https://bugzilla.kernel.org/show_bug.cgi?id=44451
Leon Wilk <sharpf...@gmail.com> changed:
What |Removed |Added
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Attachment #77781|0 |1
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Attachment #77791|0 |1
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--- Comment #13 from Leon Wilk <sharpf...@gmail.com> 2012-08-20 19:57:04 ---
Created an attachment (id=78051)
--> (https://bugzilla.kernel.org/attachment.cgi?id=78051)
dmesg for a kernel with CONFIG_ACPI_DEBUG=y
root@pony:~# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-3.2.24acpidbg
root=UUID=300655c5-a6b5-4a55-b86a-5a5efcc5d3db ro
crashkernel=384M-2G:64M,2G-:128M verbose acpi.debug_level=0x0000000F
acpi.debug_layer=0xffffffff log_buf_len=5M acpi_backlight=vendor
It's not exactly the same kernel but there don't seem to be differences
concerning ACPI behavior.
My hunch is that the problem reaches much deeper - this computer, bought new
some 3 months ago, by vendor specs should last "up to 9 hours" on a single
charge of battery. It lasts under 3 hours under moderate load (web browsing,
wifi) and it looks like it was running without any power-saving features at
all. But backlight dimming is the most tangible and visible feature missing
currently, and probably a good point to start; "I have a feeling battery saving
functions don't work" doesn't make a very good bug report.
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