[ltp] Possible solution to ACPI power drain with 2.6.10

[Michele Lamarca]

> What I see (below) is puzzling. A bit long and my questions interspersed
> amongst the kern.log lines.

This is my kern.log

Jan 21 18:17:08 thinkmad kernel: PM: Preparing system for suspend
Jan 21 18:17:08 thinkmad kernel: Stopping tasks:
=======================================|
Jan 21 18:17:08 thinkmad kernel: radeonfb: suspending to state: 3...
Jan 21 18:17:08 thinkmad kernel: radeonfb: switching to D2 state...
Jan 21 18:17:08 thinkmad kernel: PM: Entering state.
Jan 21 18:17:08 thinkmad kernel:  hwsleep-0306 [1756]
acpi_enter_sleep_state: Entering sleep state [S3]
Jan 21 18:17:08 thinkmad kernel: Back to C!
Jan 21 18:17:08 thinkmad kernel: psmouse.c: TouchPad at
isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.
Jan 21 18:17:08 thinkmad kernel: PM: Finishing up.
Jan 21 18:17:08 thinkmad kernel: PCI: Setting latency timer of device
0000:00:1d.0 to 64
Jan 21 18:17:08 thinkmad kernel: PCI: Setting latency timer of device
0000:00:1d.1 to 64
Jan 21 18:17:08 thinkmad kernel: PCI: Setting latency timer of device
0000:00:1d.2 to 64
Jan 21 18:17:08 thinkmad kernel: PCI: cache line size of 32 is not
supported by device 0000:00:1d.7
Jan 21 18:17:08 thinkmad kernel: ehci_hcd 0000:00:1d.7: USB 2.0
restarted, EHCI 1.00, driver 10 Dec 2004
Jan 21 18:17:08 thinkmad kernel: ACPI: PCI interrupt 0000:00:1f.1[A]
-> GSI 11 (level, low) -> IRQ 11
Jan 21 18:17:08 thinkmad kernel: ACPI: PCI interrupt 0000:00:1f.5[B]
-> GSI 5 (level, low) -> IRQ 5
Jan 21 18:17:08 thinkmad kernel: PCI: Setting latency timer of device
0000:00:1f.5 to 64
Jan 21 18:17:08 thinkmad kernel: ACPI: PCI interrupt 0000:00:1f.6[B]
-> GSI 5 (level, low) -> IRQ 5
Jan 21 18:17:08 thinkmad kernel: PCI: Setting latency timer of device
0000:00:1f.6 to 64
Jan 21 18:17:08 thinkmad kernel: radeonfb: switching to D0 state...
Jan 21 18:17:08 thinkmad kernel: radeonfb: resumed !
Jan 21 18:17:08 thinkmad kernel: ACPI: PCI interrupt 0000:02:02.0[A]
-> GSI 11 (level, low) -> IRQ 11
Jan 21 18:17:08 thinkmad kernel: Restarting tasks... done

For me too, time appears to freeze during suspend. Some log from your
previous post showed something about radeonfb. Maybe there's something
different in your syslog.conf and/or kernel config.

Ciao,
Michele