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SubjectACPI related problems on an Acer TravelMate 800LCi
Hi folks,

I am encoutering ACPI related problems with 2.6.0-test3 and my Acer TravelMate
800 LCi. Everytime I try to send it to suspend mode ('echo 3 > /proc/acpi/sleep'),
the following lines appears in syslog and the box does not suspend at all:

Aug 18 13:07:34 eurydice kernel: Stopping tasks: ==========================|
Aug 18 13:07:34 eurydice kernel: hda: start_power_step(step: 0)
Aug 18 13:07:34 eurydice kernel: hda: start_power_step(step: 1)
Aug 18 13:07:34 eurydice kernel: hda: complete_power_step(step: 1, stat: 50, err: 0)
Aug 18 13:07:34 eurydice kernel: hda: completing PM request, suspend
Aug 18 13:07:34 eurydice kernel: [ACPI Debug] String: >>>> _PTS ------------
Aug 18 13:07:34 eurydice kernel: [ACPI Debug] Integer: 0000000000000003
Aug 18 13:07:34 eurydice kernel: ACPI: don't know how to handle 3 state.
Aug 18 13:07:34 eurydice kernel: Back to C!
Aug 18 13:07:34 eurydice kernel: [ACPI Debug] String: >>>> _WAK ------------
Aug 18 13:07:34 eurydice kernel: [ACPI Debug] Integer: 0000000000000003
Aug 18 13:07:34 eurydice kernel: PCI: Setting latency timer of device 0000:00:1f.5 to 64
Aug 18 13:07:34 eurydice kernel: hda: Wakeup request inited, waiting for !BSY...
Aug 18 13:07:34 eurydice kernel: hda: start_power_step(step: 1000)
Aug 18 13:07:34 eurydice kernel: blk: queue dfd02c00, I/O limit 4095Mb (mask 0xffffffff)
Aug 18 13:07:34 eurydice kernel: hda: completing PM request, resume
Aug 18 13:07:34 eurydice kernel: Restarting tasks... done

After doing the same command another time, I saw the following in syslog after
reboot (the box locked up hard when I tried to start X):

Aug 18 13:12:38 eurydice kernel: Stopping tasks: ==========================|
Aug 18 13:12:38 eurydice kernel: hda: start_power_step(step: 0)
Aug 18 13:12:38 eurydice kernel: hda: start_power_step(step: 1)
Aug 18 13:12:38 eurydice kernel: hda: complete_power_step(step: 1, stat: 50, err: 0)
Aug 18 13:12:38 eurydice kernel: hda: completing PM request, suspend
Aug 18 13:12:38 eurydice kernel: Debug: sleeping function called from invalid context at include/linux/rwsem.h:66
Aug 18 13:12:38 eurydice kernel: Call Trace:
Aug 18 13:12:38 eurydice kernel: [__might_sleep+95/116] __might_sleep+0x5f/0x74
Aug 18 13:12:38 eurydice kernel: [device_suspend+36/236] device_suspend+0x24/0xec
Aug 18 13:12:38 eurydice kernel: [acpi_save_state_mem+105/109] acpi_save_state_mem+0x69/0x6d
Aug 18 13:12:38 eurydice kernel: [acpi_system_save_state+104/138] acpi_system_save_state+0x68/0x8a
Aug 18 13:12:38 eurydice kernel: [acpi_suspend+111/191] acpi_suspend+0x6f/0xbf
Aug 18 13:12:38 eurydice kernel: [acpi_system_write_sleep+239/293] acpi_system_write_sleep+0xef/0x125
Aug 18 13:12:38 eurydice kernel: [acpi_system_write_sleep+0/293] acpi_system_write_sleep+0x0/0x125
Aug 18 13:12:38 eurydice kernel: [vfs_write+161/268] vfs_write+0xa1/0x10c
Aug 18 13:12:38 eurydice kernel: [sys_write+63/93] sys_write+0x3f/0x5d
Aug 18 13:12:38 eurydice kernel: [syscall_call+7/11] syscall_call+0x7/0xb
Aug 18 13:12:38 eurydice kernel:
Aug 18 13:12:38 eurydice kernel: [ACPI Debug] String: >>>> _PTS ------------
Aug 18 13:12:38 eurydice kernel: [ACPI Debug] Integer: 0000000000000003
Aug 18 13:12:38 eurydice kernel: ACPI: don't know how to handle 3 state.
Aug 18 13:12:38 eurydice kernel: Back to C!
Aug 18 13:12:38 eurydice kernel: [ACPI Debug] String: >>>> _WAK ------------
Aug 18 13:12:38 eurydice kernel: [ACPI Debug] Integer: 0000000000000003
Aug 18 13:12:38 eurydice kernel: PCI: Setting latency timer of device 0000:00:1f.5 to 64
Aug 18 13:12:38 eurydice kernel: hda: Wakeup request inited, waiting for !BSY...
Aug 18 13:12:38 eurydice kernel: hda: start_power_step(step: 1000)
Aug 18 13:12:38 eurydice kernel: hda: completing PM request, resume
Aug 18 13:12:38 eurydice kernel: Restarting tasks... done

I would also have tried 2.6.0-test3-bk5 but somehow the ACPI menu disappeared
with that version and .config does not even have something ACPI specific in it.

--
.''`. Martin Loschwitz Debian GNU/Linux developer
: :' : madkiss@madkiss.org madkiss@debian.org
`. `'` http://www.madkiss.org/ people.debian.org/~madkiss/
`- Use Debian GNU/Linux 3.0! See http://www.debian.org/
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