logitech, Inc. Nano Receiver (usbhid)
Bus 004 Device 001 ID 1d6b:0003 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 3.0 root hub (hub)
Bus 005 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 005 Device 002 ID 3277:0033 control = auto, autosuspend_delay_ms = 2000 -- Shinetech USB2.0 FHD UVC WebCam (uvcvideo)
Bus 006 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 007 Device 001 ID 1d6b:0003 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 3.0 root hub (hub)
Bus 008 Device 001 ID 1d6b:0002 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 2.0 root hub (hub)
Bus 009 Device 001 ID 1d6b:0003 control = auto, autosuspend_delay_ms =    0 -- Linux Foundation 3.0 root hub (hub)

+++ Battery Care
Plugin: asus
Supported features: charge threshold
Driver usage:
* natacpi (asus_wmi) = active (charge threshold)
Parameter value range:
* STOP_CHARGE_THRESH_BAT0/1: 1..100(default)

+++ Battery Status: BAT0
/sys/class/power_supply/BAT0/manufacturer                   = ASUSTeK
/sys/class/power_supply/BAT0/model_name                     = ASUS Battery
/sys/class/power_supply/BAT0/cycle_count                    =     74
/sys/class/power_supply/BAT0/energy_full_design             =  67292 [mWh]
/sys/class/power_supply/BAT0/energy_full                    =  64645 [mWh]
/sys/class/power_supply/BAT0/energy_now                     =  57692 [mWh]
/sys/class/power_supply/BAT0/power_now                      =      0 [mW]
/sys/class/power_supply/BAT0/status                         = Not charging

/sys/class/power_supply/BAT0/charge_control_end_threshold   =     80 [%]

Charge                                                      =   89.2 [%]
Capacity                                                    =   96.1 [%]

+++ Recommendations
* BAT0 charge is above the stop threshold. Run your laptop on battery power until the battery is discharged to the stop threshold.
* Install ethtool to disable Wake-on-LAN

[linrunner]

So obviously charge_control_end_threshold is present with the 7.0.3 kernel, but absent with 7.1.1. That's a regression in the kernel. Thanks for the info. Unfortunately, there's nothing I can do for you on the TLP side.

[leejm516]

Hmm... strange. I can see charge_control_end_threshold in kernel 7.1, and can set limit manually.
Let's see the kernel developers' response.

user1@gentoo-zenbook ~ $ ls /sys/class/power_supply/BAT0/
device      subsystem       charge_control_end_threshold  energy_now    present        type
extensions  alarm           cycle_count                   manufacturer  serial_number  uevent
hwmon1      capacity        energy_full                   model_name    status         voltage_min_design
power       capacity_level  energy_full_design            power_now     technology     voltage_now

[linrunner]

Strange. Please show the output of

ls -l /sys/class/power_supply/BAT0/
[ -f /sys/class/power_supply/BAT0/charge_control_end_threshold ] && echo "exist"
cat /sys/class/power_supply/BAT0/charge_control_end_threshold; echo $?

sudo sh -x /usr/sbin/tlp noop 

The latter long output via https://gist.github.com/ please.

[leejm516]

This is the result immediately after reboot (i.e. no manual threshold set).

user1@gentoo-zenbook ~ $ ls -l /sys/class/power_supply/BAT0/
total 0
lrwxrwxrwx 1 root root    0 Jun 20 23:43 device -> ../../../PNP0C0A:00
drwxr-xr-x 2 root root    0 Jun 20 23:43 extensions
drwxr-xr-x 3 root root    0 Jun 20 23:43 hwmon1
drwxr-xr-x 2 root root    0 Jun 20 23:43 power
lrwxrwxrwx 1 root root    0 Jun 20 23:43 subsystem -> ../../../../../../../../../class/power_supply
-rw-r--r-- 1 root root 4096 Jun 20 23:43 alarm
-r--r--r-- 1 root root 4096 Jun 20 23:43 capacity
-r--r--r-- 1 root root 4096 Jun 20 23:43 capacity_level
-rw-r--r-- 1 root root 4096 Jun 20 23:43 charge_control_end_threshold
-r--r--r-- 1 root root 4096 Jun 20 23:43 cycle_count
-r--r--r-- 1 root root 4096 Jun 20 23:43 energy_full
-r--r--r-- 1 root root 4096 Jun 20 23:43 energy_full_design
-r--r--r-- 1 root root 4096 Jun 20 23:43 energy_now
-r--r--r-- 1 root root 4096 Jun 20 23:43 manufacturer
-r--r--r-- 1 root root 4096 Jun 20 23:43 model_name
-r--r--r-- 1 root root 4096 Jun 20 23:43 power_now
-r--r--r-- 1 root root 4096 Jun 20 23:43 present
-r--r--r-- 1 root root 4096 Jun 20 23:43 serial_number
-r--r--r-- 1 root root 4096 Jun 20 23:43 status
-r--r--r-- 1 root root 4096 Jun 20 23:43 technology
-r--r--r-- 1 root root 4096 Jun 20 23:43 type
-rw-r--r-- 1 root root 4096 Jun 20 23:43 uevent
-r--r--r-- 1 root root 4096 Jun 20 23:43 voltage_min_design
-r--r--r-- 1 root root 4096 Jun 20 23:43 voltage_now

user1@gentoo-zenbook ~ $ [ -f /sys/class/power_supply/BAT0/charge_control_end_threshold ] && echo "exist"
exist

user1@gentoo-zenbook ~ $ cat /sys/class/power_supply/BAT0/charge_control_end_threshold; echo $?
cat: /sys/class/power_supply/BAT0/charge_control_end_threshold: No data available
1

When I set manually, the third one is:

user1@gentoo-zenbook ~ $ echo 80 | sudo tee /sys/class/power_supply/BAT0/charge_control_end_threshold
Password:
80
user1@gentoo-zenbook ~ $ cat /sys/class/power_supply/BAT0/charge_control_end_threshold; echo $?
80
0

Result for the final one:
https://gist.github.com/leejm516/fee3eeb683c4d11a9bdd7613431990a1

[linrunner]

Here's the culprit:

user1@gentoo-zenbook ~ $ cat /sys/class/power_supply/BAT0/charge_control_end_threshold; echo $?
cat: /sys/class/power_supply/BAT0/charge_control_end_threshold: No data available
1

It seems the kernel isn't initializing charge_control_end_threshold on boot. You can only read it after you've written to it. Please check with kernel 7.0.3 to see if it allows reading before writing.

[leejm516]

Here's the result in 7.0.13 with tlp disabled

user1@gentoo-zenbook ~ $ cat /sys/class/power_supply/BAT0/charge_control_end_threshold; echo $?
100
0

This means the kernel 7.1 is wrong somehow.

[linrunner]

There's the offender: torvalds/linux@186bf90

I'd call it a violation of the fundamental “never break userspace” kernel rule. Oh well, yet another workaround. Sigh.

Stay tuned.