http://bugzilla.kernel.org/show_bug.cgi?id=7840
Summary: HP Compaq nc6320 Softlocks on boot when powered by
Battery
Kernel Version: Ubuntu 2.6.17-10.34-generic
Status: NEW
Severity: normal
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
Most recent kernel where this bug did *NOT* occur:
Unknown
Distribution:
Ubuntu
Hardware Environment:
HP Compaq nc6320
Software Environment:
Ubuntu, boot time
Problem Description:
When booting using only battery power, the laptop often expereinces a softlock
on CPU#0. Plugging AC in and rebooting seems to be the only cure.
Steps to reproduce:
Computer off
No AC adapter plugged in
Power up computer.
Bug seems to still occur if the AC is plugged in after initial powerup, but
before the softlock.
Does not appear to occur with either acpi=off, or apm=off.
Booting with acpi=off causes other problems though - see dmesg output for an
IRQ11 which noone cared about. Also, the sound card went slightly barmy and
repeated the ubuntu startup sound sample over and over.
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