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b=HHWej7qp93fldwbXitX/Vnm9YJlNN1LTilivg4Hg+RxsyrvD3eK001UUT3zwHANwM6yfV5vDdgYbraWvXL7siqZ6uiab7R0fn9T+Qx51GeVjL4n/2bnEfypzFxu2Wke5xS+hkqaz0VvanrYFgS3WnsIVB4DT1CTg8cyV8ekcNZQ= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Received: from MN0PR12MB6101.namprd12.prod.outlook.com (2603:10b6:208:3cb::10) by PH7PR12MB5949.namprd12.prod.outlook.com (2603:10b6:510:1d8::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9388.14; Mon, 8 Dec 2025 19:31:23 +0000 Received: from MN0PR12MB6101.namprd12.prod.outlook.com ([fe80::37ee:a763:6d04:81ca]) by MN0PR12MB6101.namprd12.prod.outlook.com ([fe80::37ee:a763:6d04:81ca%7]) with mapi id 15.20.9388.013; Mon, 8 Dec 2025 19:31:23 +0000 Message-ID: <8184d299-e223-4acd-b0b8-01463675b8fb@amd.com> Date: Mon, 8 Dec 2025 13:31:21 -0600 User-Agent: Mozilla Thunderbird Subject: Re: [BUG] AMD PMC causes system hang on suspend (HP EliteBook X G1a, Strix Point) To: CX MAIL Cc: "Shyam-sundar.S-k@amd.com" , "platform-driver-x86@vger.kernel.org" References: <93e7ZGFEiN1SZoCHCVwqctZPrrUmJUlz9NHui4lh4glOm8PYaanRann4m0T9jeq3LwD8mICbSiCw9-COSfmMcDoGNN83VHkK-3wj-PUmfNo=@pm.me> <60b09100-fe58-4330-b5dd-707eabf8f5ff@amd.com> <_coqLqv0F7WEy-Y31rFUYSagGjuaEVB6-xIARLfhAn0nr4_1ELo_38YthlyZA6Ou1mKAcoDCKIBYZ8foICKeyaEAmUjIYBiTDCfeWCtjpYA=@pm.me> Content-Language: en-US From: Mario Limonciello In-Reply-To: <_coqLqv0F7WEy-Y31rFUYSagGjuaEVB6-xIARLfhAn0nr4_1ELo_38YthlyZA6Ou1mKAcoDCKIBYZ8foICKeyaEAmUjIYBiTDCfeWCtjpYA=@pm.me> Content-Type: text/plain; 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I get the same symptom that system hangs before suspend entry. > > Thanks, > CX > > ``` > Debugging script for s2idle on AMD systems > 💻 HP HP EliteBook X G1a 14 inch Notebook Next Gen AI PC (103C_5336AN HP EliteBook) > 🐧 Bazzite > 🐧 Kernel 6.17.7-ba19.fc43.x86_64 > 🔋 Battery BAT0 (Hewlett-Packard Primary) is operating at 98.37% of design > Checking prerequisites for s2idle > ✅ Logs are provided via systemd > ✅ AMD Ryzen AI 9 HX PRO 375 w/ Radeon 890M (family 1a model 24) > ✅ ASPM policy set to 'default' > ✅ SMT enabled > ✅ LPS0 _DSM enabled > ✅ ACPI FADT supports Low-power S0 idle > ✅ PMC driver `amd_pmc` loaded (Program 11 Firmware 93.10.0) > ✅ USB3 driver `xhci_hcd` bound to 0000:c3:00.4 > ✅ USB3 driver `xhci_hcd` bound to 0000:c5:00.0 > ✅ USB3 driver `xhci_hcd` bound to 0000:c5:00.3 > ✅ USB3 driver `xhci_hcd` bound to 0000:c5:00.4 > ✅ USB4 driver `thunderbolt` bound to 0000:c5:00.5 > ✅ USB4 driver `thunderbolt` bound to 0000:c5:00.6 > ✅ WLAN driver `mt7925e` bound to 0000:c2:00.0 > ✅ GPU driver `amdgpu` bound to 0000:c3:00.0 > ✅ System is configured for s2idle > ✅ GPIO driver `pinctrl_amd` available > ✅ PC6 and CC6 states are enabled > ❌ IOMMU is misconfigured: missing MSFT0201 ACPI device > ✅ RTC driver `rtc_cmos` configured to use CMOS alarm > ❌ Kernel is tainted: 64 > Your system does not meet s2idle prerequisites! > Explanations for your system > 🚦 Device MSFT0201 missing from ACPI tables > The ACPI device {device} is required for suspend to work when the IOMMU is enabled. > Please check your BIOS settings and if configured correctly, report a bug to your system vendor. > > For more information on this failure see: > https://gitlab.freedesktop.org/drm/amd/-/issues/3738#note_2667140 > 🚦 Kernel is tainted > A tainted kernel may exhibit unpredictable bugs that are difficult for this script to characterize. > If this is intended behavior run the tool with --force. > > For more information on this failure see: > https://gitlab.freedesktop.org/drm/amd/-/issues/3089 > ``` > > > Sent with Proton Mail secure email. > > On Wednesday, December 3rd, 2025 at 1:56 PM, Mario Limonciello wrote: > >> On 12/3/25 11:28 AM, CX MAIL wrote: >> >>> Hello, >>> >>> I'm reporting a critical suspend issue on HP EliteBook X G1a with AMD Ryzen >>> AI 9 HX 375 (Strix Point). The system completely hangs when entering s2idle >>> with the AMD PMC driver loaded. >>> >>> Hardware: >>> - Model: HP EliteBook X G1a 14 inch (Model 8D08) >>> - CPU: AMD Ryzen AI 9 HX 375 (Strix Point) >>> - GPU: Radeon 890M (integrated) >>> - BIOS: X88 Ver. 01.03.11 (2025-09-03) >>> >>> Kernel: 6.17.7-ba19.fc43.x86_64 (Fedora-based) >>> Current cmdline: bluetooth.disable_ertm=1 amdgpu.gpu_recovery=1 pcie_aspm=off >>> >>> Problem: >>> When executing "systemctl suspend", the system enters s2idle but immediately >>> hangs. The last kernel message is "PM: suspend entry (s2idle)" with no >>> further output. System becomes completely unresponsive - keyboard, touchpad, >>> and power button (short press) have no effect. Only hard power-off works. >>> >>> BIOS configuration: >>> - APMF enabled >>> - Modern Standby (s2idle only, S3 not supported by firmware) >>> - /sys/power/mem_sleep: [s2idle] >>> >>> AMD PMC device present: /sys/bus/platform/devices/AMDI000A:00/ >>> >>> Workaround: >>> Adding "initcall_blacklist=amd_pmc_driver_init" to kernel cmdline prevents >>> the AMD PMC driver from loading. With this workaround, s2idle works perfectly >>> and the system resumes normally from suspend. >>> >>> Verification with workaround: >>> - lsmod | grep amd_pmc: (no output - driver not loaded) >>> - Suspend/resume cycle: successful >>> >>> Logs attached: >>> 1. system-info.txt - detailed system information >>> 2. suspend-fail.log - Journal from failed suspend attempt (hangs after >>> "PM: suspend entry") >>> 3. suspend-success.log - Journal from successful suspend/resume with >>> workaround applied >>> >>> The failure log shows the system stops all output immediately after entering >>> s2idle, suggesting the AMD PMC driver causes a hard hang during early >>> platform suspend initialization. >>> >>> Please let me know if you need any additional debug information or would like >>> me to test patches. >>> >>> Best regards, >>> CX >> >> >> Hi, >> >> Please use amd-s2idle from https://pypi.org/project/amd-debug-tools/ to >> generate a report. It may root cause it for you. If it doesn't, please >> attach it to a bugzilla or drm/freedesktop bug report and CC me. >> >> Thanks,