Thanks for the report, Kevin. Could you also attach the dmesg log from booting with "pci=earlydump"? The kernel really should log the BARs and windows we get from firmware before we change anything, but we currently do not, so "pci=earlydump" is the only way to get that. ----- Forwarded message from bugzilla-daemon@xxxxxxxxxxxxxxxxxxx ----- Date: Mon, 02 Aug 2021 16:02:47 +0000 From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx To: bjorn@xxxxxxxxxxx Subject: [Bug 213945] New: Unable to power off iMac16,2 Message-ID: <bug-213945-41252@xxxxxxxxxxxxxxxxxxxxxxxxx/> https://bugzilla.kernel.org/show_bug.cgi?id=213945 Bug ID: 213945 Summary: Unable to power off iMac16,2 Product: Drivers Version: 2.5 Kernel Version: 5.4.0 Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: PCI Assignee: drivers_pci@xxxxxxxxxxxxxxxxxxxx Reporter: kevo@xxxxxxxxxxxxxxxxx Regression: No Created attachment 298155 --> https://bugzilla.kernel.org/attachment.cgi?id=298155&action=edit dmesg I believe this bug is very similar if not the same to https://bugzilla.kernel.org/show_bug.cgi?id=103211. I have managed to work around it and have the computer power off by using the two setpci commands from comment 298 in bug report 103211 in a systemd shutdown script placed in /lib/systemd/system-shutdown. #!/bin/sh case $1 in poweroff) setpci -s1c.0 0x20.l=0xf011f001 setpci -s1c.0 0x24.l=0xf031f021 ;; esac Without the script the computer will just hang at shutdown. It also will not suspend properly. It looks like it does, but then it will not wake up and I have to hard power it down by holding the power button for 10 seconds before I can turn it back on again. I am attaching the output of dmesg, lspci, dmidecode and /proc/iomem and /proc/ioports to aid in possibly extending the quirk fix from the previous bug report. Hopefully the issue is similar enough that it will be a quick fix. I do believe I am running the latest BIOS (427.140.8.0.0 06/13/2021) which I believe was installed when I installed Big Sur. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ----- End forwarded message -----
