https://bugzilla.kernel.org/show_bug.cgi?id=212951
Bug ID: 212951 Summary: System freeze for 30 seconds after exiting s2idle Product: ACPI Version: 2.5 Kernel Version: 5.12 Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: blocking Priority: P1 Component: BIOS Assignee: acpi_b...@kernel-bugs.osdl.org Reporter: chris.c...@canonical.com Regression: No Created attachment 296647 --> https://bugzilla.kernel.org/attachment.cgi?id=296647&action=edit The Full DSDT ASL Hi, We have some Intel laptops (11th generation CPU) with NVIDIA GPU suffering the same GPU falling off the bus problem while exiting s2idle with external display connected. These laptops connect the external display via the HDMI/DisplayPort on a USB Type-C interfaced dock. If we enter and exit s2idle with the dock connected, the NVIDIA GPU (confirmed on 10de:24b6 and 10de:25b8) and the PCIe port can come back to D0 w/o problem. If we enter the s2idle, disconnect the dock, then exit the s2idle, both external display and the panel will remain with no output for ~30 seconds. The dmesg as follows shows the "nvidia 0000:01:00.0:can't change power state from D3cold to D0 (config space inaccessible)" due to the following ACPI error [ 154.446781] [ 154.446783] [ 154.446783] Initialized Local Variables for Method [IPCS]: [ 154.446784] Local0: 000000009863e365 <Obj> Integer 00000000000009C5 [ 154.446790] [ 154.446791] Initialized Arguments for Method [IPCS]: (7 arguments defined for method invocation) [ 154.446792] Arg0: 0000000025568fbd <Obj> Integer 00000000000000AC [ 154.446795] Arg1: 000000009ef30e76 <Obj> Integer 0000000000000000 [ 154.446798] Arg2: 00000000fdf820f0 <Obj> Integer 0000000000000010 [ 154.446801] Arg3: 000000009fc2a088 <Obj> Integer 0000000000000001 [ 154.446804] Arg4: 000000003a3418f7 <Obj> Integer 0000000000000001 [ 154.446807] Arg5: 0000000020c4b87c <Obj> Integer 0000000000000000 [ 154.446810] Arg6: 000000008b965a8a <Obj> Integer 0000000000000000 [ 154.446813] [ 154.446815] ACPI Error: Aborting method \IPCS due to previous error (AE_AML_LOOP_TIMEOUT) (20200925/psparse-529) [ 154.446824] ACPI Error: Aborting method \MCUI due to previous error (AE_AML_LOOP_TIMEOUT) (20200925/psparse-529) [ 154.446829] ACPI Error: Aborting method \SPCX due to previous error (AE_AML_LOOP_TIMEOUT) (20200925/psparse-529) [ 154.446835] ACPI Error: Aborting method \_SB.PC00.PGSC due to previous error (AE_AML_LOOP_TIMEOUT) (20200925/psparse-529) [ 154.446841] ACPI Error: Aborting method \_SB.PC00.PGON due to previous error (AE_AML_LOOP_TIMEOUT) (20200925/psparse-529) [ 154.446846] ACPI Error: Aborting method \_SB.PC00.PEG1.NPON due to previous error (AE_AML_LOOP_TIMEOUT) (20200925/psparse-529) [ 154.446852] ACPI Error: Aborting method \_SB.PC00.PEG1.PG01._ON due to previous error (AE_AML_LOOP_TIMEOUT) (20200925/psparse-529) [ 154.446860] acpi device:02: Failed to change power state to D0 [ 154.690760] video LNXVIDEO:00: Cannot transition to power state D0 for parent in (unknown) The IPCS is the last function called from \_SB.PC00.PEG1.PG01._ON which we expect it to prepare everything before bringing back the NVIDIA GPU but it's stuck in the infinite loop as described below. Please refer to the attached full dsdt.sal While (One) { If ((!IBSY || (IERR == One))) { Break } If ((Local0 > TMOV)) { RPKG [Zero] = 0x03 Return (RPKG) /* \IPCS.RPKG */ } Sleep (One) Local0++ } And the upstream PCIe port of NVIDIA seems to become inaccessible due to the messages as follows. [ 292.746508] pcieport 0000:00:01.0: waiting 100 ms for downstream link, after activation [ 292.882296] pci 0000:01:00.0: waiting additional 100 ms to become accessible [ 316.876997] pci 0000:01:00.0: can't change power state from D3cold to D0 (config space inaccessible) Since the IPCS is the Intel Reference Code and we don't really know why the never-end loop happens just because we unplug the dock while the system still stays in s2idle. Can anyone from Intel suggest what happens here? And one thing also worth mentioning, if we unplug the display cable from the dock before entering the s2idle, NVIDIA GPU can come back w/o problem even if we disconnect the dock before exiting s2idle. Here's the lspci information in the attached lspci.log and the dmesg.log with ACPI trace_state enabled and dynamic debug on for drivers/pci/pci.c, drivers/acpi/device_pm.c for the whole s2idle enter/exit with IPCS timeout. Any suggestion would be appreciated. Thanks. Chris -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla