WARNING! The code is predominantly AI slop, and this pokes at hardware so YMMV.

z13-tuned

TuneD profiles for a ThinkPad Z13 Gen 1 AMD 6850U.

• z13-balanced: stock powersave plus Z13 extras, CPU boost on, EPP balance_power|power, and ACPI low-power.
• z13-power-saver: inherits z13-balanced, sets EPP to power, and ACPI low-power.
• z13-performance: inherits z13-balanced, sets EPP to balance_performance|performance, and ACPI performance.

AMDGPU ABM/backlight reduction is kept off with panel_power_savings=0. AMDGPU's forced DPM performance level is left at auto in every profile. The installer also builds a systemd-stub UKI addon at /boot/loader/addons/z13-tuned.addon.efi so early kernel/module parameters apply even when KDE Linux downloads prebuilt UKIs. The addon carries an initrd fragment with /etc/modprobe.d/z13-amdgpu.conf for AMDGPU module options:

• abmlevel=0
• aspm=1
• bapm=1
• dpm=1

The addon command line only contains options that are not available through modprobe.d:

• pcie_aspm.policy=powersupersave
• amdgpu.dcdebugmask=0
• amdgpu.dcfeaturemask=0x28b

Reboot after installing for the addon parameters to take effect. If Secure Boot is enabled, the addon must be signed with a trusted key. AMDGPU power_dpm_state is a runtime sysfs setting, not a kernel command-line parameter, and it did not affect iGPU clock behavior on this machine. amdgpu.dcdebugmask=0 is intentionally a kernel command-line override, not a modprobe.d option, so it can append after KDE Linux's shipped amdgpu.dcdebugmask=0x10 and stop disabling AMDGPU PSR on this 680M machine. amdgpu.dcfeaturemask=0x28b preserves the currently enabled 0x2 DC feature bit, adds DC_FBC_MASK (0x1), DC_PSR_MASK (0x8), DC_PSR_ALLOW_SMU_OPT (0x80), and DC_REPLAY_MASK (0x200).

USB autosuspend is enabled with a short delay for fixed internal non-HID devices. Root hubs, removable/external-port devices, and USB HID devices such as keyboards, mice, trackpads, and receivers are kept awake. The internal Synaptics 06cb:0123 fingerprint reader and its xHCI controller are also kept out of runtime suspend. The reader is a USB device and has no independent PCIe ASPM setting.

HDA audio power saving is set to a 1 second idle timeout.

Wi-Fi power save is enabled only in z13-power-saver. z13-balanced and z13-performance keep Wi-Fi power save off and force the wireless PCI function awake for better link quality. Wake-on-Wi-Fi remains disabled.

The bundled ppd.conf maps PPD modes to:

On AC power:

• balanced -> z13-ac-balanced -> z13-performance
• power-saver -> z13-ac-power-saver -> z13-performance
• performance -> z13-performance

On battery:

• balanced -> z13-balanced
• power-saver -> z13-power-saver
• performance -> z13-performance

It also includes ehpsctl, a small replacement for the ELAN haptic touchpad settings loader. The installer builds it, writes a default /etc/z13-tuned/ehps.config, and enables z13-haptic-touchpad.service so the settings are applied on boot.

Package power limits remain under firmware control through the ACPI platform profile. The installer removes binaries installed by older versions of this repository and does not use RyzenAdj or access the SMU directly.

Install:

run0 ./install.sh
run0 systemctl restart tuned.service

Configure the haptic touchpad:

run0 ehpsctl set --click-force medium --feedback-state 4
run0 ehpsctl set --post-button-force high --topzone-post-button on
ehpsctl show

The installer writes to /etc/tuned/profiles, /etc/tuned/ppd.conf, /boot/loader/addons/z13-tuned.addon.efi, /etc/z13-tuned/ehps.config, /opt/z13-tuned/bin, and /etc/systemd/system/z13-haptic-touchpad.service.