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#1 2020-12-29 05:07:22

Registered: 2020-12-29
Posts: 2

ACPI Error: AE_NOT_FOUND on acpi_call (Yoga Slim 7 14ARE05)

Hello! I'm using the Lenovo Yoga Slim 7 14ARE05 and I'm having some issues with switching between performance modes using acpi calls.
( … and_tricks)

~ > inxi -b
System:    Host: archlinux Kernel: 5.9.14-arch1-1 x86_64 bits: 64 Desktop: i3 4.19 Distro: Arch Linux 
Machine:   Type: Laptop System: LENOVO product: 82A2 v: Yoga Slim 7 14ARE05 serial: <superuser/root required> 
           Mobo: LENOVO model: LNVNB161216 v: SDK0J40700 WIN ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 
           serial: <superuser/root required> UEFI: LENOVO v: DMCN34WW date: 08/17/2020 
Battery:   ID-1: BAT1 charge: 24.1 Wh condition: 60.4/60.7 Wh (100%) 
CPU:       Info: 6-Core AMD Ryzen 5 4500U with Radeon Graphics [MCP] speed: 1646 MHz min/max: 1400/2375 MHz 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Renoir driver: amdgpu v: kernel 
           Device-2: IMC Networks Integrated Camera type: USB driver: uvcvideo 
           Display: server: X.Org 1.20.10 driver: amdgpu unloaded: modesetting,vesa resolution: 1920x1080~60Hz 
           OpenGL: renderer: AMD RENOIR (DRM 3.39.0 5.9.14-arch1-1 LLVM 11.0.0) v: 4.6 Mesa 20.3.0 
Network:   Device-1: Intel Wi-Fi 6 AX200 driver: iwlwifi 
Drives:    Local Storage: total: 476.94 GiB used: 146.72 GiB (30.8%) 
Info:      Processes: 211 Uptime: 13m Memory: 13.60 GiB used: 2.20 GiB (16.2%) Shell: Zsh inxi: 3.1.09 
~ > lsmod | grep acpi_call
acpi_call              16384  0

For example,

~ > echo '\_SB.PCI0.LPC0.EC0.VPC0.DYTC 0x000FB001' | sudo tee /proc/acpi/call
\_SB.PCI0.LPC0.EC0.VPC0.DYTC 0x000FB001

gives me the following dmesg line:

[ 1254.833201] acpi_call: Cannot get handle: Error: AE_NOT_FOUND

Here is my journalctl output.

I'd guess the problem is caused by the errors from journalctl lines #371-#380, but I don't know how to proceed.

Any help? Thanks! tongue

Last edited by thesstefan (2020-12-29 05:11:11)


#2 2020-12-29 10:09:54

Forum Moderator
Registered: 2012-10-16
Posts: 12,186

Re: ACPI Error: AE_NOT_FOUND on acpi_call (Yoga Slim 7 14ARE05)

As mentioned in the log those are usually firmware issues, so maybe check whether there's an UEFI update available. Maybe also try to find general/Windows based documentation that changing this should be possible for your particular model.


#3 2020-12-29 11:55:51

Registered: 2020-12-29
Posts: 2

Re: ACPI Error: AE_NOT_FOUND on acpi_call (Yoga Slim 7 14ARE05)

The UEFI seems to be up to date. I don't know what do you mean by "documentation", but in Windows the changing of those mode is provided by the Lenovo Vantage up or can be done directly in the BIOS.


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