From: bugzilla-daemon@kernel.org
To: platform-driver-x86@vger.kernel.org
Subject: [Bug 218305] New: Ryzen 7 7840HS gets stuck at 544MHz frequency after a random number of suspend/resume cycles
Date: Sun, 24 Dec 2023 07:21:48 +0000 [thread overview]
Message-ID: <bug-218305-215701@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=218305
Bug ID: 218305
Summary: Ryzen 7 7840HS gets stuck at 544MHz frequency after a
random number of suspend/resume cycles
Product: Drivers
Version: 2.5
Hardware: AMD
OS: Linux
Status: NEW
Severity: blocking
Priority: P3
Component: Platform_x86
Assignee: drivers_platform_x86@kernel-bugs.osdl.org
Reporter: aros@gmx.com
Regression: No
I'm almost sure it's a bug in the firmware but since I cannot make HP fix it,
I'll try to report it here.
The CPU gets stuck at this extremely low frequency after N number of
suspend/resume cycles where N can be 1, 2, 3, 4 but at most 5.
The laptop is plugged in at all times.
This is happening with both acpi-cpufreq and amd-pstate-epp.
# cpupower frequency-info
analyzing CPU 10:
driver: amd-pstate-epp
CPUs which run at the same hardware frequency: 10
CPUs which need to have their frequency coordinated by software: 10
maximum transition latency: Cannot determine or is not supported.
hardware limits: 400 MHz - 6.08 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 400 MHz and 6.08 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 544 MHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
AMD PSTATE Highest Performance: 232. Maximum Frequency: 6.08 GHz.
AMD PSTATE Nominal Performance: 145. Nominal Frequency: 3.80 GHz.
AMD PSTATE Lowest Non-linear Performance: 42. Lowest Non-linear Frequency:
1.10 GHz.
AMD PSTATE Lowest Performance: 16. Lowest Frequency: 400 MHz.
Some CPU parameters look completely wrong after it happens:
# ryzenadj -i
| Name | Value | Parameter |
|---------------------|-----------|--------------------|
| STAPM LIMIT | 30.000 | stapm-limit |
| STAPM VALUE | 4.181 | |
| PPT LIMIT FAST | 30.000 | fast-limit |
| PPT VALUE FAST | 5.347 | |
| PPT LIMIT SLOW | 20.000 | slow-limit |
| PPT VALUE SLOW | 3.747 | |
| StapmTimeConst | nan | stapm-time |
| SlowPPTTimeConst | nan | slow-time |
| PPT LIMIT APU | nan | apu-slow-limit |
| PPT VALUE APU | nan | |
| TDC LIMIT VDD | nan | vrm-current |
| TDC VALUE VDD | nan | |
| TDC LIMIT SOC | nan | vrmsoc-current |
| TDC VALUE SOC | nan | |
| EDC LIMIT VDD | nan | vrmmax-current |
| EDC VALUE VDD | nan | |
| EDC LIMIT SOC | nan | vrmsocmax-current |
| EDC VALUE SOC | nan | |
| THM LIMIT CORE | nan | tctl-temp |
| THM VALUE CORE | nan | |
| STT LIMIT APU | nan | apu-skin-temp |
| STT VALUE APU | nan | |
| STT LIMIT dGPU | nan | dgpu-skin-temp |
| STT VALUE dGPU | nan | |
| CCLK Boost SETPOINT | nan | power-saving / |
| CCLK BUSY VALUE | nan | max-performance |
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next reply other threads:[~2023-12-24 7:21 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-24 7:21 bugzilla-daemon [this message]
2023-12-24 7:27 ` [Bug 218305] Ryzen 7 7840HS gets stuck at 544MHz frequency after a random number of suspend/resume cycles bugzilla-daemon
2023-12-24 7:30 ` bugzilla-daemon
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2024-03-06 17:17 ` [Bug 218305] Ryzen 7 7840HS gets stuck at 544MHz frequency after resuming after unplugging the power cord during sleep bugzilla-daemon
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