I wrote
> While some thing did disappear, I think the acpi interrupt that showed
> up is interesting, isn't it?

And looking at /proc/interrupts interestingly a new interrupt shows up
after resume:
cat /proc/interrupts
 19:          1   IO-APIC-fasteoi

which seems to be the ide/ahci-controller on first boot
233-[   21.123029] ICH8M: IDE controller (0x8086:0x2850 rev 0x03) at
PCI slot 0000:00:1f.1
234:[   21.123125] ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 19
(level, low) -> IRQ 19
235-[   21.123270] ICH8M: not 100% native mode: will probe irqs later

248-[   23.473027] ahci 0000:00:1f.2: version 3.0
249:[   23.473047] ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19
(level, low) -> IRQ 19
250-[   23.475019] scsi 0:0:0:0: CD-ROM            Slimtype DVD A
DS8A1P    CA11 PQ: 0 ANSI: 0
251-[   24.473231] ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 3 ports
3 Gbps 0x7 impl SATA mode
252-[   24.473316] ahci 0000:00:1f.2: flags: 64bit ncq sntf led clo
pio slum part

and on resume
559-[    3.167084] PM: Writing back config space on device
0000:00:1f.1 at offset f (was 100, writing 1ff)
560:[    3.167108] ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 19
(level, low) -> IRQ 19

lspci
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express
Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express
Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express
Port 3 (rev 03)

But I don't even know if that might be the issue. Hope I'm not just
filling empty space here.

Cheers
Dennis

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