I'm just setting up my new Dell latitude E6500 with Fedora Core 9. Suspend seems to work, but when I re-start the screen stays blank and there's nothing but the occasional disk access going on. "Blind" re-booting with ctrl-alt-del doesn't work and I have to power-off and restart to get it running again. On investigating, I found that the acpid initscript wasn't running. If I try to run acpid manually it reports:
acpid: can't open /proc/acpi/event: No such file or directory
and indeed /proc/acpi does not have an event file or directory. I've checked my kernel config and I've got PM, ACPI and suspend to RAM configured in there, so I'm at a loss ass to why I'm missing the /proc/acpi element.
Relevant lines from dmesg:

ACPI: RSDP 000FB990, 0024 (r2 DELL )
ACPI: XSDT DF451E00, 006C (r1 DELL M09 27D8081D ASL 61)
ACPI: FACP DF451C9C, 00F4 (r4 DELL M09 27D8081D ASL 61)
ACPI: DSDT DF452400, 68D3 (r2 INT430 SYSFexxx 1001 INTL 20050624)
ACPI: FACS DF460C00, 0040
ACPI: HPET DF451F00, 0038 (r1 DELL M09 1 ASL 61)
ACPI: ____ DF460400, 0030 (r1 DELL M09 27D8081D ASL 61)
ACPI: APIC DF452000, 0068 (r1 DELL M09 27D8081D ASL 47)
ACPI: ASF! DF451C00, 006A (r32 DELL M09 27D8081D ASL 61)
ACPI: MCFG DF451FC0, 003E (r16 DELL M09 27D8081D ASL 61)
ACPI: SLIC DF45209C, 0176 (r1 DELL M09 27D8081D ASL 61)
ACPI: TCPA DF452300, 0032 (r1 0 ASL 0)
ACPI: SSDT DF45032D, 066C (r1 PmRef CpuPm 3000 INTL 20050624)
ACPI: PM-Timer IO Port: 0x1008
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
ACPI: HPET id: 0x8086a201 base: 0xfed00000
ACPI: Core revision 20080609
ACPI: bus type pci registered
ACPI: EC: Look up EC in DSDT
ACPI: BIOS _OSI(Linux) query ignored
ACPI: DMI System Vendor: Dell Inc.
ACPI: DMI Product Name: Latitude E6500
ACPI: DMI Product Version:
ACPI: DMI Board Name: 0PP476
ACPI: DMI BIOS Vendor: Dell Inc.
ACPI: DMI BIOS Date: 08/29/2008
ACPI: Please send DMI info above to linux-acpi@vger.kernel.org
ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@vger.kernel.org
ACPI: Interpreter enabled
ACPI: (supports S0 S3 S4 S5)
ACPI: Using IOAPIC for interrupt routing
ACPI: EC: non-query interrupt received, switching to interrupt mode
ACPI: EC: GPE = 0x11, I/O: command/status = 0x934, data = 0x930
ACPI: EC: driver started in interrupt mode
ACPI: PCI Root Bridge [PCI0] (0000:00)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCIE._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.AGP_._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP01._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP02._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP03._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP04._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 10 11) *3
ACPI: PCI Interrupt Link [LNKB] (IRQs 5 7) *10
ACPI: PCI Interrupt Link [LNKC] (IRQs 10 *11)
ACPI: PCI Interrupt Link [LNKD] (IRQs 5 7 *10 11)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKF] (IRQs *3 4 5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
pnp: PnP ACPI init
ACPI: bus type pnp registered
pnp: PnP ACPI: found 13 devices
ACPI: ACPI bus type pnp unregistered
PCI: Using ACPI for IRQ routing
ACPI: RTC can wake from S4
ACPI: AC Adapter [AC] (on-line)
ACPI: Battery Slot [BAT0] (battery present)
ACPI: Battery Slot [BAT1] (battery absent)
ACPI: Lid Switch [LID]
ACPI: Power Button (CM) [PBTN]
ACPI: Sleep Button (CM) [SBTN]
ACPI: SSDT DF450999, 0281 (r1 PmRef BspIst 3000 INTL 20050624)
ACPI: SSDT DF450DF1, 05C6 (r1 PmRef BspCst 3001 INTL 20050624)
ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
processor ACPI0007:00: registered as cooling_device0
ACPI: Processor [CPU0] (supports 8 throttling states)
ACPI: SSDT DF450C1A, 01D7 (r1 PmRef ApIst 3000 INTL 20050624)
ACPI: SSDT DF4513B7, 008D (r1 PmRef ApCst 3000 INTL 20050624)
ACPI: CPU1 (power states: C1[C1] C2[C2] C3[C3])
processor ACPI0007:01: registered as cooling_device1
ACPI: Processor [CPU1] (supports 8 throttling states)
ACPI: Thermal Zone [THM] (51 C)
ACPI: WMI: Mapper loaded
ACPI: Video Device [VID] (multi-head: yes rom: no post: no)
ACPI: Video Device [VID1] (multi-head: yes rom: no post: no)
ACPI: Video Device [VID2] (multi-head: yes rom: no post: no)


Any ideas?

Hi, from what I've understood, much configuration is being migrated to sysfs, and, this migration being new, not many programs support calls via sysfs. For acpid you have to enable legacy /proc/acpi/event (ACPI_PROC_EVENT=y in your .config file).

Serafean

PS: I'm not sure it's a good idea to post all your personnal details in your signature...

Thanks. I wasn't seeing that option in gconfig (maybe I'm blind, maybe it's not showing). I'll try a recompile, but this makes sense so should hopefully fix it. Ah, legacy interface issues :-).